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| {{NAE Delivery Model Page Banner}} | | {{NAE Delivery Model Page Banner}} |
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| == Relevante Case Studies: == | | == Relevante Case Studies: == |
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− | *[[NAE Case Study: Rwanda, Sector-Wide Approach to Planning|Rwanda, Sector-Wide Approach to Planning]]<br/> | + | *[[NAE_Case_Study:_Brazil,_Luz_para_Todos_(Light_for_All)|Brazil, Luz para Todos (Light for All)]]<br/> |
| *[[NAE Case Study: South Africa, Integrated National Electrification|South Africa, Integrated National Electrification]]<br/> | | *[[NAE Case Study: South Africa, Integrated National Electrification|South Africa, Integrated National Electrification]]<br/> |
| *[[NAE Case Study: Tunisia, Low Cost Distribution Technology|Tunisia, Low Cost Distribution Technology]]<br/> | | *[[NAE Case Study: Tunisia, Low Cost Distribution Technology|Tunisia, Low Cost Distribution Technology]]<br/> |
| + | *[[NAE_Case_Study:_Vietnam,_Rapid_Grid_Expansion|Vietnam, Rapid Grid Expansion]]<br/> |
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| <br/> | | <br/> |
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− | = Grid-Connected Mini-Grids/Distributed System = | + | = Private Delivery Model = |
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| {| border="1" cellspacing="1" cellpadding="1" style="width:100%;" | | {| border="1" cellspacing="1" cellpadding="1" style="width:100%;" |
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− | | style="width: 130px; background-color: rgb(0, 154, 0);" | | + | | style="width: 130px; background-color: rgb(0, 204, 248);" | |
| '''<span style="color:#FFFFFF;"><span style="font-size: 13.6px;">Definition:</span></span>'''<br/> | | '''<span style="color:#FFFFFF;"><span style="font-size: 13.6px;">Definition:</span></span>'''<br/> |
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| | style="width: 618px;" | | | | style="width: 618px;" | |
− | '''<span><span>An electricity system connected to, but owned and/or separately managed from, the main grid system which supplies electricity to users within a local area.</span></span>''' | + | '''<span><span></span></span><span><span>Delivery of electricity access by an entity or entities none of which are owned and managed by the state, using purely private finance.</span></span><span><span></span></span>''' |
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− | Grid-connected mini-grids and distribution systems exist at a wide range of scales from those supplying a few households to systems covering entire districts or regions. The term “grid-connected mini-grid” is most frequently used to refer to systems built around their own, usually small-scale (diesel, bioenergy, biomass, hydro, solar, wind or hybrid) generation and connected to the grid to allow import and export of electricity. While these include fossil-fuel based generation, technology advances combined with environmental concerns mean that policy-makers are increasingly focussing on encouraging Renewable Energy based generation. A “distribution system” generally refers to a larger system designed primarily to distribute electricity from the main grid system to users. However distribution systems often also include their own generation and there is no clear distinction between grid-connected mini-grids and distribution systems (and the term “grid-connected mini-grid” is used to refer to both in the description below). At the larger end of the scale, distribution systems may be closely integrated into the main grid system, and the distinction between electrification through grid extension and through grid-connected distribution system expansion is one of ownership and management rather than technology.<br/>Distribution systems generally use lower voltages than for transmission, but the specific boundary between the two varies from country to country. Separate ownership and management may allow grid-connected mini-grids to use lower voltages and lower-cost technologies than the main grid, but grid system technical requirements (and standards) will generally prevent the lowest capacity “skinny-grids” from becoming grid-connected.<br/>
| + | In this model all of the organisations engaged in provision of electricity access (whether through supply of electricity itself or provision of electricity systems), as part of the National Electrification Approach being considered, are non-state-owned. This implies that all the actors along the market chain1 (Project Development, Manufacture/Generation, Distribution and Retail) are non-state entities such as private companies, cooperatives, social enterprises, community organisations or NGOs (all characterised for this purpose as “private” organisations). <br/> |
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| {| border="1" cellspacing="1" cellpadding="1" style="width:100%;" | | {| border="1" cellspacing="1" cellpadding="1" style="width:100%;" |
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− | | style="width: 10px; background-color: rgb(0, 155, 0);" | <br/> | + | | style="width: 10px; background-color: rgb(0, 204, 248);" | <br/> |
− | | style="width: 117px; background-color: rgb(51, 103, 152);" | | + | | style="width: 117px; background-color: rgb(0, 103, 0);" | |
− | <span style="color:#FFFFFF;">Delivery Model</span><br/> | + | <span style="color:#FFFFFF;">Technologies</span><br/> |
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| | style="width: 616px;" | <span style="color:#FFFFFF;"></span> | | | style="width: 616px;" | <span style="color:#FFFFFF;"></span> |
− | Grid-connected mini-grids are often privately owned, but may be publically owned or combine both in a public-private partnership. Common models include: | + | Few, if any, national grid systems have been established through a private delivery model (though in many countries privatisation has been used to transfer them into private ownership and bring in private investment). Grid-connected mini-grids and distribution systems have frequently been developed by private (non-state-owned) organisations. Where the grid system is also privately-owned, this constitutes a private model. (However, if the grid system is publically owned, and the mini-grid or distribution system uses electricity from the grid system, or the development draws on public grants, subsidies, loans, tax exemptions or guarantees, it constitutes a public-private partnership). The most frequently used models for delivery of standalone systems are private, though involvement of state-organisations along the market chain, or use of funding from grants or subsidies provided by the state, donors or international agencies, may result in private-public partnerships. |
− | | + | |
− | *mini-grids owned by a private developer connected to the main grid;<br/>
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− | *A private enterprise installing generation to meet its own power demand building a local distribution system and supply to other local users and the grid; <br/>
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− | *A municipality or other local public entity operating a grid connected distribution system;<br/>
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− | *A private company, or public-private partnership taking on operation of a section of the grid distribution system as part of a privatisation process.
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− | | style="width: 10px; background-color: rgb(0, 155, 0);" | <span style="color:#FFFFFF;"></span><br/> | + | | style="width: 10px; background-color: rgb(0, 204, 248);" | <span style="color:#FFFFFF;"></span><br/> |
| | style="width: 117px; background-color: rgb(154, 103, 0);" | | | | style="width: 117px; background-color: rgb(154, 103, 0);" | |
| <span style="color:#FFFFFF;">Legual Basis</span><br/> | | <span style="color:#FFFFFF;">Legual Basis</span><br/> |
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| | style="width: 616px;" | <span style="color:#FFFFFF;"></span> | | | style="width: 616px;" | <span style="color:#FFFFFF;"></span> |
− | Larger grid-connected mini-grids will generally require monopoly concessions (because of the substantial investment required to establish and maintain the infrastructure). Even for smaller grid-connected mini-grids, some form of licensing will almost invariably be appropriate to assure investors that they have the right to sell electricity (both to users and the grid), to ensure that technical standards for grid connection are met, and as the means of regulating prices for export and import of electricity from the grid and sale of electricity to users (see price/tariff regulation). <br/>
| + | A private delivery model calls for an explicit legal framework for any form of electrification which involves significant long-term capital investment (grid, mini-grids and potentially standalone systems which are charged for on a pay-as-you-go basis) in order to attract private finance and allow for price regulation to protect users. A concession, which offers protection from competition, will provide the greatest attraction for private financiers. Where no long-term capital investment is involved, as with standalone systems sold directly to users, it’s generally considered that no legal control (beyond that for any business) is necessary. <br/> |
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− | | style="width: 10px; background-color: rgb(0, 155, 0);" | <span style="color:#FFFFFF;"></span><br/> | + | | style="width: 10px; background-color: rgb(0, 204, 248);" | <span style="color:#FFFFFF;"></span><br/> |
| | style="width: 117px; background-color: rgb(205, 52, 0);" | | | | style="width: 117px; background-color: rgb(205, 52, 0);" | |
| <span style="color:#FFFFFF;">Price/Tariff Regulation</span><br/> | | <span style="color:#FFFFFF;">Price/Tariff Regulation</span><br/> |
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| | style="width: 616px;" | <span style="color:#FFFFFF;"></span> | | | style="width: 616px;" | <span style="color:#FFFFFF;"></span> |
− | Grid connected mini-grids rely on the sale of electricity to the grid, and import of electricity from the grid and its sale to users, as well as sale of own-generated electricity to users. Clarity on how each of these tariffs is set and regulated will be key to securing investment:
| + | Where electricity is delivered by the private sector, using purely private finance, in a competitive market with no legal or effective monopoly (eg where several solar lanterns providers are operating) price regulation may be regarded as unnecessary. However, where any form of concession has been granted (or exists in practice), price regulation would be expected to protect users. On the other side, where significant capital investment is involved private financiers are likely to require a transparent framework for price/tariff regulation, to reduce the risk of price controls being introduced in the future at below cost-recovery levels and preventing full recovery of and return on investment. |
− | | + | |
− | *Setting a standard price for purchase of electricity from the grid, or defining what category of user grid-connected mini-grids fall under, and having a transparent process for adjusting these prices (rather than leaving them to be negotiated between individual developers and the grid company) will give investors confidence;<br/>
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− | *A standard price for sale of electricity to the grid (a feed-in tariff), based for instance on the grid company’s avoided cost (as in Tanzania) or an expected average cost from a particular form of generation, will similarly reduce mini-grid development costs and risks;<br/>
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− | *Regulation of user tariffs for grid-connected mini-grids will be particularly sensitive given that the mini-grid operator may be drawing on the grid system to supply its users. Applying a uniform tariff (particularly a grid-parity) tariff is likely to offer some grid-connected mini-grids super-profits while making others uneconomic, but an approach based on a margin above the price for purchasing electricity from the grid may be appropriate (particularly where the system acts primarily as a means for distributing electricity from the grid and has little own-generation capacity). In general a cost-recovery approach, taking account of system-specific costs and any subsidies is likely to work best, and clarity and transparency of the process will be key for investors.
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− | | style="width: 10px; background-color: rgb(0, 155, 0);" | <span style="color:#FFFFFF;"></span><br/> | + | | style="width: 10px; background-color: rgb(0, 204, 248);" | <span style="color:#FFFFFF;"></span><br/> |
| | style="width: 117px; background-color: rgb(32, 56, 100);" | | | | style="width: 117px; background-color: rgb(32, 56, 100);" | |
| <span style="color:#FFFFFF;">Finance</span><br/> | | <span style="color:#FFFFFF;">Finance</span><br/> |
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| | style="width: 616px;" | <span style="color:#FFFFFF;"></span> | | | style="width: 616px;" | <span style="color:#FFFFFF;"></span> |
− | The primary financing for grid-connected mini-grids will generally align with the delivery model, with publically-owned mini-grids using public finance and privately owned mini-grids drawing on private finance. However, where incomes are lower or system costs higher, some form of public-private partnership is likely to be needed with public funding (eg through grants and subsidies) making electricity from grid-connected mini-grids affordable to users and the mini-grid systems economically sustainable.<br/>
| + | As discussed above a private delivery model must be purely privately financed (since inclusion of any public finance would cause the delivery model to be categorized as a public-private partnership). Ultimately private delivery models will rely on connection and ongoing charges, and standalone system purchases from users. For multi-user systems (grids and mini-grids) there is also likely to be some element of cross-subsidy between users.<span style="font-size: 13.6px;"> </span> |
− | | + | |
− | <span style="font-size: 13.6px;">User charges are the other main source of funding with connection charges and ongoing tariffs are used to contribute to investment, cover ongoing operating costs and support repayment and return on investment. As with any system supplying multiple users there is likely to be some element of cross-subsidy between users connected to any individual mini-grid system. Cross-subsidy between grid-connected mini-grids or between the main grid and grid-connected systems may be appropriate, particularly if a uniform tariff is applied. </span>
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− | | style="width: 10px; background-color: rgb(0, 155, 0);" | <span style="color:#FFFFFF;"></span><br/> | + | | style="width: 10px; background-color: rgb(0, 204, 248);" | <span style="color:#FFFFFF;"></span><br/> |
| | style="width: 117px; background-color: rgb(0, 100, 100);" | | | | style="width: 117px; background-color: rgb(0, 100, 100);" | |
| <span style="color:#FFFFFF;">Non-Financial Interventions</span><br/> | | <span style="color:#FFFFFF;">Non-Financial Interventions</span><br/> |
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− | National energy planning and sharing of market information are key to establishing the planned extent and timescales for grid extension and hence the scope for grid-connected mini-grids. Institutional restructuring, regulatory reform and policy and target-setting may all be required to create the framework for grid-connected mini-grids to be developed and establishment of technical standards is vital for enabling grid-connected mini-grids. Capacity building or technical assistance may be beneficial where potential developers or those (such as municipalities or user cooperatives) expected to take on responsibility distribution system operation lack capabilities. User awareness raising and demand promotion are often essential to increase revenues and make mini-grids economically sustainable. | + | National energy planning is key to establishing the optimum mix of technologies to meet electrification needs across the country, regardless of the delivery model employed. Institutional restructuring and capacity building or technical assistance may be needed where the key actors lack the capacity to undertake regulatory reform in order to establish the legal and regulatory framework for private electrification, or to set and implement technical and quality standards (needed where the private sector is delivering access through mini-grids or distribution systems to ensure safety and compatibility between systems, and to support user confidence). Awareness raising amongst users and other potential market actors and service providers, as well as training (capacity building) to develop the skilled workforce needed by new energy access businesses are likely to be particularly relevant under a private delivery model, and demand promotion may be needed to increase revenues and make electricity access economically sustainable. Private delivery models are often a means of introducing new technologies, with private sector players bringing in technologies which they believe will have advantages over existing options which will allow them to grow their businesses. (Such new technology introduction, however, brings risks, and the private sector will expect to reap additional returns to balance these risks). |
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− | == Advantages and Disadvantages (Including Level of Electricity Provided) == | + | == Advantages and Disadvantages == |
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− | Mini-grids are particularly appropriate for relatively densely populated areas with higher demand levels (with off-grid systems providing the best solutions for sparsely populated low-demand areas). For mini-grids to be grid connected they must also be relatively close to the existing grid system. In theory mini-grids should only be the best option where the costs of infrastructure to connect to the grid system out-balance the economies of scale from large-scale centralized generation and pooling demand. Connection to the main grid system allows import and export of electricity and so enables the mini-grid to access these economies of scale and (provided the grid itself is reliable) supports higher levels of quality and reliability – however it also requires construction of connection infrastructure and compliance with grid technical standards. Grid-connected mini-grids can therefore be seen primarily as an alternative to grid extension, with the main differentiator being the ownership and/or management model. If a source of energy for generation exists in an area beyond the extent of the grid, it may provide an opportunity for a mini-grid to be developed to supply local users, and connected to the grid, more quickly than the grid itself would be extended. Management of distribution by the central grid company should provide organisational economies of scale, but in practice separate ownership or management of a local distribution system may increase organisational efficiency and allow an electricity service which is more responsive to users and their needs than that provided by the national grid company.
| + | The private sector is widely seen as being more efficient, innovative flexible and nimble that the public sector and it is these virtues that it brings to energy access provision. Use of a private delivery model can be a way of bringing private sector skills and finance (both national and international), and the benefits of competition into the energy sector. Where public institutions are weak and ineffective, private delivery models may seem attractive, but it must be recognised that successful private delivery relies (particularly for grids and mini-grids) on effective public management including strong regulatory frameworks and this calls for capabilities within public institutions which they may lack. There are also elements needed for the private sector to deliver, such as workforce skills and user awareness, which individual businesses may be reluctant to provide, because of the costs involved and because in a competitive market <span style="font-size: 13.6px;">they will be unsure that they (rather than competitors) will capture the benefits and secure a return on their investment. </span><span style="font-size: 13.6px;">In addition, where modern energy access is not affordable on a purely private financed basis or public financial input is </span><span style="font-size: 13.6px;">needed to support the costs of early market development, a public-private partnership delivery model will be needed. </span><span style="font-size: 13.6px;">Grid-connected mini-grids can, in theory, provide any level of electricity supply, but in most cases if the investment is made for grid connection and associated standards are met, they provide a grid-equivalent service, meeting all household, commercial, industrial and community requirements (Tier 5). (If the grid system itself is over-stretched with inadequate generation; or insufficiently robust or poorly maintained transmission and distribution systems reliability and quality of supply may deteriorate so that while users have a physical connection, they may not in fact have reliable access to electricity (bringing the supply Tier 3 or lower). To the extent that a grid-connected mini-grid draws on electricity from the grid its construction should be coupled with development of additional centralized generation capacity to support the resulting additional demand.</span> |
− | | + | |
− | Grid-connected mini-grids can, in theory, provide any level of electricity supply, but in most cases if the investment is made for grid connection and associated standards are met, they provide a grid-equivalent service, meeting all household, commercial, industrial and community requirements (Tier 5). (If the grid system itself is over-stretched with inadequate generation; or insufficiently robust or poorly maintained transmission and distribution systems reliability and quality of supply may deteriorate so that while users have a physical connection, they may not in fact have reliable access to electricity (bringing the supply Tier 3 or lower). To the extent that a grid-connected mini-grid draws on electricity from the grid its construction should be coupled with development of additional centralized generation capacity to support the resulting additional demand. | + | |
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| *ARE. 2014. Hybrid Mini-Grids for Rural Electrification - Lessons Learned [https://ruralelec.org/sites/default/files/hybrid_mini-grids_for_rural_electrification_2014.pdf https://][https://ruralelec.org/sites/default/files/hybrid_mini-grids_for_rural_electrification_2014.pdf ruralelec.org/sites/default/files/hybrid_mini-grids_for_rural_electrification_2014.pdf] | | *ARE. 2014. Hybrid Mini-Grids for Rural Electrification - Lessons Learned [https://ruralelec.org/sites/default/files/hybrid_mini-grids_for_rural_electrification_2014.pdf https://][https://ruralelec.org/sites/default/files/hybrid_mini-grids_for_rural_electrification_2014.pdf ruralelec.org/sites/default/files/hybrid_mini-grids_for_rural_electrification_2014.pdf] |
The Review was prepared by Mary Willcox and Dean Cooper of Practical Action Consulting working with Hadley Taylor, Silvia Cabriolu-Poddu and Christina Stuart of the EU Energy Initiative Partnership Dialogue Facility (EUEIPDF) and Michael Koeberlein and Caspar Priesemann of the Energising Development Programme (EnDev). It is based on a literature review, stakeholder consultations. The categorization framework in the review tool is based on the EUEI/PDF / Practical Action publication "Building Energy Access Markets - A Value Chain Analysis of Key Energy Market Systems".
A wider range of stakeholders were consulted during its preparation and we would particularly like to thank the following for their valuable contributions and insights:
- Jeff Felten, AfDB - Marcus Wiemann and other members, ARE - Guilherme Collares Pereira, EdP - David Otieno Ochieng, EUEI-PDF - Silvia Luisa Escudero Santos Ascarza, EUEI-PDF - Nico Peterschmidt, Inensus - John Tkacik, REEEP - Khorommbi Bongwe, South Africa: Department of Energy - Rashid Ali Abdallah, African Union Commission - Nicola Bugatti, ECREEE - Getahun Moges Kifle, Ethiopian Energy Authority - Mario Merchan Andres, EUEI-PDF - Tatjana Walter-Breidenstein, EUEI-PDF - Rebecca Symington, Mlinda Foundation - Marcel Raats, RVO.NL - Nico Tyabji, Sunfunder -