BEIS – Cabot Institute for the Environment blog

Powering the economy through the engine of Smart Local Energy Systems

Posted on September 22, 2020April 4, 2023 by janet.crompton

How can the Government best retain key skills and re-skill and up-skill the UK workforce to support the recovery and sustainable growth?

This summer the UK’s Department for Business, Energy and Industrial Strategy (BEIS) requested submission of inputs on Post-Pandemic Economic Growth. The below thoughts were submitted to the BEIS inquiry as part of input under the EnergyREV project.

However, there are points raised here that, in the editing and summing up process of the submission, were cut out, hence, this blog on how the UK could power economic recovery through Smart Local Energy Systems (SLES).

1. Introduction: Factors, principles, and implications

In order to transition to a sustainable and flourishing economy from our (post-)COVID reality, we must acknowledge and address the factors that shape the current economic conditions. I suggest to state the impact of such factors through a set of driving principles for the UK’s post-COVID strategy. These factors are briefly explained below along with suggested principles that acknowledge and account for these factors:

1. Zero-carbon economy targets: Given the zero-carbon economy targets for 2050, one could clearly see that any investment other than that in carbon-neutral or carbon-reducing assets will either jeopardise the set targets, or lead to stranding these assets within the next 30 years. As a result, we suggest Principle 1: focus the UK’s investments on green and renewables-based initiatives.

2. Energy is the engine of the economy: It is therefore essential to both grow and expand the clean energy system so that the economy, as a whole, flourishes. This leads us to Principle 2: special focus on supporting greening of the energy system is of prime importance.

3. Localisation trend: Evidently, localisation is emerging as a strong trend due to a number of diverse reasons, such as:

Health: continuous threat of the spread of the COVID-19 virus. The restricted mobility between variously affected localities is likely to be expected, at least, within the medium term, as local outbreaks occur and are contained [1];
Technology: most renewable energy technologies are dependent on the availability of locally distributed renewable sources. For instance, tidal energy can only be harvested on the shore side, while sufficient solar generation can be expected from localities with sunny weather, etc.
Local governance: local communities have a stronger sense of their identity and many prefer to work together (locally) in order to address the challenges they face.
Resilient architectures: distributed, decentralised organisations (be it for critical and non-critical infrastructure, businesses, community, etc.) are much more resilient when faced by threats (e.g., from floods to disease outbreaks).

Thus, we suggest Principle 3: the UK should aim for a locally distributed systems architecture across all areas of infrastructure, business, and society.

4. Smart, globally inter-connected ecosystem: While distributed and decentralised assets are most resilient to systemic failures, they also must be monitored, coordinated and interconnected if they are to act as a single economic and social ecosystem and not just as a set of disjointed assets. Thus, we suggest Principle 4: Smart technology must underpin the distributed, de-centralised economy and ecosystems for monitoring, access, coordination, control and communication.

The UK has already taken the first steps towards smart local energy systems (SLES) through a programme of research and development embodied in 4 large-scale demonstrators (The Energy Superhub Oxford, ReFLEX Orkney, Project Leo, Smart Hub SLES), several design projects and numerous pilots [19]. And, more than that, many innovative businesses (such as Verv and Electron) and non-for profit organisations (such as Community Energy England, Centre for Sustainable Energy) and local/regional authorities (such as Bristol and Manchester City Councils) are well underway in implementing much of the above in practice. Yet, these activities must be systematically replicated while contextually adapted to each locality, and radically scaled up.

As stated by P. Devine-Wright [2], “Local Energy involves professional organisations, primarily partnerships between public and private sectors, with a focus upon public authorities taking a coordinating role to leverage private sector investment in local energy provision.” Here, the local energy landscape is defined to include a range of energy related activities [3]: generating energy; reducing energy use through energy efficiency and behaviour change; managing energy by balancing supply and demand; and purchasing energy.

All of this draws on a range of skills: organisation, communication, management, governance, regulation, technical and technological, business innovation and so on.

The smart aspect of energy system often implies digitally supported coordination of decision-making for a system to optimise its resource use and waste reduction (both generation and consumption), fault tolerance and recovery from failures, support for human decision-making for efficiency and comfort. All of this draws on the skills of software, hardware, and power system engineers [4]. Thus, a particular attention needs to be paid to the “smart” technology occupations and skills training.

On the other hand, the smart energy system will not fulfil its potential without smart users, thus the household and business users also need to acquire skills in the functioning and use of digital energy systems [5–8].

The above noted principles have many implications, a few of which we note below:

1. If clean and renewables-based economy is to take off (as driven by principles 1 and 2) there is a need for a long-term cross-party commitment to investment into and development of such energy systems. There is ample evidence that uncertain, unpredictable, and changeable policy on renewable energy leads to dis-investment and skills loss in these sectors.

2. If distributed architectures are to be successful across the UK’s economy, local authorities would require more financial independence and regulatory support, as well as more accountability for fostering grass-root innovation and participation in the energy sector and economic transition.

3. If smart technology is to underpin the transition, a wide variety of training and educational programmes need to be delivered (from on-the-job training to mass educational programmes through media and specialised university degrees) to enable country-wide participation and contribution. The various areas of skills development are discussed further in section 2.

1.1. On Green Jobs

It is also worth noting that the first two suggested principles necessitate both transition to renewables-based technologies and to green jobs. Currently there are a number of definitions of what a ‘green job’ is [9–11]. To state briefly, it appears that any job has the potential of becoming a green or greener job by changing the practices of the company or service/product lifecycle, as long as it will reduce the environmental impact of enterprises and economic sectors, ultimately to levels that are sustainable [11].

However, this does not offer any means to statistically distinguish between green and non-green jobs [11]. Should a green job be defined by the level of emissions involved or the purpose of the job [12]? Moreover, the standard data concerning employment and the labour market structure does not account for any definition of green jobs either.

Nevertheless, some work has focused on defining profiles of ‘green jobs’ and observing if such jobs differ from non-green ones in terms of skill content and of human capital. For instance, [13] notes that green jobs require more interpersonal skills and require more formal education, work experience and on-the-job training.

Yet other research notes that many of the green jobs that will be in demand as a result of a transition to a low carbon economy are not new jobs as such. Rather, the transition will see a shift of workers in conventional energy industries such as engineers and installers, to apply their expertise in the low-carbon sector [14].

Thus, on green jobs, we observe that:

1. Transition to SLES with green jobs not only has the potential to support the economy to flourish, but will also lead to a more skilled and better qualified workforce within the UK overall.

2. In order to support this transition (and to monitor and coordinate the job market, as per principle 4) clear definition of and operationalisation for statistical data collection on green jobs is needed.

2. Areas of Skills Development

The transition to smart local energy systems has the capacity to create jobs across a number of areas within the UK economy:

2.1 Energy System

With respect to job creation, the renewables-based smart local energy systems are a workforce intensive. They require workforce for the manufacture, distribution, sale, installation, operation, and maintenance of the wide variety of locally distributed generation resources. For instance, to outfit a dwelling with PV panels, panel manufacturers and retailers must be present, installers must be available, as well as maintenance operators for the post-installation period. Additionally, various energy service providers (such as demand-side management, peer to peer trading and storage service operations) can create new businesses, working with the installed distributed generation resources. A similar set of activities is required for integration of all other renewable energy sources, from wind, bio-gas, tidal, wave, anaerobic digestion, to hydrogen. Finally, a set of aggregation and grid regulation service providers must step in to ensure that the renewables-powered localities remain reliably supplied by electricity, irrespective of the generation intermittency and are seamlessly integrated with the UK electricity grid at large and comply with the grid regulations.

Furthermore, we underline that the transition to smart local energy systems is not limited to the electricity generation and use, but must integrate heating and cooling and transportation areas.

2.2 Transportation

To support transition of transportation, the vehicle stock within the country must be re-fitted to either electric sources (electric vehicles: EVs) or to bio-gas or hydrogen fuels. This, in turn, will require new charging and re-fuelling infrastructure installation across the UK’s motorways and cities, as well as workforce to operate these. While the current workforce in refuelling stations can be re-trained to operate the new charging/re-fuelling stations through on-the-job training, the vehicle maintenance workforce will require substantial re-training as EV maintenance is dramatically different from that of present conventional fossil-powered vehicles.

2.3 Heating and Cooling

Similar to renewables-based generation sources for electricity, the transition of heating and cooling systems requires installation of new technology (such as air and ground heat pumps, bore holes, sun-powered hot water tanks, waste heat recycling). This, too, has to be supported by manufacturing, installation and maintenance professionals. Many, such as gas boiler installers, must be re-trained to new skills, e.g., heat pump installation. Some will be attracted from other domains, e.g., builders to carry out the bore hole construction. Yet others will be required to train as engineers.

2.4 Building and Retrofit

Transition to the new energy sources will require integration of such sources into the fabric of the UK’s built environment. This implies both training and regulation for the new built, and retrofit of the existing building stock. This too is a large and labour-intensive transition area, as the workforce must be trained to work in accordance with zero-carbon construction practices.

Similarly, a large-scale retrofit activity is required, e.g., to undertake energy audits, draft proofing advice provision, external and internal wall insulation. Recent experience with provision of funding for retrofit with no skilled parties to deliver it has demonstrated that poor quality workmanship and poor reputation of the scheme can cause more damage than help to further the causes of energy efficiency. Thus, measures (such as register of qualified retrofit providers, contract award only upon qualification confirmation, post-installation quality assurance/audit) must be taken to ensure that retrofit work is undertaken by qualified professionals, for which quality assurance processes and monitoring bodies need to be put in place as well.

2.5 Regulation and Governance

The energy sector is highly regulated and will remain so in the future due to both technical requirements (e.g., maintaining grid frequency) and critically of its continuous availability (e.g., for operation of other businesses and welfare of population). Yet, transition to SLES will require substantial regulatory review and adaptation. For instance, to enable small-scale generation and trading across household and non-energy businesses, the consumers should be able to change suppliers (as they will be often buying from their peers) very frequently (e.g., every 30 minutes) [15].

In addition, new governance structures will be necessary, e.g., a governing body to ensure consistent data collection and standard formats of data sharing across industries.

2.6 Teaching and Training

As noted before, the green jobs will require more interpersonal skills, as well as formal education, particularly in all areas of engineering as well as professionals able to work across disciplines [16]. On-the-job training [13], and re-skilling for the workforce that shifts from the conventional to the low-carbon sector [14] will also be needed alongside mass education of the population at large for using smart energy systems and services. Thus, new education and re-training programmes will be required.

Moreover, many of those currently employed in the energy or related sectors (e.g., building and transport) cannot afford to take time off for additional education and training (e.g., due to financial pressures) [17] and so on-the-job, or paid-for training delivery modes are necessary.

2.7 Impact on Supply Chains

We must also note that the supply chains of the noted areas will, in turn, be changed and re-invigorated: from manufacturing and delivery of new hardware for renewable technology, to research and development investments across the affected sectors and their suppliers.

3. Skills Needed

As discussed above, the transition to SLES requires a wide ranging workforce, with many requiring re-skilling or up-skilling. Below we provide an overview of the preliminary set of skills which are expected to be in short supply in the near future. These skills have been noted as particularly relevant by a set of current energy system practitioners [16, 17], which, though are not definitive for the UK, can be considered sufficiently representative and indicative:

1. Soft Skills, i.e., skills that are necessary for engaging with stakeholders, such as negotiating, building partnerships, organisational skills, listening and communication, time management, etc.

2. Technical Skills, i.e., sills required to install, set up, operate, and maintain the hardware and software necessary (e.g., installation and operation of heat pumps, or EV charging stations, maintenance of wind turbines and data analysis for optimisation of distributed generation and consumption, etc.).

3. Project Management Skills, such as carrying out feasibility studies, handling procurement, identification and coordination of multiple stakeholders, risk management, etc.

4. Financial Skills relate to the skills to finance or obtain funding for projects, such as accounting, fundraising, financial modelling, putting new business models together.

5. Legal skills, such as navigating the regulatory framework, assessing planning permission, managing contracts, challenging smart energy system policy.

6. Skills for Building and Retrofit, such as building carbon neutral dwellings, draft-proofing and laying insulation, inside and outside wall insulation, etc.

7. Policy Making Skills, i.e., setting out policies with insight into their short- and long-term impact, and possible ramifications on other directly and indirectly related activities within the energy sector. This requires understanding of the current state, processes and trajectories within the energy systems, as well as continuous engagement with the sector.

8. Skills for Population at Large which include, to name a few, confidence to engage with smart technology for automaton, control and optimisation of own appliances, understanding of own behavioural impact on energy system and the wider eco-system and so ability to choose the best considered behaviour in a given situation (e.g., with whom to share data or allow access to devices, etc.), ability to engage with energy efficiency measures and benefit from local renewable generation programmes and businesses, etc.

4. Avenues for Skills Acquisition

How can the Government best retain key skills and re-skill and up-skill the UK workforce to support the recovery and sustainable

4.1 Skills Retention

The recent Global Talent Index Report (GETI) [18] carried out by 17,000 respondents from 162 countries has shown that although there is an obvious skills shortage, the most worrying issue for the renewable energy sector is, in fact, the political landscape. A lack of subsidies is of huge concern to the renewable industry, significantly more so than to the conventional and better established non-renewable sectors.

However, the skills shortage is a looming crisis that many are also worried about: 60% of respondents believe there is only 5 years to act before it hits. So what talent is lacking? The discipline of Engineering was reported to be in highest need (50%) and project leadership following with 25%. The latter reinforced by the lack of understanding of the system as a whole: how multiple energy generation methods can work together and complement each other, the role of legal experts and policy makers in steering the path to change, the implementation of effective and relevant training and education programmes and how all of these factors come together.

The key risks to the sector, as a result of talent shortages, include decreased efficiency, loss of business and reduced productivity. These consequences will trigger a negative feedback loop since it is likely that there will be less incentive to work in the renewable energy industry if it is a failing one.

The top three methods to attract the right talent, agreed amongst hiring managers and professionals, include:

Better training: Currently training provided at the universities is often considered too theoretical, and new graduates seem to lack practical experience [17], thus more practical, hands-on training is desirable.
Clearer career progression will help the employees envision their long-term placement with this sector. Yet, clear pathways for progression are still missing.
Increased remuneration and benefits packages are expected to make the jobs more attractive.

However, remuneration was one of the least common reasons for choosing to work in this sector. A possible explanation could be that the majority of the workforce in the renewable industry are between the ages of 25-34. The concern for the climate is more apparent among the younger employees who may enter the sector as they wish to take action against global warming rather than for gaining “job perks” [16].

4.2 Re-Skilling: cross-sector mobility

As noted in section 3 above, many of the skills necessary for enabling transition to SLES are generic, e.g., available within project managers or other workers across other domains. This is an indicator that the workforce currently employed (or recently made redundant) in other areas of economic activity could move to respective positions within the SLES domain. In order to enable such cross-sector mobility (which is relevant for retaining the skilled workforce in employment in the post-COVID environment and throughout the rapid transition to SLES), it is necessary to:

1. make information about the job profiles in SLES widely available across other sectors where adequately qualified staff may be in access of the current sectoral needs (e.g., air travel, retail, hospitality). This will ensure that those outside of SLES sector who may not have looked at SLES as a viable area of work, become aware of the open opportunities;

2. provide demonstrative cases of career transition. The cases of transition should be publicised for each sector specifically, e.g., a case whereby a manager working in airline industry has transitioned to SLES for the airline industry; a case where a store manager from retail industry is transitioning to SLES project management can be publicised within retail industry, etc. This will ensure that each sector worker can envision that those like her can transition to the SLES area. To reinforce the message that the given person has the right skill set for a particular area of SLES, the employers of those who are made redundant could be encouraged to provide this information directly to them;

3. provide opportunities for engagement, e.g., through “open days” whereby all potentially interested parties could visit a SLES workplace and/or have a (video/phone) chat with someone in a similar position of responsibility. This will help the potential applicants to envision the new sector and job to which they would be suited.

Opportunities for re-skilling and career progression/review are already available within many trade unions as part of mid-career review. We suggest that the trade unions could also be drawn upon in supporting the transition to new careers within the SLES sector.

4.3 Up-Skilling the Workforce

The need for training and up-skilling the workforce is clear, both currently in the energy sector and that newly transitioning into it (e.g., due to rapid evolution and change within the technologies, standards, and customer expectations).

However, much of the workforce will be unable to re-enter full time education or training with no income to sustain themselves and their families. As a result, those currently employed in the energy sector (as per our ongoing study) have strong preferences for:

Shorter training courses which can be undertaken e.g., on a one or two leave day basis;
Locally available training that is accessible in close proximity to the home/workplace;
Paid training opportunities which will not lead to loss of earnings, as this dis-incentivises those in need of training (e.g., the builders are reluctant to take time off to qualify for zero-carbon construction if they have sufficient work in the current building industry);
Recognition of ‘learning by doing’ or workplace training;
Training through apprenticeships which provides the necessary practical experience along with theory content. This method of training is particularly well regarded by much of the industry.

4.4 Skills for the New Normal

We must also consider the skills necessary for the new normal work. Given that the impact of COVID will continue to unfold for, at least, the medium time, and that the UK economy must be prepared for potential other future pandemics, we suggest that particular attention should be paid to providing training for the workforce to be able to work remotely/from home, focusing on such skills as, for instance:

digital technology literacy;
self-organisation and time management;
self-care and mental health;
use of online collaboration tools and techniques.

References

[1] LeicestershireLive. Live updates: Pressure on government over lockdown release, door-to-door testing. https://www.leicestermercury.co.uk/news/leicester-news/lockdown-data-map-latest-updates- 4297621, 2020.

[2] P. Devine-Wright. Community versus local energy in a context of climate emergency. Nat Energy, 4:894–896, 2019.

[3] DECC. Community energy strategy. https://www.gov.uk/government/publications/community- energy-strategy, 2015.

[4] West of England joint committee. https://westofengland-ca.moderngov.co.uk/documents/s891/ 13, 2019.

[5] Christopher J Brown and Nils Markusson. The responses of older adults to smart energy monitors. Energy policy, 130:218–226, 2019.

[6] Denise J. Wilkins, Ruzanna Chitchyan, and Mark Levine. Peer-to-peer energy markets: Understanding the values of collective and community trading. In Proceedings of the 2020 CHI Conference on Hu- man Factors in Computing Systems, CHI ’20, page 1–14, New York, NY, USA, 2020. Association for Computing Machinery.

[7] Caroline Bird and Ruzanna Chitchyan. Towards requirements for a demand side response energy management system for households. arXiv preprint arXiv:1908.02617, 2019.

[8] Ruzanna Chitchyan and Caroline Bird. Theory as a source of software requirements. In Proceedings of the 28th International Requirements Engineering Conference, RE’2020. IEEE, 2020.

[9] Gabriela Miranda, Hyoung-Woo Chung, David Gibbs, Richard Howard, and Lisa Rustico. Climate Change, Employment and Local Development in Extremadura, Spain. OECD Local Economic and Employment Development (LEED) Working Papers 2011/04, OECD Publishing, Paris, 2011.

[10] Construction Industry Training Board. Skills Needs Analysis of the Construction and Built Environment Sector in Wales Theme : Onsite and offsite construction in Wales. Technical report, CITB, 2013.

[11] Con Gregg, Olga Strietska-Ilina, and Christoph Büdke. Anticipating skill needs for green jobs: A practical guide. ILO, Geneva, 2015.

[12] Joshua Wright. Green Jobs, Part 3: Green Pathways: A data-driven approach to defining, quantifying, and harnessing the green economy, 2009.

[13] Davide Consoli, Giovanni Marin, Alberto Marzucchi, and Francesco Vona. Do green jobs differ from non-green jobs in terms of skills and human capital? Research Policy, 45(5):1046–1060, 2016.

[14] Olga Striestska-Ilina, Christine Hofmann, Durán Haro Mercedes, and Jeon Shinyoung. Skills for Green Jobs: A Global View: Synthesis Report Based on 21 Country Studies. International Labour Office, Skills and Employability Department, Job Creation and Enterprise Development Department, Geneva, 2011.

[15] Jordan Murkin, Ruzanna Chitchyan, and David Ferguson. Goal-based automation of peer-to-peer electricity trading. In From Science to Society, pages 139–151. Springer, 2018.

[16] Yael Zekaria and Ruzanna Chitchyan. Exploring future skills shortage in the transition to localised and low-carbon energy systems. 2019.

[17] Yael Zekaria and Ruzanna Chitchyan. Qualitative study of skills needs for community energy projects. In Conference on Energy Communities for Collective Self-Consumption, 2020.

[18] Airswift and Energy Job line. The Global Energy Talent Index Report 2019, 2019.

[19] Prospering from energy revolution, url: https://www.ukri.org/innovation/industrial-strategy-challenge-fund/prospering-from-the-energy-revolution/#pagecontentid-8, Accessed 20 Sept. 2020.

—————————–

This blog is written by Cabot Institute member Dr Ruzanna Chitchyan, at the University of Bristol. Ruzanna is a senior lecturer in Software Engineering and an EPSRC fellow on Living with Environmental Change. She works on software and requirements engineering for sustainability.

Dr Ruzanna Chitchyan

The new carbon economy – transforming waste into a resource

Posted on October 16, 2018April 13, 2023 by janet.crompton

As part of Green Great Britain Week, supported by BEIS, we are posting a series of blogs throughout the week highlighting what work is going on at the University of Bristol’s Cabot Institute for the Environment to help provide up to date climate science, technology and solutions for government and industry. We will also be highlighting some of the big sustainability actions happening across the University and local community in order to do our part to mitigate the negative effects of global warming. Today our blog will look at ‘Technologies of the future: clean growth and innovation’.

On Monday 8 October 2018, the IPCC released a special report which calls upon world governments to enact policies which will limit global warming to 1.5°C compared with pre-industrial levels, failure to do so will drastically increase the probability of ecosystem collapses, extreme weather events and complete melting of Arctic sea ice. Success will require “rapid and far-reaching” actions in the way we live, move, produce and consume.

So, what comes to mind when you hear carbon dioxide – a greenhouse gas? A waste product? You’re not wrong to think that given the predicament that our planet faces, but this article is going to tell the other side of the story which you already know but is often forgotten.

For over a billion years, carbon dioxide has been trapped and transformed, almost miraculously, into an innumerable, rich and complex family of organic molecules and materials by photosynthetic organisms. Without this process, life as we know simply would not have evolved. Look around you, – I dare say that the story of carbon dioxide is weaved, one way or another into all the objects you see around you in this moment. Whether it’s the carbon atoms within the material itself – or that old fossilised sourced of carbon was used to smelt, melt or fabricate it.

The great growth and development of the last two centuries has been defined by humanity’s use of fossilised carbon which drove the first and second industrial revolutions. But now – the limitations of those very revolutions are staring us in the face and a new revolution is already underway, albeit it quietly.

An industrial revolution is said to occur when there is a step change in three forms of technology, Information, Transport and Energy. The step change that I will discuss here is the use of carbon dioxide coupled with renewable energy systems to deliver a circular carbon economy that aims to be sustainable, carbon neutral at worst and carbon negative at best. This burgeoning field comes under the name carbon capture and utilisation (CCU). CCU, represents a broad range of chemical processes that will most directly impact energy storage and generation and the production of chemical commodities including plastics and building aggregates such as limestone.

In our research we are developing catalysts made of metal nanoparticles to activate and react CO2 to form chemicals such as carbon monoxide (CO), formic acid, methanol and acetate. They be simple molecules – but they have significant industrial relevance, are made on vast scales, are energy intensive to produce, and all originate in some way from coal. The methods that we are investigating while being more technically challenging, consume just three inputs – CO2, water and an electrical current. We use a device called an electrolyser, it uses electricity to break chemical bonds and form new ones. The catalyst sits on the electrodes. At the anode, water is broken into positively charged hydrogen ions called protons and oxygen, while at the opposite electrode, the cathode, CO2 reacts with the protons, H+, to form new molecules. It sounds simple but encouraging CO2 to react is not easy, compared to most molecules, CO2 is a stubborn reactant. It needs the right environment and some energy such as heat, electricity or light to activate it to form products of higher energy content. The chemicals that can be produced by this process are industrially significant, they are used in chemical synthesis, as solvents, reactants and many other things. CO for example can be built up to form cleaner burning petroleum/diesel-like fuels, oils, lubricants and other products derived by the petrochemical industry.

Formic acid and methanol may be used to generate energy, they can be oxidised back to CO2 and H2O using a device called a fuel cell to deliver electricity efficiently without combustion. One day we could see electrically driven cars not powered by batteries or compressed hydrogen but by methanol which has a higher volumetric energy density than both batteries and hydrogen. Batteries are heavy, too short-lived and use high quantities of low abundance metals such as lithium and cobalt – meaning their supply chains could suffer critical issues in the future. While the compression of hydrogen is an energy intensive process which poses greater safety challenges.

However, there are still many hurdles to overcome. I recently went to the Joint European Summer School on Fuel Cell, Electrolyser and Battery Technologies. There I learned about the technical and economic challenges from an academic and industrial perspective. In an introductory lecture, Jens Oluf Jensen was asked “When will we run out of fossil fuels?”, his answer “Not soon enough!”. An obvious answer but there is something I wish to unpick. The task for scientists is not just to make technologies like CO2 capture, CO2 conversion and fuel cells practical – which I would argue is already the case for some renewable technological processes. The greatest challenge is to make them cost competitive with their oil-based equivalents. A gamechanger in this field will be the day that politicians enact policies which incorporate the cost to the environment in the price of energy and materials derived from fossil fuels, and even go so far as to subsidise the cost of energy and materials-based on their ability to avoid or trap carbon dioxide.

Even without such political input there is still hope as we’ve seen the cost of solar and wind drop dramatically, lower than some fossil fuel-based power sources and only with limited government support. Already there are companies springing up in the CCU sector. Companies like Climeworks and Carbon Engineering are demonstrating technology that can trap CO2 using a process known as Direct Air Capture (DAC). Carbon Engineering is going even further and developing a technology they call Air to Fuels™. They use CO2 from the air, hydrogen split from water and clean electricity to generate synthetic transportation fuels such as gasoline, diesel or jet fuel. You may question why we should need these fuels given the rise of battery powered vehicles but a better solution for fuelling heavy goods vehicles, cargo ships and long-haul flights is at the very least a decade way.

In 1975, Primo Levi wrote a story about a carbon dioxide molecule and he said in relation to photosynthesis “dear colleagues, when we learn to do likewise we will be sicut Deus [like God], and we will have also solved the problem of hunger in the world.”. The circular carbon economy may still be in its infancy, but the seeds have sprouted. Unlike the first and second industrial revolution, the 3rd industrial revolution will not be dependent on one single energy source but will be a highly interdependent network of technologies that support and complement each other in the aim of sustainability, just like nature itself.

——————————————
This blog is written by Cabot Institute member Gaël Gobaille-Shaw, University of Bristol School of Chemistry. He is currently designing new electrocatalysts for the conversion of CO2 to liquid fuels.
For updates on this work, follow @CatalysisCDT @Gael_Gobaille and @UoB_Electrochem on Twitter. Follow #GreenGB for updates on the Green Great Britain Week.

Gael Gobaille-Shaw

Read other blogs in this Green Great Britain Week series:
1. Just the tip of the iceberg: Climate research at the Bristol Glaciology Centre
2. Monitoring greenhouse gas emissions: Now more important than ever?
3. Digital future of renewable energy
4. The new carbon economy – transforming waste into a resource
5. Systems thinking: 5 ways to be a more sustainable university
6. Local students + local communities = action on the local environment

Monitoring greenhouse gas emissions: Now more important than ever?

Posted on October 15, 2018April 13, 2023 by janet.crompton

As part of Green Great Britain Week, supported by BEIS, we are posting a series of blogs throughout the week highlighting what work is going on at the University of Bristol’s Cabot Institute for the Environment to help provide up to date climate science, technology and solutions for government and industry. We will also be highlighting some of the big sustainability actions happening across the University and local community in order to do our part to mitigate the negative effects of global warming. Today our blog will look at ‘Explaining the latest science on climate change’.

The IPCC report

On 8 October 2018 the Intergovernmental Panel on Climate Change (IPCC) [1] published their special report on Global Warming of 1.5 ˚C. As little as 24 hours after the report had been published, the results of the report were already receiving extensive global coverage in the media, with BBC News describing the report as the “final call”. The BBC News article also explicitly mentions that this is “the most extensive warning yet on the risks of rising global temperatures. Their dramatic report on keeping that rise under 1.5 ˚C states that the world is now completely off track, heading instead towards 3 ˚C. Staying below 1.5 ˚C will require ‘rapid, far-reaching and unprecedented changes in all aspects of society’ [2].”

Reading the report has quite honestly been somewhat overwhelming but also necessary to understand exactly what we are in for. And as much as I understand the difficulty one might face either with the technical terms of the report or even the volume of information, I would really encourage you to give it a read. This special report covers a wide range of subjects from oceans, ice and flooding to crops, health and economy. However, if you do find that the chapters themselves are too lengthy or difficult, there is an amazing interactive, and very easy way that will help you explore the impacts of a 1.5 ˚C, 2 ˚C and beyond on Carbon Brief’s website.

There are two distinct parts in the IPCC special report. The full technical report that consists of 5 chapters and a short summary for policy makers (SPM). The SPM clearly states that “Estimated anthropogenic global warming matches the level of observed warming to within ±20 %” which translates into ‘almost 100 % of the warming is the result of human activity’ [3] [4].

We know for a fact that human activity is warming the planet

One outcome of this “human activity” that we often discuss is the emission of greenhouse gases (GHGs). Through various types of activities, whether that is agriculture, deforestation or burning fossil fuels, GHGs are emitted to the atmosphere. Without going too much into the chemistry and physics, what these GHGs do is change the mixing ratios within the atmosphere, resulting in greater absorbance of infrared radiation. And it is this change in the composition of our atmosphere that we refer to as the manmade greenhouse gas effect which also leads to the warming described in the IPCC report. But far more than the warming effect itself, global warming has all sorts of impacts most of which you can explore through the interactive link above.

Greenhouse gases and a long history of monitoring

Some of the ‘usual suspects’ in the discussion of GHG emissions are carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) (often described as the ‘major’ greenhouse gases [5]). However, an often-overlooked set of halogenated greenhouse gases are playing an increasingly large role in anthropogenic driven climate change. Gases like perfluorocarbons (PFCs) and hydrofluorocarbons (HFCs) are compounds that are emitted through some form of human activity. In the case of PFCs for example, the GHGs CF4 and C2F6 are two of the most volatile and long-lived gases monitored under the Kyoto protocol [6] and they are both primarily emitted through or during industrial processes. In contrast, HFCs are used widely as coolants in refrigerators and air-conditioning units, as blowing agents in foam manufacture and propellants in aerosols. They were originally introduced to replace ozone-depleting gases such as chlorofluorocarbons (CFCs), but like their predecessors, are potent greenhouse gases. Given the long lifetime of many of these halogenated gases, current emissions will influence the climate system for decades to come.

In order to monitor the accumulation of these gases in atmosphere, high-precision measurements are required. Through projects such as the Advanced Global Atmospheric Gases Experiment (AGAGE) [7] (figure 1 [8]) that has been measuring the composition of the global atmosphere continuously since 1978 and the National Oceanic and Atmospheric Administration’s Earth System Research Laboratory Global Monitoring Division, scientists have tracked the atmospheric concentrations of climate forcing gases from as far back as 1950s [9].

Figure 1: The AGAGE network

The Atmospheric Chemistry Research Group (ACRG) Chemistry Department, University of Bristol

The ACRG carries out research in the UK and worldwide in collaboration with other atmospheric chemistry research centres, universities and third parties. In the UK, the ACRG runs the UK Deriving Emissions linked to Climate Change network (DECC) [10], funded by the Department for Business, Energy and Industrial Strategy (BEIS) to measure atmospheric GHG and ozone depleting substances over the UK. These measurements are used in elaborate mathematical models to create top-down emission estimates for the UK and verify the UK GHG inventories submitted to the United Nations Framework Convention for Climate Change (UNFCCC) as part of the Kyoto protocol. Worldwide, the group is involved in the AGAGE network, monitoring global background levels of a wide range of GHGs. The ACRG runs 2 of the 9 global background stations under the AGAGE programme. One of these is the Mace Head station (Figure 2) on the west coast of Ireland, which is ideally placed for resolving northern hemispheric baseline air amongst European pollution events. The other AGAGE research station managed by the ACRG is the site at Ragged Point, Barbados. This site just north of the tropics, sits on the eastern edge of the island of Barbados and is directly exposed to the Atlantic. The researchers in ACRG study a variety of GHGs and a very large range of topics from maintaining instrument suites to ensuring the quality of the resulting data so that it can be used in modelling studies.

Figure 2: The Mace Head Station (Credit: Dr Kieran Stanley)

Why are measuring stations and networks like AGAGE so valuable and more important than ever?

The answer to this question is straightforward. Without measurement stations and their underlying networks, we would have very few means [11] by which to measure the accumulation of GHGs in the global atmosphere, and consequently no way of evaluating their emissions without relying on statistics from the industries that emit them. The current IPCC report is underpinned by such measurements, which allow scientists to estimate the impact of anthropogenic activity on past, present and future climates.

From Mauna Loa and its 60 -year record of atmospheric CO2 [12], to unexpected growth in emissions of banned substances such as CFC – 11 [13] and monitoring the accumulation of extremely long-lived greenhouse gases in the global atmosphere, atmospheric measurements stations have been our inside man when it comes to keeping track of what is happening in our atmosphere and to what extent human activities are altering its composition.

Perhaps now more than ever, in the light of the IPCC report, we can appreciate the importance of the data that have been collected over decades but also, the efforts of those who have been directly or indirectly involved in this kind of work. Continuing and expanding the measurement networks for these gases is and will be even more vital for a continued understanding of global and regional GHG emission trends.

References

[1] http://www.ipcc.ch/
[2] https://www.bbc.co.uk/news/science-environment-45775309
[3] http://report.ipcc.ch/sr15/pdf/sr15_spm_final.pdf
[4] https://www.carbonbrief.org/analysis-why-scientists-think-100-of-global-warming-is-due-to-humans
[5] https://www.c2es.org/content/main-greenhouse-gases/
[6] https://www.atmos-chem-phys.net/10/5145/2010/acp-10-5145-2010.pdf
[7] https://agage.mit.edu/
[8] https://agage.mit.edu/
[9] https://www.esrl.noaa.gov/gmd/about/aboutgmd.html
[10] http://www.bristol.ac.uk/chemistry/research/acrg/current/decc.html
[11] https://www.co2.earth/co2-ice-core-data
[12] https://www.co2.earth/daily-co2
[13] https://www.theguardian.com/environment/2018/may/16/mysterious-rise-in-banned-ozone-destroying-chemical-shocks-scientists

—————————-
This blog is written by Cabot Institute members Eleni Michalopoulou, Dr Dan Say, Dr Kieran Stanley and Professor Simon O’Doherty from the University of Bristol’s School of Chemistry.

Dan Say

Eleni Michalopoulou

Just the tip of the iceberg: Climate research at the Bristol Glaciology Centre

Posted on October 15, 2018April 13, 2023 by janet.crompton

As part of Green Great Britain Week, supported by BEIS, we are posting a series of blogs throughout the week highlighting what work is going on at the University of Bristol’s Cabot Institute for the Environment to help provide up to date climate science, technology and solutions for government and industry. We will also be highlighting some of the big sustainability actions happening across the University and local community in order to do our part to mitigate the negative effects of global warming. Today our blog will look at ‘Explaining the latest science on climate change’.

Last week the Intergovernmental Panel on Climate Change (IPCC) released its special report on the impact of global warming of 1.5˚C. Professor Tony Payne – Head of the University of Bristol’s School of Geographical Sciences and Bristol Glaciology Centre (BGC) member – is one of the lead authors on the report, which highlights the increased threats of a 2˚C versus 1.5˚C warmer world. The report also lays out the mitigation pathways that must be taken if we are to meet the challenge of keeping global warming to 1.5˚C above pre-industrial levels.

The core of the report is a synthesis of over 6000 scientific papers detailing our current understanding of the climate system, and here at the BGC our research is focused on the role of the cryosphere in that system. The cryosphere, which refers to all the snow, ice and permafrost on the planet, is changing rapidly under global warming, and understanding how it will continue to evolve is critical for predicting our future climate. This is primarily due to the positive feedback loops in which it is involved, whereby a small change in conditions sets off a sequence of processes that reinforce and amplify the initial change. Despite the name, in the context of our current climate these positive feedback loops are almost always bad news and are responsible for some of the “tipping points” that could lead to runaway changes in the climate system.

I hope this post will give you a quick tour of just some of the research being carried out by scientists at the BGC, studying the way in which mountain glaciers, sea ice and the two great ice sheets of Antarctica and Greenland are responding to and influencing our changing climate.

Ice sheets

My own research examines ice flow at the margins of Antarctica. The Antarctic ice sheet is fringed by floating ice shelves, fed by large glaciers and ice streams that flow from the heart of the ice sheet towards the coast (see Figure 1). These ice shelves can provide forces that resist the glaciers that flow into them, reducing their speed and the amount of ice that enters the ocean. Crucially, once ice flows off the land and begins to float it causes the sea level to rise. My work is in modelling the interaction between ice shelves and the rest of the ice sheet to better quantify the role that ice shelves have in restraining ice loss from the continent. This will help to reduce the uncertainty in our predictions of future sea level rise, as the thinning and collapse of Antarctic ice shelves that we have seen in recent decades looks set to continue.

Figure 1: Schematic of the Antarctic ice sheet grounding line. Image credit: Bethan Davies, www.AntarcticGlaciers.org

To model ice flow in Antarctica with any success it is crucial to know the exact location of the point at which the ice sheet begins to float, called the ‘grounding line’. Research on this within the BGC is being done by Dr Geoffrey Dawson and Professor Jonathan Bamber, using data from the European Space Agency’s CryoSat-2 satellite. Their method determines the location of the grounding line by measuring the rise and fall of the floating ice shelves under the influence of ocean tides. Recently published work from this project has improved our knowledge of the grounding line location near the Echelmeyer ice stream in West Antarctica and this method is currently being rolled out across the rest of the ice sheet [1].

In the Northern Hemisphere, the Black and Bloom project led by Professor Martyn Tranter is studying ice algae on the second largest ice mass on Earth, the Greenland Ice Sheet (GrIS). The large, dark regions that appear on the GrIS in the summer are, in part, down to blooms of algae growing in the presence of meltwater on the ice sheet (see Figure 2). This bloom is darker than the surrounding ice surface and so reduces the albedo (a measure, between 0 and 1, of a surface’s reflectivity). A reduced ice sheet albedo means more of the sun’s energy is absorbed and the surface becomes warmer, which produces more meltwater, and more algae, leading to more energy absorption in a classic example of a positive feedback loop. The aim of the project, a partnership between biologists and glaciologists within the BGC, is to take measurements of algal growth and to incorporate their effect on albedo into climate models. A recent paper from the group, led by Dr Chris Williamson, revealed the abundance and species of microbial life that are growing on the GrIS [2], and this summer the team returned to the field to extend their work to more northerly regions of the ice sheet.

Figure 2: Bags of surface ice collected on the Greenland Ice Sheet showing the change in albedo with (from left to right) low, medium and high amounts of algae present.

Sea ice

Moving from land-based ice and into the ocean, Arctic sea ice is also being studied within the BGC. Regions of the Arctic have warmed at over 3 times the global average during the last century and there has consequently been a dramatic decline in the amount of sea ice that survives the summer melt season. The minimum, summer Arctic sea ice extent is currently declining at 13.2% per decade. Predicting the future of Arctic sea ice is critical for understanding global climate change due to the presence of another positive feedback loop: reduced summer sea ice replaces the white, high albedo ice surface with the darker, low albedo, ocean surface. This means that more solar energy is absorbed, raising surface temperatures and increasing ice melt, leading to more exposed ocean and further warming.

Dr Jack Landy has used remote sensing data from satellites, including CryoSat-2 and ICESat, to measure the roughness of Arctic sea ice and to model the impact that changing roughness has on albedo (see Figure 3). The roughness of the sea ice controls the size of the meltwater ponds that can form on the surface. With less sea ice lasting through multiple summer melt seasons, the trend is for Arctic sea ice to become smoother, allowing larger and larger ponds to form which, again, have a lower albedo than the ice surface they sit on, creating yet another positive feedback loop [3].

Figure 3: Panels a and b are predictions for summer (June to August) Arctic sea ice albedo based upon ice roughness observations made in March of 2005 and 2007 respectively. Panels c and d show the actual, observed summer albedo in those years. Image credit: Dr Jack Landy [3].

Mountain glaciers

A third element of the cryosphere studied at the BGC are glaciers in high mountain regions such as the Andes and the Himalayas. Led by Professor Jemma Wadham, the new Director of the Cabot Institute, this work focuses on the biology and chemistry of the meltwater produced from these glaciers. This summer a team of postgraduate researchers from the BGC – Rory Burford, Sarah Tingey and Guillaume Lamarche-Gagnon – travelled to the Himalayas in partnership with Jawaharlal Nehru University, New Delhi, to collect meltwater samples from the streams emanating from the Chhota Shigri glacier. These streams eventually flow into the Indus river, a vital water source for agriculture and industry in Pakistan. It is therefore crucial to understand how the quality of this water source might change in a warmer climate. Mercury, for example, is precipitated out of the atmosphere by snowfall and can collect and become concentrated within these high mountain glaciers. In the shorter term, if these glaciers continue to melt more rapidly, larger amounts of mercury will be released into the environment and will impact the quality of water that supports millions of people. On longer time scales, the retreat and reduction in volume of the Himalayan glaciers will reduce the amount of water supplied to communities downstream, with huge implications for water security in the region.

Figure 4: Photo from Himalayan fieldwork. Image credit: Guillaume Lamarche-Gagnon

Outlook

This is just the tip of the BGC research iceberg, with field data from this summer currently being pored over and new questions being developed. This work will hopefully inform the upcoming IPCC special report on the oceans and cryosphere (due in 2019), which is set to be another significant chance to assess and share our understanding of the ice on our planet and what it means for the challenges we have set for ourselves in tackling climate change.

References

[1] Dawson, G. J., & Bamber, J. L. (2017). Antarctic grounding line mapping from CryoSat‐2 radar altimetry. Geophysical Research Letters, 44, 11,886–11,893. https://doi.org/10.1002/2017GL075589

[2] Williamson, C. J., Anesio, A. M., Cook, J., Tedstone, A., Poniecka, E., Holland, A., Fagan, D., Tranter, M., & Yallop, M. L. (2018). ‘Ice algal bloom development on the surface of the Greenland Ice Sheet’. FEMS Microbiology Ecology, 94,3. https://doi.org/10.1093/femsec/fiy025

[3] Landy, J. C., J. K. Ehn, and D. G. Barber (2015). Albedo feedback enhanced by smoother Arctic sea ice. Geophysical Research Letters, 42, 10,714–10,720. https://doi.org/10.1002/2015GL066712

——————————–
This blog was written by Cabot Institute member Tom Mitcham. He is a PhD student in the School of Geographical Sciences at the University of Bristol and is studying the ice dynamics of Antarctic ice shelves and their tributary glaciers.

Tom Mitcham