Tag: Nepal

Cooking with electricity in Nepal

Posted on by janet.crompton

PhD student Will Clements tells us how switching from cooking with biomass to cooking with electricity is saving time and saving lives in Nepal.

Sustainable Development Goal 7 calls for affordable reliable access to modern energy. However, around 3 billion people still use biomass for cooking. Smoky kitchens – indoor air pollution due to biomass cooking emissions – account for the premature deaths of around 4 million people every year. The burden of firewood collection almost always falls on women and girls, who must often travel long distances exposed to the risk of physical and sexual violence. The gravity of the problem is clear.

Wood stove in a household in Simli, a remote rural community in western Nepal. Credit: KAPEG/PEEDA

Electric cooking is a safe, clean alternative which reduces greenhouse gas emissions and frees up time so that women and girls can work, study and spend more time doing what they want.

In Nepal, many off-grid rural communities are powered by micro-hydropower (MHP) mini-grids, which are capable of providing electricity to hundreds or thousands of households, but often operate close to full capacity at peak times and are subject to brownouts and blackouts.

A project to investigate electric cooking in Nepali mini-grids was implemented in the summer of 2018 by a collaboration between Kathmandu Alternative Power and Energy Group (KAPEG), People Energy and Environment Development Association (PEEDA) and the University of Bristol in a rural village called Simli in Western Nepal. Data on what, when and how ten families cooked was recorded for a month, at first with their wood-burning stoves, and then with electric hobs after they had received training on how to use them.

A typical MHP plant in the remote village of Ektappa, Ilam in Nepal. Credit: Sam Williamson

When cooked with firewood, a typical meal of dal and rice required an average of 12 kWh of energy for five people, which is around the energy consumption of a typical kettle if used continuously for six hours! On the other hand, when cooked on the induction hobs this figure was just 0.5 kWh, around a third of the energy consumed when you have a hot shower for 10 minutes.

However, even at this high efficiency, there was insufficient spare power in the mini-grid for all the participants to cook at the same time, so they experienced power cuts which led to undercooked food and hungry families.

Many participants reverted to their wood stoves when the electricity supply failed them, and this with only ten of 450 households in the village trying to cook with electricity. The project highlighted the key challenge – how can hundreds of families cook with electricity on mini-grids with limited power?

In April 2019, the £39.8 million DFID funded Modern Energy Cooking Services (MECS) programme launched. The MECS Challenge Fund supported the Nepal and Bristol collaboration to investigate off-grid MHP cooking in Nepal further.

A study participant using a pressure cooker on an induction hob. Credit: KAPEG/PEEDA

A study participant using a pressure cooker on an induction hob. Credit: KAPEG/PEEDA
The project expands on the previous project by refining data collection methods to obtain high quality data on both Nepali cooking practices and MHP behaviour, understanding and assessing the potential and effect of electric cooking on Nepali MHP mini-grids, and using the collected data to investigate how batteries could be used to enable the cooking load to be averaged throughout the day so that many more families can cook with electricity on limited power grids.

MHP differs greatly from solar PV and wind power in that it produces constant power throughout the day and night, providing an unexplored prospect for electric cooking. Furthermore, this 24/7 nature of MHP means that there is a lot of unused energy generated during the night and off-peak periods which could be used for cooking, if it could be stored. Therefore, battery-powered cooking is at the forefront of this project.

Testing induction hobs in the MHP powerhouse. Credit: KAPEG/PEEDA

Collected data will be used to facilitate a design methodology for a battery electric cooking system for future projects, evaluating size, location and distribution of storage, as well as required changes to the mini-grid infrastructure.

Furthermore, a battery cooking laboratory is being set up in the PEEDA office in Kathmandu to investigate the technical challenges of cooking Nepali meals from batteries.

The baseline phase – where participants’ usual cooking is recorded for two weeks – is already complete and preparations for the transition phase are underway where electric stoves are given to participants and they are trained on how to cook with them.

We will be heading to Kathmandu to help with the preparations, and the team will shortly begin the next phase in Tari, Solukhumbu, Eastern Nepal.

The project will continue the journey towards enabling widespread adoption of electric cooking in Nepali MHP mini-grids, the wider Nepali national grid and grids of all sizes across the world.

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This blog is written by Will Clements and has been republished from the Faculty of Engineering blog. View the original blog. Will studied Engineering Design at Bristol University and, after volunteering with Balloon Ventures as part of the International Citizen Service, returned for a PhD with the Electrical Energy Management Research Group supervised by Caboteer Dr Sam Williamson. Will is working to enable widespread adoption of electric cooking in developing communities, focusing on mini-grids in Nepal.

The opinions expressed in this blog are those of the author and do not necessarily reflect the official policy or position of UKAid.

Will Clements

 

Three history lessons to help reduce damage from earthquakes

Posted on by janet.crompton

Earthquakes don’t kill people,’ the saying goes. ‘Buildings do.’
There is truth in the adage: the majority of deaths during and just after earthquakes are due to the collapse of buildings. But the violence of great catastrophes is not confined to collapsed walls and falling roofs. Earthquakes also have broader effects on people, and the environments we live in.

The United Nations Economic and Social Commission for Asia and the Pacific (ESCAP)’s second Disaster Resilience Week starts in Bangkok on 26 August 2019. Practitioners and researchers have achieved great progress in reducing disaster risk over the past few decades, but we must do more to save lives and protect livelihoods.

Can history help?

Building against disaster

Buildings are a good, practical place to start.

Material cultures offer paths to resilience. A major example is traditional building styles that reduce the threat from seismic shaking. A building is not only a compilation of bricks and stones, but a social element that reflects the cultural life of a community. This is the powerful point made by the Kathmandu-based NGO, National Society for Earthquake Technology (NSET), in a recent report on traditional Nepalese building styles.

NSET, and others working in the field, have identified features of traditional building styles that limit damage during shaking. For example, diagonal struts distribute the load of a roof and limit damage during earthquake shaking.

Historic building with diagonal struts at Patan Durbar Square, Kathmandu, Nepal. Photo: Daniel Haines, 2017

This is important because parts of falling buildings often kill people.

Nearby, in the Himalayan kingdom of Bhutan, the royal government is investigating the earthquake-resistant features of traditional rammed-earth buildings.

An old (c. 400 years?) rammed-earth residential building near Paro, Bhutan. Photo: Daniel Haines, 2017

In fact, seismically-appropriate building styles have evolved along similar lines across a huge Eurasian arc of tectonic unrest, from Italy to Kashmir.

But in most countries, population pressure and the use of cheap, unreinforced concrete construction in growing towns and cities has crowded out traditional construction methods.

Reducing disaster risk always means weighing costs in the present against potential protection in the future. Recovering or encouraging traditional methods is potentially cheaper than enforcing modern seismic engineering.

Long-term health impacts

Focusing only on buildings, though, neglects other important aspects of large earthquakes. These shocks do not only shake buildings down, but can dramatically re-shape landscapes by causing huge landslides, changing the level of water in rivers and leading to flooding.

History shows that these changes can hurt people for months or years after the rubble of buildings have been cleared and reconstruction has begun.

For example, a giant (8.4 Mw) earthquake struck northeast India in 1897. Its epicentre was near Shillong, in the borderlands between British India and China. Luckily, the quake happened in the afternoon, so most people were out of doors. The official death toll – the number of deaths that the colonial government attributed directly to the earthquake – was around 1,500.

Yet officials also thought the poor health conditions that followed the earthquake and the substantial floods that it caused were largely responsible for a major cholera epidemic which killed 33,000 people in the Brahmaputra Valley during the same year. That is twice as many as the previous year.

From the available evidence, it is not yet clear how directly the earthquake and the cholera deaths were linked, but other examples saw similar scenarios. In 1934, another major (8.0 Mw) quake devastated parts of Nepal and North India.

This time, the official death toll in India was around 7,500, but again many more people died from related health complications over the following years. In one district in northern Bihar province, an average of 55,000 people died of fever every year over the next decade. In other areas, malaria was unusually prevalent over the same period.

Government reports held secondary effects of the earthquake responsible for the high death rate.
Events that happened long ago therefore demonstrate the complexity of earthquakes’ impacts, even on the relatively straightforward question mortality. Studying them highlights the need to focus present-day disaster responses on long-term health implications.

Of course, this says nothing of earthquakes’ less concrete, but very important, impacts on social structures, community life, governance or the economy.

History in action

In some cases, historical researchers are contributing directly to initiatives to reduce risk from natural disasters.

Hurricane Katrina showed in 2005 that low-lying New Orleans is terribly vulnerable to storm surge and flooding. Craig Colten, a historical geographer at Louisiana State University, is working with a team of scientists to find solutions by raising the height of the ground in parts of the city while adding forested wetlands on its north shore. Colten is studying analogous historical efforts in other American cities – flood-control measures in nineteenth-century Chicago and responses to hurricanes in Galveston, Texas, around 1900 – as well as examining previous proposals for creating buffers between New Orleans and the sea.

These historical examples provide evidence of what works and what does not. They also highlight the politics of decision-making that help determine whether local communities will support landscape engineering projects.

The international frameworks governing disaster risk reduction such as the Sendai Framework for Disaster Risk Reduction and the Sustainable Development Goals understandably focus on the present, not the past. Historians need to join the conversation to show practitioners that lessons from the past can help build resilience in the future.

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This blog is written by Cabot Institute member Dr Daniel Haines, an environmental historian at the University of Bristol.

Dr Daniel Haines

 

 

Micro Hydro manufacturing in Nepal: A visit to Nepal Yantra Shala Energy

Posted on by janet.crompton
Topaz Maitland with a micro hydro turbine

For nine months I am working at an NGO called People, Energy and Environment Development Association (PEEDA), in Kathmandu, Nepal. PEEDA is an NGO dedicated to improving the livelihoods of communities, particularly the poor, by collective utilization of renewable energy resources, while ensuring due care for the environment.

My primary project is the design of a micro hydro Turgo Turbine, a small turbine which is not commonly used in Nepal. The project aims to investigate this turbine, and its potential for us in Nepal.

Nepal Yantrashala Energy (NYSE) is one of the partners on this project. NYSE is a manufacturing company specialising in micro hydro systems and I went to visit their workshop to learn about how they operate.

Micro Hydro and NYSE

At NYSE, they manufacture Pelton, Crossflow and Propeller turbines. If a client comes to them with the required head (height over which the water will drop) and flow rate, NYSE can manufacture an appropriate turbine. Every turbine is unique to the site it will be installed into.

Rough cast of a  Pelton runner cup, alongside finished cups

 

A Pelton turbine runner

 

Crossflow runners are made using strips of pipe as blades and machined runner plates to hold the blades
A Crossflow turbine runner

The aim of this project is to develop a design for a Turgo turbine (an example turgo turbine system pictured below), so that NYSE might be able to manufacture one for any given head and flow. This means that engineers such as myself need to understand how our new optimised design will operate over a range of flows and heads.

Micro Hydro in Nepal

Nepal is second only to Brazil in term of hydropower potential (1). Despite this, crippling underdevelopment and a mixture of geographical, political and economical factors leave the country lacking the resources to exploit and develop this potential (1).

Dr. Suman Pradhan, Project Coordinator at NYSE, told us that the first ever Crossflow Turbine was installed in Nepal in 1961. His father was actually one of those involved in the project. Ironically, today Nepal has to import or buy the designs for such Crossflow turbines from abroad.

Universities in Nepal do have turbine testing facilities, but funding for PhDs and other hydropower research is still heavily dependent upon foreign investment. A key area of opportunity for Nepal is the development of such research facilities. With so much hydropower potential, good work could be done to improve the performance of hydropower to suit demand and manufacturers within Nepal.

Dr. Suman hopes that this new Turgo Turbine design, alongside other designs he is trying to obtain, may widen the hydropower options available and manufacturable in Nepal.

References

1) Sovacool, B. K., Dhakal, S., Gippner, O. & Bambawale, M. J., 2013. Peeling the Energy Pickle: Expert Perceptions on Overcoming Nepal’s Energy Crisis. South Asia: Journal of South Asian Studies.

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This blog was written by Topaz Maitland, a University of Bristol Engineering Design Student on 3rd year industry placement.

My work experience: Designing a renewable energy turbine in Nepal

Posted on by janet.crompton

PEEDA is an NGO aiming to help off-grid communities in Nepal develop sustainably, primarily by introducing renewable energy sources that are owned and managed by the community.

Projects vary widely, and all funding comes from grants – that’s why there’s only six full-time staff at the office in Kathmandu, Nepal’s capital. Over the years various projects have been in partnership with the University of Bristol: that’s how I ended up working at PEEDA for my assessed year in industry. As part of the Engineering Design Degree, all students undertake a year of work experience in their third year.

Project work

My primary project for the first few months concerns the design of a pico-hydro Turgo Turbine, a small turbine which is not commonly used in Nepal despite its potential. Currently, one turbine has been imported from China and one turbine is being developed at the University of Bristol. These will be compared in the testing lab at Kathmandu University, and the final design will be manufactured in Nepal and introduced to a pilot site.

Pico-hydro Turgo Turbine

I will have the opportunity to assist with all stages of the design, working closely with the University of Bristol, the Turbine Testing Lab, and the manufacturers.

Most excitingly, I will be able to go on site visits for the project and for other projects which will involve haphazard bus journeys on winding roads to remote, beautiful areas of Nepal.

What is Kathmandu like?

The walk to work is always interesting. I may see as many as three wandering cows which are considered sacred by Hindu culture. My walk takes me past a large Hindu temple where there is always music playing and ladies in colorful saris sell flowers and fruit outside its gates.

It’s monsoon season, and after the daily downpour the mountains are visible in every direction just beyond the city.

It’s a busy, lively, polluted capital city but the people are extremely friendly and welcoming.

On my first day, my boss came to pick me up but couldn’t find the way (there are no street signs or house numbers, only vague area names). I handed the phone to the lady in the closest shop so that she could explain to him in Nepali. Every day when I walk past her little shop, she always waves hello to me.

I have been here for almost two weeks now and I have not spotted a single, functioning traffic light. My work colleagues tell me they can count all the working traffic lights in the Kathmandu Valley on two hands.

Overall, it’s mad and wonderful.
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This blog was written by Topaz Maitland, a University of Bristol Engineering Design Student on 3rd year industry placement.

Rural energy access: A global challenge

Posted on by janet.crompton
Image credit: Amanda Woodman-Hardy

 

Energy affects all Sustainable Development Goals (SDGs)

A statement made at the beginning of a rural energy access session at the Global Challenges Symposium on 12 April 2018.  To give some context for those who aren’t aware, the SDGs are a universal call to action to end poverty, protect the planet and ensure that all people enjoy peace and prosperity (see UNDP). As the goals are interconnected – tackling affordable and clean energy will mean also tackling the issues associated with the other goals.

During the session led by Dr Sam Williamson, held in Bristol and co-organised by the University of Bristol’s Cabot Institute for the Environment, four issues were discussed with Nepal as a case study:

  1. How does a lack of energy access impact rural lives?
  2. How can technology enable access to modern sustainable energy?
  3. What are the key economic and policy interventions to ensure successful rural energy access projects?
  4. What is the social impact of having access to energy in rural communities?

I felt incredibly lucky to be in the same room as the invited guests from Nepal: Biraj Gautum (Chief Executive Officer at PEEDA); Giri Raj Lamichhane (Head Teacher of Dhawa School, Central Nepal); Sushila Lamichhane Adhikari (Regional Director, Learning Planet, Central Nepal); Muhan Maskey (Policy and Institutional Strengthening Expert, Renewable Energy for Rural Livelihoods Programme, Alternative Energy Promotion Centre, Government of Nepal); and Ramesh Maskey (Associate Dean, School of Engineering, Kathmandu University).  Listening to them speak, it was clear that the Nepalese have come through such adversity (including the 2015 earthquakes – more on this below) and have survived without access to energy like we know it in the Western world.  They are incredibly resilient and wonderful people. I was certainly in awe of them. Here I summarise their thoughts and hopefully provide you with a new knowledge of real rural lives affected by a lack of access to energy.

1. How does a lack of energy access impact rural lives?

Hearing from Sushila it was clear that a lack of energy access affects rural lives in ways I could not have imagined – cooking is not possible unless using indoor stoves which cause lots of pollution and health issues especially in women and children.  The burning of firewood, cow dung and kerosene on these stoves is used for lighting and cooking.  Can you imagine breathing in the fumes from kerosene whilst sat cooking indoors?  What is also true is that it is mainly women and children who are affected by indoor air pollution and as a result suffer many negative health effects.  It is clear that more research needs to be done to customise the cooking technology for Nepal and other areas so that it moves away from indoor stoves.  Interestingly, a member of the audience from Ghana mentioned that the electricity there can be so unreliable that people don’t always want to invest in electric cookers, they’d rather go out and collect firewood for their stoves.  Unfortunately rural Nepalese villages cannot get electricity when they need it for cooking or lighting so many are in a similar situation.
Things we take for granted in the UK – like using our mobile phones, using social media and getting search engines to answer our burning questions in life (#firstworldproblems!) – are limited in Nepal.  Access to communications like the internet and to the news is one of the most valuable things to come out of having access to energy.
Apparently the government of Nepal say giving access is one part of the energy problem, the other part of the problem is transformational access.  I.e. not just providing access to power but making sure it is provided everywhere, that it is clean and sustainable and that there is a support network in place to maintain it.  There is a lot of work to be done globally to address this issue.

I didn’t get chance to interact much with my mum when I was growing up as she was out early in the morning collecting firewood so wasn’t there when I woke up and was busy cooking in the evening.

One of the things you forget about lack of energy access is how it affects the social side of people’s lives.  The quote above was given by Biraj (as seen in the picture above, stood up).  It is common for women to spend four hours collecting firewood for their stoves so they are on when the children wake. I can’t even imagine getting up four hours early every single day to do this, let alone spend an hour collecting 20 litres of water and hiking it up a steep mountain every time I need water for cooking, washing and drinking.  After hearing this I am in awe of rural Nepalese women.  They are superhuman to me, pushing the boundaries of what a woman does for her family.  I am embarrassed that I have so many luxuries in my life resulting from having access to energy, whenever I require it.  I just need a plug and a socket.  It is time for us in the Western world to help support areas without access to energy, we have a duty to families the world over.

2. How can technology enable access to modern sustainable energy?

The market is very small in Nepal for research and development in new energy technology. It is cheaper to get technology from China. There is a real lack of finance, knowledge and government support which means that rural Nepalese have not been able to fully exploit the natural resources available to them for sustainable energy e.g. through installing hydro-power. There is also the problem that to the average rural person in Nepal, lifting water which can be used for drinking, cooking, washing and chores, is a more important focus for development than energy access.  It seems a catch-22, having energy access would actually improve water lifting from source up to areas of need in the Nepalese mountains, since a lot of water pumps require energy to run.

Another great challenge is to make Nepalese energy technology for rural areas easy to maintain and robust.  Remote areas are often hard to get to and it could be a long time before anyone could come and fix any issues and obviously the cost of doing so may be prohibitive.  Therefore technology needs to be simple and locals need to be trained in maintenance.  It was also suggested in the room that tech should be developed so that it can be fixed remotely if needed. It is also important for researchers to check new energy technology is actually working after they have developed and installed it in rural areas.

3. What are the key economic and policy interventions to ensure successful rural energy access projects?

It was good to hear during this session that the energy grid in Nepal is starting to approach the rural areas of Nepal which means that it is possible for the micro-hydro-power that currently exists in rural areas to be injected into the grid and payouts can be made to rural people who own them. However a lack of available funds means the rural Nepalese cannot build micro-hydro-power plants. Most micro-hydro-power plants are instead run by the government, whole communities or private individuals and there is a policy imbalance between government-owned power and community-owned power in Nepal.

These energy inequalities seemed to be echoed by a delegate from Ghana who said that some wealthy people in Ghana are able to get enough power from solar power to not have to rely on the governments unreliable electricity. They can sell their energy back to the grid and get richer in the process, causing further inequality in energy access.

4. What is the social impact of having access to energy in rural communities?

As mentioned earlier, there is a big social impact of not having access to energy in rural areas of Nepal. By having access it means that cooking is easier and not having to collect fire wood means time is freed for maintaining gardens to produce your own food. Three to four hours a day can be saved from not having to collect firewood which can improve women’s social lives and involvement in their communities.

As is the case in most societies, you will always get people who are resistent to change. In Nepal it was said that there may be some Nepali men who may not want women to have extra time available to them (from not collecting firewood) and may want them to stick to traditional roles instead.

Having access to energy can revolutionise rural lives without destroying traditional roles.  A Somali delegate said that energy is expensive but available in rural Somalia. Mobile phone access means nomads can find for e.g. the price of a goat and where the nearest one is so they don’t waste time and physical energy trekking to find one. Phones can be charged in the cities. There is also micro-insurance available in Somalia (I had not heard of it either!) being used by nomads with mobile phones to protect for example, against the impact of drought on food availability. A novel idea, being used currently and shown to work.  It is a system which could be copied and replicated in other rural areas lacking energy access.  It was clear that there is a lot of scope for African nations and Nepal to learn best practice from each other in regards to rural access to energy.

The 2015 earthquakes – and energy

It was asked of the Nepalese visitors, what role did energy play in the 2015 earthquakes in Nepal?  Their answers were grim…villages were flattened, there was no power supply, no place to cook, and it was difficult to contact relatives who were far away and may have also been affected by the quakes. Micro-hydro-power plants were destroyed and the national grid was down. There was a governmental dilemma as to what to do – whether to revive micro-hydro-power plants or extend the national grid? As it happened the national grid was a first priority and it is being rebuilt with a view to extend it.

Throughout all of this adversity, the resilience and positivity of the Nepalese visitors really shone through when they said that all the families, communities and pets came together in one space (shelter) regardless of wealth or who they were and that this was a great experience to come out of the earthquake. The earthquake also forced Nepal to become more self-sufficient in energy post-recovery and they are installing more renewables as a result.

Damaged house in Chaurikharka – by Sumita Roy Dutta – Own work, CC BY-SA 4.0

Academics can research and write about rural energy access issues, but attending this Symposium showed that there is much we can learn from people who are actually living day in day out with these issues.  We need to collaborate and bring minds and experiences together to solve the issues around the Sustainable Development Goals.  I am happy to say that the Symposium was a great step in doing this and we hope that there will be many relationships and research interests developed from this Symposium that can apply for funding from the Global Challenges Research Fund to further research, and to improve and save lives globally.  Watch this space!

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This blog was written by Cabot Institute Coordinator Amanda Woodman-Hardy @Enviro_Mand.  You can find out more about the Global Challenges Symposium on the official website.  You can read more about reliable and sustainable micro-hydro-power in Nepal in a blog by Caboteer Joe Butchers.

Reliable and sustainable micro-hydropower in Nepal

Posted on by janet.crompton
Rolling hills of Baglung District

Despite massive potential to generate electricity through large scale hydropower, Nepal often faces power cuts and the national grid only reaches around 65% of the population. Much of the non-grid connected population live in rural, hilly and mountainous areas where grid extension is difficult and costly. Micro-hydropower plants (MHPs), which deliver up to 100kW of electrical power, extract water from rivers and use it to drive a generator before returning the water to the same river further downstream. These systems can provide electricity for lighting and productive end uses that can vastly improve people’s quality of life. Since the 1970s, micro-hydro turbines have been manufactured in Nepal. Now there are around 2,500 MHPs installed across Nepal.

When these systems break or run poorly it has an adverse effect on the quality of people’s lives. Through my research, I am hoping to find methods to improve the reliability and sustainability of MHPs in Nepal. The aim of this project was to see how well systems were maintained and interview the people who run, manage and rely on hydropower plants. I hoped that interviews would help me to understand some of the technical and social challenges that MHPs face.  Whilst in Nepal, I was working with a Nepali NGO called the People, Energy and Environment Development Association (PEEDA) who helped me to identify sites, arrange visits and conduct interviews.

A micro-hydropower plant

During my time in Nepal, Prem Karki (from PEEDA) and I visited a total of 17 sites in the neighbouring districts of Baglung and Gulmi. Prem and I spent 12 days in the field, making our way from one site to the next via bumpy jeep rides and on foot. Nepal’s hills make it suitable for hydropower but also make travelling complicated. Many of the roads we travelled on were unpaved and we saw lots of places where landslides had damaged roads during the monsoon. This showed us how difficult it is to move equipment and materials when plants are under construction. At each site, our visual assessment took us on some nerve jangling walks along canals that snaked around cliff edges to reach the intakes. Prem was responsible for interviewing the plant operator, management representative and consumer at each site so we could understand how plants were maintained, managed and their importance to beneficiaries. The local people were very helpful and interested by our work. We were often given free meals and sometimes even a place to stay!

A winding canal

I was able to collect a large amount of information which I am still processing digitally and mentally! In general, I found that micro-hydro sites are often impressive feats of engineering which can make a big impact on people’s lives by powering homes, businesses and services. In challenging environments where the only means of transportation is manpower, the hard work of local people has led to their construction. Several times, we crawled through hand chiselled caves made solely for a hydro project’s canal. The impact of the projects was clear to see. Every interview respondent said that connection to an MHP had made their life easier.

Furthermore, the micro-hydro projects are invaluable to communities as a whole; they power workplaces, shops, health posts and mobile phone masts. In the town of Burtibang, with a population of around 10,000, every home and business is powered by electricity from micro-hydro projects.

This dependence on micro-hydropower makes its reliability very important. I found the quality of maintenance very variable. Some sites were well cared for with an evident daily effort to keep the plant running as best as possible. Other plants had little evidence of regular maintenance and were showing signs of deterioration. Promisingly, I found that sites with formally trained operators tended to be better maintained than those without.

In terms of sustainability, there was a good standard of management. Energy meters allowed accurate measurement of electricity consumption so that consumers were charged according to their use. Consumers are typically given a short window in which to pay and fined for late payment. At most sites, managers said that there was sufficient money collected for the operation of the plant and maintenance costs.

To maintain reliability and sustainability, there are a range of technical and social issues that MHPs must overcome. There were common technical issues in design. Many turbines were leaking, and plant operators mentioned bearing replacement as one of the most common issues. We also saw a big variation in the quality of  installations particularly for the  civil works. It is disappointing that despite the massive effort expended in construction, some features are not fit for purpose. Socially, we found four sites where the original operator had moved abroad for work meaning the present operator had not been trained. Plant managers also commented on the increasing demand from consumers resulting in pressure on operators to deliver more power. These issues develop for social reasons but result in problems which can harm the reliability of the system.
A micro-hydropower turbine
In my further research, I intend to work closely with a turbine manufacturer during the design, manufacture and installation of a micro-hydro project. I hope to identify opportunities to implement greater quality control to prevent the occurrence of the technical issues mentioned. By working in collaboration with governmental and non-governmental organisations in Nepal, I would like to find innovative ways to ensure the longevity of MHPs. As Nepal develops, the role of micro-hydro will change but I believe it still has an important role to play in rural electrification.
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This blog is written by Cabot Institute member Joe Butchers, a PhD student from the Electrical Energy Management Group at the University of Bristol.

Joe Butchers

 

 

How Bristol geologists are contributing to international development

Posted on by janet.crompton
Guatamala.  Credit: Geology for Global Development

It maybe isn’t immediately obvious how a pet-rock-owning earth scientist is able to change the world; the basement labs in the Wills Memorial Building seem a far cry from fighting global poverty. But the study of geology and having a knowledge of the earth and its resources is actually vitally important for the success of many international development projects.

Geology for global development: what is it all about?

Geology for Global Development (GfGD) is a national organisation that wants to bring awareness to the important position that geologists are in, to be able to make a difference. And it’s not just geologists that are involved here; GfGD recognises that through the collaboration of students from a wide range of disciplines, a positive and effective contribution to development can be made. For example, earth scientists can learn a lot from anthropologists about working alongside different communities whilst being sensitive to cultural differences.

This has been the first year for the GfGD society at Bristol and so far we think it has been a great success. We have held talks covering a whole variety of topics: from volcanic hazards in Guatemala, to sustainably procuring our world’s resources, to an overview of what it is actually like to be working in aid and development as a volunteer. We aim to offer earth scientists and geographers, and anyone else who is interested, an alternative view of the opportunities available to them, aside from the more traditional career paths that often flood everybody’s radars. And alongside this, we’re also trying to raise awareness of the social science skills that are necessary for successful and sustainable development projects.

This year’s focus: volcanic hazards in Guatemala

There is one project in particular that the national GfGD group is currently working on: strengthening volcanic resilience in Guatemala. At Bristol we’re perfectly placed to contribute to this because every year students on the MSc Volcanology course spend 3 weeks studying the volcanoes in this country and learning about the agencies that are set up to monitor them. To draw on all of their experiences we held a ‘Noche de Guatemala’ to learn about this beautiful country and hear how the people living in the shadows of volcanoes are in dire need of better resources and escape routes to ensure their safety in case of eruption. As part of this event we also introduced some cultural aspects of the country as well as the current socio-political situation to put the project into context. In the discussion session that followed we saw some great suggestions for strengthening resilience, from ways to make crops that aren’t affected by volcanic eruptions, to ideas for community involvement with volcano monitoring agencies. These ideas have been passed on to the director of the national GfGD group to help inform how the project might proceed.

Noche de Guatamala at the University of Bristol. Credit: Serginio Remmelzwaal.

As well as contributing to the Guatemala project through awareness and discussions, our group has also managed to raise a fantastic £279.36 towards GfGD’s £10,000 target. This money will be used to supply improved resources to the monitoring agencies and provide educational materials for the communities affected by volcanic hazards so the risks and evacuation procedures are better understood.

Mapping for humanitarian crises

As you will probably be aware, over 9,000 miles away from the volcanoes in Guatemala, another type of natural hazard stuck violently on the 25 April this year. The 7.8 magnitude Gorkha earthquake in Nepal caused the death of more than 9,000 people and left hundreds of thousands of people homeless. We wanted to do something that could really contribute to the relief effort so we decided to hold two ‘mapathons.’ This is where a group of people get together and use OpenStreetMap with satellite images to add buildings, roads and waterways to areas where this information doesn’t exist. This work is an enormous help to aid agencies that need to know all of this information to be able to help as many people as possible.


We’ve been busy this year and can’t wait to get even more people involved next year. We’ll be back in September with more talks, mapathons and hopefully some new style events to inspire anyone interested in earth processes to think again about how their knowledge could be used to bring about positive change in the developing world.

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This blog has been written by Cabot Institute member Emily White, a postgraduate student in the School of Chemistry at the University of Bristol.

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