Tag Archives: South Africa

Kampala CPD Course Plenary Sessions and Group Work – Days 2 – 5

The SAMSET Project hosted a continuing professional development course at Victoria University in Kampala, Uganda from the 7th – 11th November 2016. As shown in the previous post, the urban energy management issues present today in Kampala make the city an appropriate place to discuss the future of sustainable urban energy transitions.

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The Hon. Dr Chris Baryomunsi, Minister of State for Housing, addressing the opening of the CPD Course. Image: Daniel Kerr

The course was opened with an address from the Hon. Dr Chris Baryomunsi, who gave an address on the overarching issues facing urban Kampala today, include economic growth, population growth and land management. The first plenary day of the course focused on resource efficiency in energy planning and management in the urban sphere. The presentations on this day focused on the mandate that municipal officials have in the energy space (or lack thereof) and a focused discussion on the importance of data in energy planning, as well as case studies of successful initiatives in other Sub-Saharan African cities and the challenges they faced. The city of Cape Town was presented as a successful sustainable transitions case study, with the presentation from Sumaya Mohamed from the City of Cape Town Energy Authority detailing a number of the successful interventions the city has implemented, including electrification of “backyarder” properties and the development of the metropolitan bus transit system. The place of data was also highlighted through Adrian Stone from Sustainable Energy Africa’s exercise, encouraging participants to analyse and discuss data from a recent Jinja state of energy survey themselves.

The second day of the course focused on participation and key stakeholders in energy management, and methods to identify the stakeholders through network mapping, as well as to what extent these stakeholders and able (or willing) to advocate for energy transitions. Presentations on this day focused on the realities of bringing sustainable planning into action, whilst managing competing demands, with experiences and cases from the SAMSET Ghanaian partner municipalities, Awutu Senya East and Ga East, as well as from the Ugandan partner municipalities Jinja and Kasese. The closing keynote was presented by David Kasimbazi, head of the Centre for Urban Governance and Development at Victoria University, on the definitions of governance and good governance, and how this affects sustainable energy transitions in cities.

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Urban energy budgetary planning group session, led by Gamos. Image: Daniel Kerr

The third day of the course focused on the place that policy and regulatory frameworks can have in sustainable urban energy transitions. Presentations focused both on high-level policy and regulatory mechanisms, as well as technology-specific interventions in the urban sphere. The morning presentation from Vincent Agaba of the Real Estate Agents of Uganda was particularly relevant, in offering a property developer’s perspective in the sustainable transitions space, and the definitions of enabling environments in the space for developers. The afternoon saw Simon Batchelor from Gamos conduct a Netmapping exercise, a tool which the organisation has developed over many years, to identify the key stakeholders in the urban energy space, both in the partner municipalities outside Uganda and in Jinja and Kasese, as well as within the city

Day four of the course was centred around the theme of “Build(ing) Resilience”, with presentations focusing on designing and building with people, as well as ensuring resilience in design and sustainability. Key themes covered in the presentations included environmentally conscious design, with cases from local as well as international buildings, presented by Mark Olweny of Uganda Martyrs University, as well as innovative outreach initiatives for building support for sustainable energy transitions, and the use of the tourism sector as a driver of sustainable transitions, presented by Herbert Candia of Uganda Martyrs University.

The SAMSET Project will be hosting a third and final CPD course in Accra, Ghana from the 26th – 30th June 2017. More information on the course will be available both on this blog, as well as the project website, and the project Twitter.

Daniel Kerr, UCL Energy Institute

Sub Saharan African local government and SDG 7 – is there a link?

Megan Euston-Brown from SEA writes on the importance of considering local government spheres in sustainable energy development in light of the recent UN Sustainable Development Goals 7.

Building an urban energy picture for Sub Saharan Africa (SSA) is a relatively new endeavour, but policy makers would do well to take heed of the work underway [1]. The emerging picture indicates that current levels of energy consumption in the urban areas of SSA is proportionally higher than population and GDP [2]. These areas represent dense nodes of energy consumption. Africa’s population is expected to nearly double from 2010 to 2040 with over 50% of population urbanized by 2040 (AfDB 2011). Thus by 2040 it is likely that well over 50% of the energy consumed in the region will be consumed within urban areas. Strategies to address energy challenges – notably those contained within SDG 7 relating to the efficient deployment of clean energy and energy access for all – must therefore be rooted in an understanding of the end uses of energy in these localities for effective delivery.

SDGs

Analyses of the end uses of energy consumption in urban SSA generally indicate the overwhelming predominance of the transport sector. Residential and commercial sectors follow as prominent demands. Cooking, water heating, lighting and space cooling are high end use applications. Industrial sector energy consumption is of course critical to the economy, but is generally a relatively small part of the urban energy picture (either through low levels of industrialisation or energy intensive heavy industries lying outside municipal boundaries).

Spatial form and transport infrastructure are strong drivers of urban transport energy demand. Meeting the ‘low carbon’ challenge in SSA will depend on zoning and settlement patterns (functional densities), along with transport infrastructure, that enables, continues to prioritise and greatly improve, public modalities. These approaches will also build greater social inclusion and mobility.

The high share of space heating, ventilation and lighting end uses of total urban energy demand points to the significant role of the built environment in urban end use energy consumption.

These drivers of energy demand are areas that intersect strongly with local government functions and would not be addressed through a traditional supply side energy policy [3]. Understanding the local mandate in this regard will be important in meeting national and global sustainable energy targets.

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Urban highway in Ghana. Image: Dennis Mokoala)

The goal of access to modern, safe energy sources is predominantly a national supply-side concern. However, with the growth of decentralised systems (and indeed household or business unit scale systems being increasingly viable) local government may have a growing role in this area. In addition an energy services approach that supplements energy supply with services such as solar water heating, or efficiency technologies (e.g. LED lighting), may draw in local government as the traditionally mandated service delivery locus of government.

An analysis of the mandate of local government with regard to sustainable energy development across Ghana, South Africa and Uganda indicates:

  1. National constitutional objectives provide a strong mandate for sustainable development, environmental protection and energy access and local government would need to interpret their functions through this constitutional ‘lens’;
  2. Knowing the impact of a fossil fuel business-as-usual trajectory on local and global environments, local government would be constitutionally obliged to undertake their activities in a manner that supports a move towards a lower carbon energy future;
  3. Infrastructure and service delivery would need to support the national commitments to energy access for all;
  4. Decentralisation of powers and functions to local government is a principle across the three countries reviewed, but the degree of devolution of powers differs and will affect the ability of local government to proactively engage in new approaches;
  5. Existing functional areas where local government may have a strong influence in supporting national and global SDG 7 (sustainable energy) targets include: municipal facilities and operations, basic services (water, sanitation, and in some instances energy/electricity) and service infrastructure, land use planning (zoning and development planning approval processes), urban roads and public transport services and building control.
  6. Where local government has a strong service delivery function it is well placed to be a site of delivery for household energy services and to play a role in facilitating embedded generation. New technologies may mean that smaller, decentralised electricity systems offer greater resilience and cost effectiveness over large systems in the face of rapid demand growth. These emerging areas will require policy development and support.

In practice the ability of local government to respond to these mandates is constrained by the slow or partial implementation of administrative and fiscal decentralisation in the region. Political support of longer-term sustainable urban development pathways is vital. Experience in South Africa suggests that the process is dynamic and iterative: as experience, knowledge and capacity develops locally in relation to sustainable energy functions, so the national policy arena begins to engage with this. Thus, while international programmes and national policy would do well to engage local government towards meeting SDG 7, local government also needs to proactively build its own capacity to step into the space.

[1] In South Africa this work has been underway since 2003; SAMSET is pioneering such work in Ghana and in Uganda and the World Bank’s ESMAP has explored this area in Ghana, Ethiopia and Kenya. SAMSET is also undertaking a continent-wide urban energy futures model.

[2] Working Paper: An exploration of the sustainable energy mandate at the local government level in Sub-Saharan Africa, with a focus on Ghana, South Africa and Uganda. Euston-Brown, Bawakyillenuo, Ndibwambi and Agbelie (2015).

[3] Noting that not all drivers of energy demand intersect with local government functions, for example, increasing income will drive a shift to energy intensive private transport; and that population and economic growth will always be the overarching drivers of demand.

Decentralised Solar PV Acceleration in South Africa

Mark Borchers from SEA writes on a recent visit to an embedded photovoltaic generation project in a commercial building, and the insights into the industry acceleration gained there.

I recently visited a shopping mall in Tshwane, South Africa, which had installed a grid-connected solar PV system on its roof (called an ‘embedded’ generator – because it is embedded in the local distribution grid). This is not unusual in the country nowadays, and estimates are that over 1000 embedded, distributed PV systems are in existence around the country, generating 40 to 50 Megawatts during the day. But I was struck by the fact that the mall developer said that for them such installations are now a financial no-brainer – giving an 18% internal rate of return (IRR) with a 5 year payback (whereas the decision to build a mall only requires a 10% IRR). So they intend to do these installations on all malls they construct. What’s behind this trend? Largely a combination of steadily reducing international solar PV prices and consistently higher-than-inflation electricity price hikes. Also, mall and other commercial operation load profiles tend to match solar PV generation quite well, being daytime-peaking.

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While national government and most municipalities do not yet have clear regulatory frameworks to accommodate such installations, the financial case particularly in the commercial sector is such that they are happening anyway, leaving the government to catch a horse that has already bolted from the stable. A few quick calculations show that mall construction alone is likely to add 6 or more Mega-Watts (MW) of solar PV to the country’s electricity grid capacity per year. Others estimate that 500MW per year could be added from these embedded PV systems from all sectors. That’s about 1% of the total national generation capacity per year, which is significant, and something that national electricity planners will have to take seriously.

There are many benefits to these developments, but also challenges. The benefits include growth in renewable, low carbon energy, local economic development, and the fact that such generation capacity is entirely privately funded. The challenges include potential revenue loss from electricity distributors due to reduced sales, and balancing the grid power at a national level to meet the country’s demand – particularly the evening peak demand where solar PV does not contribute. There has been significant work done to show how the country can negotiate these challenges, but it does mean that well-entrenched systems have to adjust and change – which seldom happens quickly. Overall, this trend is in keeping with what is being observed internationally: that the future will move increasingly towards decentralized generation, with solar PV in particular becoming an increasingly big player. It has been suggested that the days of large power utilities are numbered. (Bloomberg.com)

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This is a development we need to keep an eye on in urban Sub-Saharan Africa as a whole. Where national grid power prices are rising fast, as is the case in many African countries, the decreasing international solar PV prices will sooner or later lead to a situation where it makes sense for businesses to install their own grid-connected rooftop systems. And this is likely to happen irrespective of what government or utilities do, or don’t do, about it. It’s an inevitable transformation of the power sector which has big implications for sustainable energy planning in urban areas.

Bring Me Sunshine…

Simon Batchelor from Gamos writes on the Witkop Solar Farm in Limpopo Province, South Africa,

At our recent network meeting in Polokwane, we visited Witkop Solar Farm which is within the municipality’s boundaries.  Witkop is a 30 megawatt solar farm built and maintained by SunEdison in the province of Limpopo of South Africa.  There is remarkably little on the internet to describe this installation although that may be a function of the ease of installing and running solar farms?  It was part of South Africa’s push to get Independent Power Producers to install renewable energy.   In an overview of the processes involved, Eberhard, Kolker & Leigland  (2014) note the difference between South Africa’s competitive tender approach and a Feed in Tariff as used in many other countries.   “South Africa occupies a central position in the global debate regarding the most effective policy instruments to accelerate and sustain private investment in renewable energy. In 2009, the government began exploring feed-in tariffs (FITs) for renewable energy, but these were later rejected in favor of competitive tenders. The resulting program, now known as the Renewable Energy Independent Power Producer Procurement Program (REIPPPP), has successfully channeled substantial private sector expertise and investment into grid-connected renewable energy in South Africa at competitive prices.”

Witkop was cited in the preferred bids in 2011 by the South African government, named in the pipeline in 2012, and construction started in 2013. As part of the terms of the financing agreement, power generated from the two facilities will be purchased by Eskom, the national utility in South Africa, through a 20-year power purchase agreement.

As part of our network meeting, SAMSET created a video ‘Aide Memoire’ of the visit, as seen below.

Why Waste That Energy?

Simon Batchelor from Gamos writes on the SAMSET team’s visit to Ekurhuleni Metropolitan Municipality’s Simmer and Jack waste-to-energy facility.

As a part of the Africities Summit 2015 (Mark Borchers’ previous blog), we visited the Simmer and Jack Landfill site to see an example of a waste to energy facility. Ekurhuleni Metropolitan Municipality is not part of the SAMSET programme of work, however they were kind enough to host a site visit to the 1MW landfill gas to electricity plant at the Simmer and Jack landfill site in Germiston, Johannesburg. This project, which was commissioned in September 2014, has reduced electricity purchases from Eskom by 7 GWh/year. The gas capture has also greatly improved local air quality and the environmental conditions of the communities living alongside or nearby the site.

The work in Germiston had already been used as a case study for the Urban Energy Support programme, funded by the South African Local Government Association (SALGA) in partnership with SAGEN. SAGEN is the South African German Energy Programme implemented by the Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ). Sustainable Energy Africa (SEA) was commissioned by GIZ to develop the case studies, in close partnership with SALGA and GIZ.

We compiled a video made up of information from the case study and video footage taken during the site visit, which we hope will enhance the original case study.

At a recent professional development meeting for DFID (UK Aid) staff (Feb 2016), the video was shown and used as a discussion point on waste by Prof D Wilson, Visiting Professor in Waste Management at Imperial College London. Many of the SAMSET municipalities are concerned with waste management and as cities grow it is an increasing problem. Perhaps more of this utilization of the gas would turn a problem into an opportunity.

Bus Rapid Transit (BRT) and Town Planning

Bernard Tembo from UCL writes on the benefits of bus rapid transit (BRT) systems and their integration into new urban planning ventures.

In our last article, Africities, 2063, and Time, Simon Batchelor and Sumaya Mahomed looked at the disjoint in project timescales used by donors, CSOs etc. and the municipalities. They elaborated the complexity process and stages that projects have to go through for them to see light of day, stating that instead of the commonly used timescales of 1-3 years, most municipalities’ projects have a longer timescale of between 10 to 30 years. This article gives an observer perspective on how town planning approvals and the Bus Rapid Transit (BRT) systems in South African cities link.

Major South African municipalities have embarked on projects that will not only improve the efficiency of the transport network but also reduce emissions from the transport system. Municipalities such as Durban, Polokwane, Johannesburg and Cape Town are implementing BRT projects.

In Polokwane for instance, this project targets the areas that are densely populated. These area is currently serviced an inefficient public transport network and private transport. The City experiences loss of man-hours during peak time because of traffic jams. The City therefore, hopes that by providing a safe, reliable and efficient public transport network, the citizens’ social and economic livelihood could be improved.

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SAMSET team members and bus rapid transit lanes on a highway in Polokwane, South Africa. Image: Hlengiwe Radebe, SEA

The City of Cape Town on the other hand has an already functioning BRT system, not covering the whole City though. One of the objectives of this system is to encourage modal shift: from private to public transport system. In one section of Cape Town called the Northern Suburbs, there a new shopping mall called Bayside Mall. This mall is serviced by a well-functioning BRT system. However, despite availability of this functional public transport system, the shopping mall has a huge private car parking space (lot).

This raises questions about how well coordinated internal City development approvals and plans are: on one hand you want to encourage use of public transport yet on the other incentivising private transport system. It is an established fact that building infrastructure such as malls have a long life span (more than 40 years). And secondly and perhaps more importantly that because without putting in place stringent measures, private transport will continue to grow in the City. As private transport offers better safety and convenience for the user. Apart for convenience and safety, private transport is perspective as a symbol of esteemed status. With an increasing middle‑class, most transport users particularly those with enough disposal increase to shop in places like Bayside Mall will most likely desire to use private transport.

It would therefore be important that the City authorities relook at requirements for new developments before they approve building plans. One such requirement would be size customer parking space in shopping malls. I am aware that they are a lot of power and political games at play with such developments (shopping malls that is) but there is always a first.

This is an interesting challenge of synchronising long term plans with short term desires. A challenge that cannot be solved using a one size fits all approach, it requires consented efforts from all stakeholders.

Africities, 2063, and Time

This is a joint blog by Simon Batchelor from Gamos and Sumaya Mahomed, Professional Officer in Renewable and Energy Efficiency in the Cape Town Municipality.

At the recent Africities conference, some of the SAMSET researchers had a conversation with municipal partners, and this article tries to capture its essence.  Their subject – timescales.

In the development sector, donors, civil society, NGOs, researchers, all tend to speak in terms of 1 to 3 years projects. While the planning processes of logical frameworks and business cases allows for an impact after the project end, there are few agencies willing to commit to more than 3 years. SAMSET is actually a four year project and in that sense quite rare.  Most of the other USES projects were 1 to 3 years. Yet within SAMSET is the aspiration to assist our partner municipalities to gather data, create a state of energy report, to model the future (based on that data), to take decisions and create a strategy for ‘energy transitions’. And, within the timeframe of the project, to take some first steps in that strategy, some actions.

In a slight contrast to this, Africities has as its slogan – “SHAPING THE FUTURE OF AFRICA WITH THE PEOPLE: THE CONTRIBUTION OF AFRICAN LOCAL AUTHORITIES TO AGENDA 2063 OF THE AFRICAN UNION.”. It is looking at 2063!  That is (nearly) a fifty year horizon. Africities knows that municipal planning, changes in infrastructure, raising the finance for those changes, takes decades not years.

SAMSET is funded by UK donors and some of the researchers come from the UK, so lets take the London Cross rail link as an example. First of all, lets remember that the essence of London Underground – the transport system that effectively keeps London working – that the essence was established in 1863 (The Metropolitan Railway, using gas-lit wooden carriages hauled by steam locomotives!). That’s nearly one hundred and fifty years ago. The cross link is a new tunnel that will join east London (the banking and business hub) to west London, and beyond. This tunnel has to go ‘in a straight line’ while at the same time missing existing underground tunnels, water mains, etc. At times it will be created just 1 metre from an existing underground structure.

So its perhaps surprising that it was apparently first mentioned in 1941, was written on a plan in 1943, serious consultations in the seventies, serious proposals in the nineties, commercial proposal in 2001, and decided on in 2005 (10 years ago) and construction started 2009. Despite the huge advances in tunnelling, it will still take another 5 years to complete.

And of course it is only one part of an ongoing dynamic change in infrastructure of one of the worlds leading cities.

So imagine now trying to raise funding for a Bus Rapid Transport system in Polokwane. The changes will require that roads be changed, new lanes created, negotiations with landowners of key areas, procurement of the equipment. It is not surprising that it has taken over 9 years since serious planning started (2006), and that it will take until 2020 before it is fully implemented, with all the associated traffic disruption of road works etc. Infrastructure in cities takes time to change.

SAMSET modelling shows what the energy consumption of a partner city might look like in 2030. It starts with a ‘business as usual’ model and then explores possible changes, assisting the partners to identify a key change that will make a good (low carbon) longer term change. In the case of Cape Town, the municipality asked for projections to 2040, as the felt 2030 was too close. The timescales in municipality minds are of 10 year, 20 year projects, not 1 to 3 year disconnected projects.

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Figure 1 Cape Town Growth in energy consumption per sector for ‘business as usual’ scenario.

And consider the energy impact of a building. A building will last 40 years or more, so if planning permission is given to an energy inefficient glass tower, the air-con commitment is there until 2063.

So municipal planning has a very long term view. Of course in a counter flow to this long view of the municipal civil servants are the politicians who have a very short term view. Politicians are often concerned with short term benefits and easy wins, so they or their party gets re-elected.  For city planners it is a difficult balance.

So when we think of energy transitions what is the right timescale? Well in a complex world we have to think of all the actors, their different needs and juggle all of them together. We do need to find early easy wins so that donors to research projects and politicians are happy enough to fund a phase two.  We do need to build capacity so that despite the movement of people from job to job, a municipality gradually gains the required skills to consult, plan and implement longer term energy transitions.  And we do need to have a long term view. Building infrastructure, even building buildings, commits a city to a particular energy path for decades not just years, and so those long term implications need to be taken into account.

Smaller African cities need sustainable energy intervention

Originally posted on The Conversation, Louise Tait from the University of Cape Town Energy Research Centre writes on sustainable urban planning and energy, and the SAMSET Project’s role in supporting sustainable energy development in developing world cities.

Africa is experiencing a massive flow of people into urban areas. This is happening in major urban centres such as Lagos, Accra and Dar es Salaam as well as in smaller and secondary cities. The pace at which this urban growth is happening inevitably puts strain on city authorities. The supply of services and developing infrastructure is vital for human and economic development.

But the evidence base to support forward planning remains scarce for most cities. In its absence, cities run the risk of infrastructural lock-ins to systems that are unable to accommodate their growth sustainably.

Cities with high concentrations of people and economic activities are major sites of energy demand. Africa contributes very little to global climate change today. But future growth must be managed sustainably. If the emissions of developing country cities increase similar to many western cities today, catastrophic climate change will be unavoidable.

The SAMSET project

Supporting African Municipalities in Sustainable Energy Transitions, or SAMSET, is a four-year project that commenced in 2013. Its aim was to address sustainable energy transitions in African cities. It provides practical planning and implementation support to municipalities to manage future energy planning in a sustainable manner.

The project involves six cities in Ghana, Uganda and South Africa. The cities were Ga East and Awutu Senya East in Ghana, Kasese and Jinja in Uganda and Cape Town and Polokwane in South Africa. Research and support organisations in each country and the UK were involved as well.

Secondary and smaller cities are the main focus for support. These cities are also experiencing massive social and economic expansions. But they typically have less capacity to cope. Despite their significance as current and future sites of energy demand, they receive much less research and funding focus.

Secondary cities such as Uganda’s Kasese traditionally lack the research or funding to make sustainable energy transitions.

Developing an evidence base to support planning

The first phase of the project involved developing an evidence base to support planning and future implementation of sustainable energy interventions. Locally relevant planning tools are essential. There are very few studies investigating and modelling the energy systems of African cities. South Africa is a notable exception.

An urban energy system refers to all the flows of different energy resources, such as petrol, diesel, electricity, wood and charcoal in a city. It records where resources are produced or imported into an area and where they are consumed in different sectors. Such information can help cities better understand which sectors are major consumers and identify inefficiencies. It also helps identify where opportunities for energy efficiency and new technologies may lie, especially those associated with improved economic and welfare effects.

Much of how we understand urban energy systems is based on cities in western and developed countries. But many cities in Africa challenge assumptions about economic development trajectories and spatial arrangements that may be implicit in energy modelling approaches which are based on developed country experiences.

SAMSET modelled the urban energy systems of each of these cities using the Long-range Energy Alternatives Planning model. It was developed by the Stockholm Environment Institute. This model records all energy consumption and production in each sector of an economy. For example the household, commercial, industrial and transport sectors are all recorded. It is a useful planning tool because it projects the growth of energy systems until 2030 under different scenarios. This helps cities understand the future impacts of different investment and planning decisions now.

For SAMSET, universities in each country undertook primary data collection on sectoral energy demand and supply. A baseline model and range of scenarios were then collaboratively developed with local research partners and municipalities.

The project aimed to develop an evidence base to serve as a tool for local decision-makers. Also for further collaborative energy strategy development and to prioritise the implementing of options for the next phases. The scenarios have therefore attempted the following:

  • Through stakeholder engagement, to take into account governance systems.
  • Existing infrastructural constraints and opportunities.
  • Aligning with other development imperatives.

Value of the process

The project has served to introduce to city and local planners the use of energy models. It also attempted to set up the foundation for future development of energy modelling exercises and its applications. Collaborating to collect data, discuss key energy issues, and identify interventions are highly valuable to local stakeholders.

The process was instrumental in generating an understanding of energy planning. For some of municipalities, this was the first time consideration has been given to energy as a municipal function.

The modelling process acts as a strategic entry point to build interest and support for the project with municipal stakeholders. It also provides a useful platform and tool to engage around long-term planning and the implications of different actions. An example is infrastructural lock-in to emissions and energy intensive growth paths.

Value of the outputs

SAMSET is making an important knowledge contribution to the dynamics of sustainable energy transitions in African cities. Such research is of course made difficult by the data scarcity typical at a sub-national level. But this is merely reflective of the lack of financial investment to date.

The local data collection processes in this project have been vital in building capacity and generating awareness around urban energy systems. Developing new data and building knowledge of urban energy transitions in the global south is critically important. It has had a strong focus on establishing a network of both north-south and south-south practitioners to support more work in this arena.

The modelling has had to account for several distinct characteristics. These include:

  • The informal economy
  • Own energy generation through diesel and gasoline generators
  • The high reliance on biomass
  • Variations in urban forms and issues such as suppressed demand for energy services.

This project has also made important methodological contributions to modelling urban energy systems in developing countries.

Waste-to-energy paradigm: Opportunities for African cities to transform their energy landscapes

Xavier Lemaire from UCL and Simon Bawakyillenuo & Innocent Agbelie from the University of Ghana ISSER recently collaborated on this post for the UrbanAfrica.net website. The original post can be found at: http://www.urbanafrica.net/urban-voices/waste-to-energy-african-cities-can-transform-their-energy-landscapes/, reproduced in full below.

The critical issue of waste management

Waste management is a critical issue for most African cities as a result of the huge generation of mountains of waste stemming from increases in urban populations over the last few decades, coupled with access to consumer goods by a fast-growing middle class. And waste generation is expected to increase rapidly in the future. City authorities are therefore faced with the challenge of managing urban waste with limited resources at their disposal.

The extent of this challenge is made clear by an Africa Review Report on Waste Management in African cities, which notes that less than half of waste is being collected, the rest being dumped in the urban landscape [1]. Accra alone generates approximately 1000 tonnes of waste per day at an annual generation rate of 3.7×104 Tons/year while the existing collection capacity can only keep up with about 55% of this amount (Fobil (2000). This means that an excess of 1.7×104 Tons/year is left to accumulate in the core areas of the city for several months [2]. In the wake of this finding, Obour (2012) described the city of Accra as almost engulfed in filth [3].

Unsustainable waste management has adverse consequences on the environment including the breeding of mosquito and related diseases, emission of obnoxious odours and methane, and flooding through choked drainage systems [4]. These waste-related problems are not uncommon in most African cities and city authorities are seeking sustainable waste-management solutions. Indeed, unraveling sustainable solutions for efficient waste management is one of the top priorities of the two municipalities in Ghana that are partners to the “Supporting Sub-Saharan Africa’s Municipalities with Sustainable Energy Transitions (SAMSET)” project.

Sustainable waste management practices

The most sustainable waste management practices are waste reduction and waste recycling as shown in Figure 1 below.

Figure 1:  Hierarchy of sustainable waste management

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Source: Adapted from Rodriguez, 2011.

Effective waste recycling ultimately leads to waste reduction. It is possible to recycle completely a waste product only when the production and marketing processes themselves have integrated the target of 100% recycling as the ultimate goal of the design of the value chain, making it possible to generate money from the recycling activity itself (and allowing the recycling activity not just being an end of chain cost).

In most African cities, little is done and far little is happening currently in the areas of waste reduction and waste recycling as waste management practices. Sadly, waste management practices in Africa can be placed in the first and second rungs from the bottom of the hierarchy of sustainable waste management (Figure 1). It has to be noted that, another waste management practice that is common in African cities is composting, that is, turning the by-products of organic waste into manure for agricultural activities. Most companies that have taken such initiatives have quit in many countries due to low patronage of such compost products. It is, however, flourishing in other countries such as Uganda and parts of South Africa, like Cape Town.

Opportunities and potentials for waste-to-energy in African Cities

Using waste to create energy is a viable option for most African cities. Waste can be incinerated to produce heat or electricity; and methane can be collected from landfills and be used to, again, generate heat or electricity.

There is high level of organic content of waste generated in most African cities. In Ghana, for example, about 66% of the total waste generated is organic, as shown in Figure 2 below.

Figure 2: Waste type and composition in Ghana

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Source: Zoomlion Ghana Limited (2013).

Any organic waste from urban and rural areas as well as industries is a resource due to its ability to degrade and release methane, which can be used for energy generation. The problems caused by solid and liquid wastes can be significantly mitigated through the adoption of environmentally-friendly waste-to-energy technologies that will allow treatment and processing of wastes before their disposal.

Waste-to-energy is a win-win endeavour. As a sustainable waste management system it produces energy that can be sold for economic gains for the producer. It also provides green jobs. While it is thought that such projects are highly technical and often require imported skilled labour and technology from developed countries, local people, especially “waste scavengers,” can be employed and use their skills. It seems unlikely that municipalities themselves or international corporations can deal with waste. Involving local entrepreneurs in the process is fundamental [5] and can be extended to entrepreneurs from informal settlements [6].

Most cities in Africa already use landfill waste disposal systems. City-owned vehicles, such as trucks, can be used for waste-to-energy projects to cut costs. The problem in most African cities, however, is waste sorting. Waste is often not sorted at the collection points hence all kinds of waste end up at the depositing site. Tying economic benefits to sorting of waste at the households level and effective education of the general public on the need for proper waste sorting can help the course of waste-to-energy in most African cities.

Prospects for waste-to-energy in Africa

All landfills generate methane, so there are many opportunities to reduce methane emissions by flaring or collecting methane for energy generation. As mentioned previously, there are two main technological options to transform waste into energy, both of which can be used to create heat or electricity: incineration or collection of methane. Often proposed by Western companies, the incineration technology can be quite costly to build, relies on imported technologies, and requires the collection of huge amount of waste from vast catchment areas. Huge catchments areas imply that there will be high costs related to logistics, while fleets of trucks could contribute to road congestion.

Production of energy from landfill requires certain technical skills, which can only be acquired through training and experience. Methane is a potent heat-trapping gas (more than 20 times stronger than carbon dioxide) and has a short atmospheric life (10 to 14 years) [7]. Therefore, reducing methane emissions from municipal solid waste landfills through a Landfill Gas project is one of the sustainable means to lessen the human impact on global climate change. In addition, a Landfill Gas project, during its operational lifetime, will capture an estimated 60 to 90 percent of the methane created by a landfill, depending on system design and effectiveness. The methane captured is converted to water and carbon dioxide when the gas is burned to produce electricity or heat.

Unfortunately, there is no one best technological fixed solution. Each municipality has to find a specific mix of options, combining the appropriate technologies with existing social agencies to be able to tackle progressively – after a series of trials, successes and errors – this problem. Indeed, there have been many trials and failed waste to energy projects in Africa. That notwithstanding, many opinion groups, private organisations, international organisations and governments in most African countries are still enthusiastic about sustainable waste management practices.

It is therefore imperative for city authorities to make strategic choices about the types of socio-technical solutions that can be implemented realistically, taking into account their financial and social long-term sustainability. This is to avoid repeats of failure of waste-to-energy projects funded by international organisations in Africa. Suffice to mention that waste management is a complex issue that must involve contributions from a variety of stakeholders from local communities to policy-makers including industries and farmers for success to prevail.

Key among the ways African cities can transform their energy landscape through waste-to-energy is political and institutional commitment. It is encouraging to note that in recent times a lot of governments in Africa are gradually embracing the Green Growth development pathway, with some having already mainstreamed Green Economy actions in their national development plans. These steps give signal great prospects for waste-to-energy development in Africa because Green Growth developmental actions entail foster economic, social and environmental development. Thus, in the not too distant future, it is envisaged that a wave of different waste-to-energy projects could spring up across African cities when emphasis is not only placed on the cost component of waste-to-energy, but both the environment and social benefits as well.

References

[1] Sixth Session of the Food Security and Sustainable Development. Africa Review Report on Waste Management – Main report, Addis Ababa, Ethiopia, 27-30 October 2009.  http://www.uneca.org/publications/africa-review-report-waste-management-main-report

[2] Fobil, J. N. (2002). Proceedings of International Symposium on Environmental Pollution Control and Waste Management 7-10 January 2002, Tunis (EPCOWM’2002), p.193-205.

[3] Obour, S.K. (2012). “Accra Sinks under Filth”. The Mirror, Saturday, September 15, 2012, pp.24.

[4] Dr Simon Bawakyillenuo and Innocent Komla Agbelie, Waste as a Resource for Energy Generation in the Ga East and Awutu Senya  East Municipalities: the Policy Discourse. University of Ghana, SAMSET project, 2014, http://samsetproject.site11.com/outputs/

[5] Un-Habitat, Note on Urbanisation Challenges, Waste Management, and Development, 12-14 February 2014, Mauritius. http://www.europarl.europa.eu/intcoop/acp/2014_mauritius/pdf/un_habitat_presentation_en.pdf

[6] Towards social inclusion and protection of informal waste pickers and recyclers – waste collection project proposal for and professional support provided to small entrepreneurs by the eThewini municipality. ENDA – IWPAR Best practices #9 www.iwpar.org

[7] Landfill Gas Energy Basics. Available at: http://www.epa.gov/methane/lmop/documents/pdfs/pdh_chapter1.pdf

Local Government’s Role in Energy Transitions is Poorly Understood

Mark Borchers, Megan Euston-Brown and Melusile Ndlovu from Sustainable Energy Africa recently contributed this post to the Urbanafrica.net Urban Voices series, analysing the role of local government in sustainable energy transitions. The original is reproduced in full below.

African local governments have an important role to play in sustainable energy transitions, yet the ability within local governments to step into this role is severely inadequate. This is problematic because municipalities, in close contact with their citizenry, are often better placed to plan and respond to energy needs in locally appropriate ways than national governments or other ‘external’ agents.

Urbanization rates in Africa are amongst the highest in the world and the municipal capacity to undertake minimum levels of urban planning and basic service delivery is severely inadequate, as acknowledged by the African Development Bank, UNHabitat and Cities Alliance.

A major challenge is that local government is poorly understood by those trying to be agents of change, and research often remains at a superficial level. Even work which specifically aims at going beyond the usual ‘vague policy suggestions,’ to use a phrase from the ACC’s Edgar Pieterse, struggles to get to grips with many key local government dynamics, and the number of outputs produced by consultants or researchers with local government as an intended target audience, which have little or no purchase, is worrying.

Non-profit Sustainable Energy Africa’s experience of working in partnership with local government in South Africa for 17 years to support with sustainable energy transitions affirms this. The organization has provided capacity to local government in areas where government did not have experience, staff or systems, and in an environment where officials are often preoccupied with short-term service delivery and other urgent goals displace longer-term considerations such as those linked to climate change mitigation.

Sustainable Energy Africa has spent years supporting several municipalities in the development of energy and climate change strategies. However, after official approval of the first few strategies, it started becoming apparent that the momentum that had led to strategy finalization rarely continued into implementation. For example, the first set of strategies developed in the municipalities of Cape Town, Sol Plaatjie, Ekurhuleni, Buffalo City and Tshwane struggled to gain significant traction.

What followed was many years of supportive partnership with municipalities: participating in meetings, undertaking research in areas where there were concerns, developing specific motivations for political or other vested interests as they arose, engaging with city treasury to raise their awareness and explore workable revenue futures, exchanging lessons and sharing success stories amongst municipalities, and raising the profile of local issues in national fora and strategies.

Sustainable Energy Africa’s experience has demonstrated that the work involved in getting to the point of having an officially approved energy and climate change strategy is but a small fraction of what is required for any real change to gain traction. Unfortunately, the dynamics that impede efforts to bring the strategy to fruition are often poorly understood by development support institutions (including donors) and researchers. Guidelines and resource documents on urban transport policy development, climate proofing of informal settlements, and energy efficiency financing, to give a few examples, are often of little use to local government. Research focusing on dynamics affecting service delivery and assessments of renewable energy options for urban areas, for example, seldom talk to the constraints and pressures that senior officials encounter on a day-to-day basis, and thus tend to have little impact.

It is not surprising that adequately detailed understanding of local government is lacking, precisely because it is difficult to gain useful insight into this world from normal development support programmes, which may last a few years and often involve imported expertise, or from research projects, even if they are methodologically well considered. To illustrate, about 10 years ago work undertaken by development support organisations and researchers pointed to solar water heaters being economically, socially and environmentally beneficial for application across South Africa’s urban areas. Cost and technical feasibility studies were undertaken, presentations made, guidelines produced, case studies circulated, and workshops held. Introducing solar water heaters was considered by many to be a ‘no brainer’, and was a standard feature of all municipal energy strategies developed at the time. Yet over the years little changed. Within municipalities there were staff capacity barriers, institutional location uncertainties, debates around mandates, political ambivalence, and a good dose of plain old resistance to change.

When one of the most progressive South African municipalities finally developed a detailed solar water heater rollout programme, further obstacles had to be negotiated: it ran foul of the city treasury (it threatened electricity sales and thus revenue), electricity department (impact on the load profile, technical issues and revenue), procurement department (selection of different equipment service providers), housing department (roof strength issues of some government housing), and legal department (ownership of equipment and tendering processes), which further delayed progress by several years.

Heaters
Solar water heaters on low-income housing in South Africa. Image: SEA

Other sustainability interventions such as energy efficiency in buildings, renewable electricity generation and densification (an important enabler of sustainable transport options) all face their own mix of complexities, most of which are difficult to know from the outside.

Change in government institutions seldom happens fast. When those hoping to be agents of change better understand the complexities of municipal functioning, transformation can be more effectively facilitated. Supporting local government often means entering an uncomfortable, messy, non-linear space but it can be more effectively done than often happens. In many ways, what is required is an inversion of the usual approach: support agents or researchers need to respond to the specific, not the general; listen, not advise; seek to be of service rather than pursue a preconceived agenda. The focus of the lens needs to shift well beyond general observations on ‘local institutional capacity’, ‘reform of regulatory systems’ or ‘policy impasses’. What is needed is a much more detailed, nuanced, and longer-term understanding and set of relationships for more impactful engagement.

Through applying these approaches, Sustainable Energy Africa’s work in South Africa has helped local government move from being considered irrelevant to the energy field 10 years ago to being regarded as critical agents to a sustainable energy future today.

A recent independent review of Sustainable Energy Africa’s local government support programme points to its success. It is described as, amongst others, having a clear role in the development of nation-wide city energy data, in facilitating energy efficiency programmes in different sectors in several municipalities, in promoting renewable energy (often rooftop solar PV) in several major cities, and in institutionalizing sustainable energy and climate change issues within municipalities.

Drawing on the above experience, the SAMSET project is working with African municipalities at a detailed level in partnership with universities and development organisations in Africa and the UK, and six municipalities in Uganda, Ghana and South Africa. This collaboration walks the full process of systemic change with the municipalities, and focuses the lens of research and implementation support on this inadequately understood, yet critical, arena – the detailed dynamics in the belly of the local government beast.