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The document outlines strategies for implementing clean energy mini-grids, emphasizing the need for a balance between government control, financial subsidies, and consumer tariffs. It introduces 'fourth-generation mini-grids' as tools for rural industrialization and provides a decision-making matrix to help governments select the most appropriate delivery model based on their financial and operational capacities.

The report identifies solar hybrid mini-grids as the fastest-growing segment of the decentralized energy market, noting that they could serve approximately 111 million households in sub-Saharan Africa, Asia, and small island states by 2030. While technical costs are decreasing due to solar and battery advancements, the market faces significant hurdles including limited consumer paying capacity, ambiguous rural electrification policies, and a heavy reliance on public grants over commercial financing. The document advocates for results-based financing (RBF), flexible tariff regulations, and clear legal protections for mini-grid assets against the arrival of the main grid to attract private investment.

The project utilizes 'Down Draft Gasification' technology to convert bamboo into electricity for 1,250 households in Mentawai, Indonesia. Funded primarily by the Millennium Challenge Corporation, the project employs a business model involving a 20-year Power Purchase Agreement with the state-owned utility PLN and a 20-year Feedstock Supply Agreement with local villages. The initiative has created approximately 450 jobs and aims to expand to 50 MW of capacity across Mentawai, eastern Indonesia, and Nias within five years.

The report argues that renewable energy mini-grids are often the most cost-effective solution for rural electrification in Kenya compared to national grid extension. While Kenya's current strategy focuses on grid extension, the report suggests that integrating mini-grids into national planning could accelerate electrification, create local jobs, improve energy security, and reduce CO2 emissions by 0.14-0.48 MtCO2e per year.

The briefing discusses the risks of top-down rural electrification, citing a failed $100,000 project in India as an example of stranded assets. It proposes that community-led minigrids—designed in partnership with local leadership structures like cooperatives—can lower system costs and electricity prices by 60% from 2018 levels. RMI's Africa Energy Program is implementing the 'Sharing the Power' project over three years in sub-Saharan Africa, with potential testing sites in Nigeria and Ethiopia, to demonstrate how community involvement in planning and operation enhances financial and social sustainability.

The report identifies a significant economic opportunity for undergrid minigrids in Nigeria, potentially saving distribution companies $30–60 million annually and generating $1 billion in annual revenue for operators. It proposes four business models—operator-led, SPV-led, cooperative-led, and collaborative SPV-led—to facilitate development and suggests that proof-of-concept projects in Nigeria could enable global scaling in areas where utilities cannot fully serve customers.

The document assesses the viability of biogas in Indonesia through two pathways: a low-cost household-scale option for cooking and lighting, and a high-investment large-scale option for electricity production. While biogas offers significant GHG mitigation potential—estimated at 6.4 million tons CO2/year for small digesters and 2.6 GW for large-scale production—its development is hindered by a lack of government priority, high initial investment costs, and competing fossil fuel subsidies. The report identifies critical risks including inadequate monitoring of household systems, bureaucratic distribution, and the unreliability of biogas-fuelled power plants. It recommends that the Indonesian government formulate clear renewable energy targets, strengthen monitoring standards, and introduce favorable feed-in tariffs to incentivize private investment.

The document examines the 'viability gap' in mini-grid business models, where high capital costs and low-revenue customer bases make private investment challenging. It outlines various retail tariff approaches—ranging from uniform national tariffs to value-based pricing—and details subsidy structures, emphasizing output-based capital subsidies for distribution. The guide provides specific country examples from Africa and Asia and offers management considerations to reduce policy uncertainty and administrative overhead for developers.

The document provides an overview of energy storage solutions, highlighting the transition from traditional pumped-storage hydropower to advanced battery technologies like lithium-ion. It details the technical trade-offs between different storage methods, the economic trends driving adoption, and the regulatory environment in the U.S. aimed at increasing grid flexibility and resilience.

The report provides a gender context analysis and a strategic framework to integrate gender perspectives into the 'Green Energy Services for Communities in Rural Mali' project. It identifies that rural women in Mali face significant energy poverty and a heavy domestic workload due to reliance on biomass, which contributes to deforestation and greenhouse gas emissions. The plan proposes specific actions across three project components: capacity building for institutions, installation of solar-powered minigrids, and support for the productive use of electricity. Key objectives include improving women's participation in decision-making, providing solar equipment for income-generating activities (such as motor pumps and dryers), and establishing a gender-responsive monitoring and evaluation system with sex-disaggregated data.

The report identifies that the typical LCOE for well-run minigrids is at least $0.60 per kWh, which is too expensive for widespread use. It proposes six cost-reduction pathways—hardware standardization, demand stimulation, customer engagement, clustered project development, low-cost financing, and regulatory reform—to bring the LCOE down to $0.25 per kWh by 2020. The document also provides an investment roadmap to transition from grant funding to commercial debt.

The report introduces 'undergrid minigrids' as a solution for communities in sub-Saharan Africa that are within distribution company territories but remain underserved due to unreliable or nonexistent power. It outlines a five-step implementation pathway—awareness, business model development, pilot projects, market scaling, and benefit evaluation—to improve economics and reliability for customers, distribution companies, and developers, with a primary focus on Nigeria.

Virunga Power and Songa Energy are collaborating to develop two small hydro projects in Burundi with an estimated cost of USD 32 million. The partnership aims to leverage Virunga Power's expertise in contracting and stakeholder engagement to navigate Burundi's challenging regulatory environment and lack of private renewable energy precedents. Following these initial projects, the partners intend to establish a rural utility through a private concession involving further renewable energy projects and inter-connected distribution assets.

The Rural Energy Savings Program (RESP), administered by the USDA's Rural Utilities Service (RUS), provides approximately $100 million in zero-interest loan capital to rural electric cooperatives and utilities. These funds are intended to launch or expand energy efficiency financing programs, allowing members to implement cost-effective energy measures or switch to renewable energy systems. EESI offers guidance to utilities through a four-step application process, which includes submitting a Letter of Intent and a full application, with a deadline of September 2019.

The document highlights that rural electrification often fails when supply is expanded without addressing the barriers to end-use demand, such as high equipment costs and lack of financing. It provides evidence from historical US programs and modern sub-Saharan African minigrids to show that stimulating productive use improves system capacity utilization and financial viability. The authors recommend that development partners implement financing mechanisms, support the private sector in equipment sales, and update national policies to include end-use targets.

JUMEME is deploying a solar mini-grid model in Tanzania that combines electricity provision with local business development, specifically through its 'KeyMaker Model' which leverages local resources like tilapia fishing to create sustainable revenue streams. Following a successful pilot on Ukara Island, the company is expanding to 11 mini-grids by the end of 2018, with long-term goals of 300 mini-grids serving one million people.

The 'Luz en Casa Amazonia' program, implemented by the ACCIONA Microenergia Foundation, provides third-generation solar home systems (3GSHS) to remote, low-income communities in the Peruvian Napo basin. The model utilizes a pay-as-you-go (PAYG) system and local management committees to overcome the technical and economic barriers of national grid connection in high-ecological-value areas. Since February 2017, the pilot project has served 325 people across 61 households, reducing reliance on polluting lighting sources and lowering energy expenditures by approximately 50%. The initiative is funded by a mix of Spanish Cooperation, Peru's FONDECYT, and ACCIONA Microenergia, with goals to scale to 1,000 users and integrate 3GSHS into the Peruvian regulatory framework via a social tariff.

Between 2012 and 2016, the ACCIONA Microenergia Foundation implemented the "Luz en Casa Oaxaca" program, providing third-generation solar home systems (3GSHS) to over 7,500 households in remote areas of Oaxaca, Mexico. The initiative, structured as a public private partnership for development (PPPD), benefited more than 30,000 people with a total investment of Euro 2.5 million. The program replaced polluting energy sources like diesel generators and oil lamps with solar technology, resulting in 1,200 tons of CO2 savings and the avoidance of 13.3 tons of batteries. Technical sustainability was supported by the creation of six Supply & Service Centres (Centros Luz en Casa), three of which are managed by women.

The report identifies a 'political equilibrium' in Indonesia where the priorities of maintaining low electricity tariffs and low government subsidies outweigh the commitment to renewable energy targets. Key roadblocks include power purchase price caps (BPP) that make projects unviable, policy instability, and the dominant influence of the state-owned utility PLN and the coal industry. Experts interviewed for the study unanimously believe the 2025 target will be missed unless significant policy shifts occur.

The report examines the Nigerian minigrid sector, highlighting a potential annual revenue opportunity of ₦2.8 trillion (US$8 billion). Based on audits of ten commercial projects, it identifies best practices such as optimal site selection, community engagement, and appliance financing. While the regulatory environment is generally supportive, the report identifies barriers including high hardware costs, limited affordable finance, and inconsistent customs processes, proposing a series of stakeholder-specific actions to accelerate market growth.