Vinita Rodrigues, Vivek Mustafa Gilani, Saranya Acharya, Maya Seshagiri
Extended abstract 3-240-26 Urban Poor Women in India, living in heat-trapping buildings in conditions of cooling-energy poverty (i.e. inadequate energy access for operating active cooling appliances and no access to passive cooling solutions) are inequitably impacted by climate-crisis induced extreme heat which causes health issues stemming from homes being too hot to sleep in before midnight and social reproduction roles which require them to wake up hours before other family members. Paradoxically, women are under-represented in the ‘green economy’ response to extreme heat (eg. cool roof programmes). The paper presents insights from, and the way forward from the field-test phase of a Women's Heat Action Cooperative (WEHAC) programme underway in an informal settlement in Chennai, India to enhance access to passive cooling solutions co-created with the community. The WEHAC offers cooling products and services to residents who pay an affordable estimated monthly-installments (EMI) to the WEHAC to maintain a revolving fund that serves as future investment capital. The paper presents learnings related to structure of financial/social incentives for initial mobilization of women’s entrepreneurial interests, outcomes of testing solutions to underwrite risk of residents not paying EMIs, and elucidates the process of establishing an ecosystem of trades, material supply chains to foster a locally-owned decentralized response to cooling energy poverty. It also presents results of an ongoing effort to establish a One-Stop-Shop ( technical and finance assistance facility) for WEHACs where finance and in-kind assistance is derived from a multitude of sources (e.g. microfinance institutions, impact investment) and through repurposing municipal development schemes. The paper presents results from the applied policy research work of policy ‘hacking’ (i.e reinterpreting, repurposing) of existing policies (eg. heat action plans, women’s empowerment programs) and unlocking financing from under-subscribed schemes. Download presentation.
Purpose: Nigeria sits on massive renewable potential, yet clean power barely trickles into the national grid. This paper digs into why the transition keeps stalling despite the Electricity Act 2023 handing states the keys to their own power markets. Rather than celebrating the new legal framework, it examines the commercial and technical friction that is blocking developers from connecting to the grid. Methodology: This study used a qualitative policy review to examine Nigeria's renewable energy regulatory framework by reviewing key legal documents alongside relevant academic and industry publications. The selected materials, published mainly between 2023 and 2026, were examined through a structured narrative analysis to identify policy gaps affecting renewable energy policy readiness. Findings: The findings show that Nigeria has made important legal and policy progress, but implementation remains weak. The electricity market is fragmented, and renewable-energy developers continue to face challenges such as unclear federal-state coordination, limited grid capacity and flexibility, non-cost-reflective tariffs, and insufficient use of smart-grid, storage, and circular-economy technologies. The preliminary assessment produced a readiness score of 2.33 out of 6, suggesting that while policy ambition is evident, the conditions needed for effective market delivery are still inadequate. Unique Contribution to Theory, Practice and Policy: The six-pillar framework gives researchers a concrete diagnostic for measuring transition readiness beyond checkbox compliance. For industry players, it highlights exactly where projects get stuck between permitting chaos and unbankable contracts. For policymakers, the paper makes the case for binding federal-state coordination treaties, mandatory storage and digital standards, aggressive mini-grid scaling, and placing consumer affordability at the absolute center of market design rather than treating it as an afterthought.
Omojola Awogbemi, S. A. Aasa, Oluwaseun O. Martins, Anthony O. Onokwai
Abstract The worrisome economic, environmental, and energy security implications of the continuous use of fossil-based sources as road transport fuel have made Nigeria consider sustainable alternatives. With the country’s abundant natural gas reserves and growing climate commitments, compressed natural gas (CNG) presents a viable pathway for decarbonizing road transport, curbing urban air pollution, and ensuring energy security. The current study examines the adoption, deployment, and integration of CNG into Nigeria’s road transport ecosystem. The study reviews the CNG resources and infrastructure, impact and achievements, and highlights the challenges of CNG deployment as a road transport fuel, case studies from other jurisdictions, suggestions for improvement, and future research perspectives. Though reasonable grounds have been covered, overcoming the technological and infrastructure gaps, economic and financial inadequacy, health, environmental, and safety issues, ensuring social and stakeholder acceptance, and instituting appropriate policy and regulatory frameworks are fundamental to ensure scalability and energy security. Nigeria can leverage case studies from other jurisdictions to leapfrog and accelerate nationwide deployment, mitigate risks, and guarantee a low-carbon road transport future for Nigeria. More sensitization campaigns, investment and fiscal incentive models, price reduction strategies, and rapid upgrade of CNG infrastructure across the country to ensure wide acceptability, affordability, and nationwide deployment. Future research should integrate lifecycle and techno-economic analysis, smart metering, blockchain tracking, spatial modeling, macroeconomic impact, and process optimization to guide stakeholders in designing a resilient, inclusive, and scalable CNG transport framework for Nigeria.
As of 2024, 730 million people worldwide lacked electricity access, roughly eight in ten of them in sub-Saharan Africa. Closing this gap requires engineering approaches suited to the technical, financial, and institutional constraints of low-resource settings, not conventional grid extension alone. This paper reviews four engineering pathways expanding renewable energy access in developing countries — decentralized mini-grids, IoT-enabled pay-as-you-go (PAYG) solar financing, frugal engineering, and AI-assisted smart-grid digitalization — using case evidence from Kenya, India, and East Africa's PAYG sector.
Climate change presents intensifying environmental, economic, and social challenges, particularly for developing countries such as India, where climate vulnerability intersects with pressing developmental priorities including energy access, poverty alleviation, and sustainable urbanization. While global frameworks such as the United Nations Framework Convention on Climate Change (UNFCCC) and the Paris Agreement establish mitigation and adaptation targets, their effectiveness depends significantly on decentralized and community-driven implementation. In this context, community-based climate solutions (CBCS) have emerged as an important bridge between national policy commitments and localized climate action. This paper examines India’s renewable energy transition and electric mobility initiatives as examples of decentralized climate governance. Renewable energy programmes implemented by the Ministry of New and Renewable Energy, especially rooftop solar expansion and the PM-KUSUM scheme, promote distributed power generation, solar irrigation, and farmer-centric energy systems. These interventions contribute not only to carbon emission reduction but also to rural income diversification, agricultural resilience, and enhanced energy security. By encouraging local ownership and participatory models, such programmes integrate climate mitigation with inclusive development objectives. Complementing these initiatives, electric mobility policies advanced by the Ministry of Heavy Industries, including the PM E-Drive scheme, support the adoption of electric two-wheelers, three-wheelers, and public transport systems. These measures reduce urban air pollution, lower fossil fuel dependence, and create green employment opportunities within emerging clean energy value chains. The diffusion of electric mobility further demonstrates how local entrepreneurship, cooperatives, and community participation can accelerate low-carbon transitions. By situating these initiatives within a community-based governance framework, the study argues that decentralized renewable energy systems and electric mobility expansion reinforce climate mitigation and adaptation while promoting socio-economic empowerment. The analysis concludes that India’s evolving climate strategy reflects a gradual shift toward participatory and multi-level governance models. Strengthening institutional coordination, expanding climate finance access, and enhancing local capacity-building remain essential to sustaining and scaling community-based climate action in alignment with global climate commitments.
Renewable energy in Africa has gained increasing attention as a strategic pathway to achieving sustainable development, energy security, and economic transformation. A structured search of peer-reviewed studies was conducted using Web of Science, Scopus, and ProQuest. Fifteen empirical studies met the strict PRISMA inclusion criteria for detailed systematic synthesis, while additional high-quality review articles, book chapters, and policy reports were incorporated to strengthen contextual interpretation of renewable energy deployment trends across Africa. This systematic review synthesizes empirical evidence on renewable energy deployment across the continent, focusing on trends, challenges, and opportunities. Africa is endowed with abundant solar, wind, hydropower, geothermal, and biomass resources, yet actual utilization remains uneven and limited, with solar and wind experiencing the most rapid growth in recent years. Hydropower continues to dominate installed capacity, while geothermal and emerging technologies remain largely underdeveloped. Persistent barriers to deployment include inadequate grid infrastructure, limited access to finance, policy and regulatory inconsistencies, institutional capacity constraints, and political instability, particularly in rural and decentralized systems. Despite these challenges, opportunities exist in the form of declining technology costs, growing private and international investment, expansion of decentralized energy systems, and regional cooperation initiatives. Strengthening policy implementation, improving governance coordination, investing in infrastructure and human capital, and promoting innovative financing mechanisms are critical to accelerating Africa’s renewable energy transition.
P. A. Adeoye, Joseph Babatola Ayodele, Fomonyuy Shinyuy, Clement Dossou-Yovo · 6 authors
Nigeria faces one of Sub-Saharan Africa’s most severe energy poverty crises, with over 85 million people lacking electricity access, a challenge that disproportionately affects more than 2.5 million Internally Displaced Persons (IDPs) in conflict-affected North-East Nigeria. Despite national electrification efforts, humanitarian settlements remain largely excluded from reliable power infrastructure. This study evaluates the technical feasibility, spatial energy gaps, and policy barriers associated with deploying decentralized solar and hybrid solar–wind systems in IDP settlements across six North-Eastern states. A mixed-method geospatial framework was applied, integrating Visible Infrared Imaging Radiometer Suite (VIIRS) nighttime light data, Geo-Referenced Infrastructure and Demographic Data for Development (GRID<sup>3</sup>) infrastructure datasets, and Distributed Renewable Energy (DRE) demand data using Python and Quantum Geographic Information System (QGIS). Nighttime light intensity was classified into no-access (≤100 nW/cm²/sr), limited-access (101–1000 nW/cm²/sr), and full-access (>1000 nW/cm²/sr) categories. Results identified 670 IDP camps across 112 Local Government Areas (LGAs), with high concentrations in Bauchi (264 camps), Borno (194), and Gombe (140), predominantly located within limited-access zones. Solar resource assessment shows strong regional potential (4.2–4.6 kWh/m²/day Global Horizontal Irradiation (GHI)), while average wind speeds of 2–4 m/s support small-scale hybrid applications. A representative camp load analysis (3.72 kWh/day) demonstrates that a 0.99 kWp solar array combined with a 3.2 kWh battery and a 300 W vertical-axis wind turbine can reliably meet basic household energy needs, reducing approximately 25.88 kgCO<sub>2</sub>e per household annually. Key barriers include high upfront costs, limited financing mechanisms, weak humanitarian energy policy integration, and security-related operational risks. The study provides empirical evidence for integrating decentralized renewable energy into national electrification strategies through risk-informed planning and tailored financing models to enhance resilience, sustainability, and dignity in displacement settings.
Moses Arthur Baidoo, Wang ZhiCheng, Liu Qi, Zhou ShuMin · 6 authors
Access to reliable electricity remains a pressing challenge in Sub-Saharan Africa, particularly in rural areas where over 600 million people live without power. This paper explores the potential of decentralized solar energy systems; such as solar home systems, mini-grids, and solar-powered appliances in addressing energy access challenges across rural Sub-Saharan Africa. While these systems offer clean, reliable, and scalable alternatives to conventional grid expansion, their adoption is constrained by regulatory uncertainty, limited financing options, and local capacity gaps. Drawing on case studies from five countries, the paper examines how recent innovations -including mobile-based Pay-as-you-go (PAYG) financing, hybrid renewable systems, and improved energy storage technologies are reshaping energy access models. It also outlines policy recommendations aimed at strengthening regulatory coherence, promoting regional cooperation, and enhancing sustainability. Ultimately, the study highlights how decentralized solar solutions can contribute to long-term environmental, financial, and social resilience, with direct implications for poverty alleviation and inclusive rural development in the region.
ABSTRACT: Universal access to electricity remains one of the major structural challenges to development in sub-Saharan Africa, and particularly in the Democratic Republic of Congo (DRC), where territorial disparities and low rural electrification rates significantly hinder inclusive economic growth. Faced with the technical and financial limitations of traditional centralized grids, mini-grids and other decentralized electrification solutions are emerging as alternatives adapted to the country's geographical, demographic, and socio-economic realities. However, the development of these solutions fundamentally depends on the ability to mobilize appropriate, sustainable, and structured financing mechanisms. High initial infrastructure costs, combined with the limited repayment capacity of rural populations and a still-developing institutional environment, constitute major constraints to investment. The analysis highlights the need for a hybrid financial architecture, combining private equity, concessional debt, subsidies, and innovative financial instruments such as mezzanine debt, crowdfunding, and pay-as-you-go mechanisms. The economic sustainability of projects depends on a delicate balance between the financial viability of operators and affordable pricing for users. Business models must incorporate diversification of energy services, the integration of productive uses, and rigorous risk management (demand, exchange rate fluctuations, regulatory instability). The leverage generated by combining different funding sources strengthens investment capacity and improves project resilience. Institutionally, the regulatory framework plays a crucial role. The clarity of tariff rules, legal stability, transparency in subsidy allocation, and the effectiveness of rural electrification agencies are key factors in the sector's attractiveness to private investors. Tax and customs incentives, as well as risk guarantee mechanisms, are essential levers for reducing the cost of capital and stimulating local financial sector involvement. The study of the Congolese context reveals considerable energy potential, particularly in hydroelectric and solar power, but also persistent challenges related to access to credit, administrative complexity, and the structuring of public-private partnerships. Improving the financing of mini-grids in the DRC therefore requires an integrated approach combining regulatory reforms, institutional capacity building, and financial innovation. Ultimately, financing mini-grids is not merely a technical or budgetary issue, but a strategic challenge for energy governance and structural transformation. Establishing a coherent financial and regulatory ecosystem is essential to ensure the sustainability of projects, accelerate rural electrification, and contribute significantly to achieving the Sustainable Development Goals, particularly SDG 7 on access to reliable, affordable, and sustainable energy.
This study examines access to clean and sustainable energy in the city of Mbandaka, Democratic Republic of Congo. Using a mixed-method approach combining surveys of 150 households and semi-structured interviews, it highlights a strong dependence on traditional energy sources such as wood and charcoal, despite a growing adoption of solar energy. Results show that 30% of households already use solar energy for lighting, while 72% still rely on charcoal for cooking. The main barriers to energy transition are the high initial cost of equipment and the lack of information about clean technologies. The study concludes that the energy transition in Mbandaka is technically feasible and socially desirable but requires institutional support, inclusive financing mechanisms, and participatory governance. It advocates for a territorial approach based on decentralization and environmental education.
Energy poverty remains a critical barrier to socioeconomic development in rural Africa, where millions lack access to reliable electricity. This study explores the state of rural electrification, the consequences of dependence on traditional energy sources, and the potential of solar energy as a viable solution. Using a qualitative secondary research methodology, the study synthesizes data from scholarly articles, institutional reports, and case studies across various African nations, including Kenya, Rwanda, and Tanzania. Findings reveal that decentralized solar solutions, such as mini-grids and standalone solar home systems, offer scalable and cost effective alternatives to grid expansion. However, challenges such. Ydf as high upfront costs, weak regulatory frameworks, and limited financing mechanisms hinder widespread adoption. Innovative financing models, including pay-as-you-go (PAYG) schemes and microcredit financing, have demonstrated success in increasing energy affordability, while public-private partnerships (PPPs) have facilitated large-scale solar electrification projects. The study concludes that achieving universal energy access in rural Africa requires strengthened institutional support, policy harmonization, and increased investment in decentralized renewable energy solutions. Policy recommendations include government-led subsidy programs, tax incentives for solar enterprises, and enhanced regulatory frameworks to encourage private sector participation. This research contributes to the ongoing discourse on sustainable energy transitions by providing policy insights and strategic recommendations for accelerating rural electrification efforts in Africa.
Imoleayo Abraham Awodele, Molusiwa S. Ramabodu, Nathaniel Ayinde Olatunde, Iruka C. Anugwo
Africa is richly endowed with renewable energy resources, including solar, wind, and hydropower, yet the continent faces a significant energy access deficit, with over 600 million people lacking reliable electricity. Traditional fossil fuel-based energy models have proven inadequate for meeting the region's growing energy demands while posing environmental and economic challenges. This study explores the need to transcend these conventional energy paradigms by accelerating the adoption of sustainable, inclusive renewable energy systems tailored to Africa's unique context. Adopting a qualitative research approach, the study employed document analysis of policy reports, scholarly literature, and energy market trends to examine the continent's renewable energy transition. Thematic analysis identified key barriers such as limited access to financing, fragmented regulatory frameworks, and insufficient technical capacity. However, the findings also highlight transformative opportunities, including decentralized energy systems for off-grid rural communities, digital innovations, and international climate finance. The study recommends empowering community-driven energy models, adopting innovative financing mechanisms such as microcredit and crowdfunding and fostering cross-sectoral collaboration. These measures will not only expand energy access but also position Africa as a leader in global climate action, environmental sustainability, and inclusive energy innovation. Keywords: Renewable Energy Transition; Decentralized Energy Systems; Sustainable Development; Africa Energy Policy.
Despite Pakistan's long-enduring chronic energy crisis, a recent surge in solar generation supplied nearly 25 % of the national electricity grid in the first quarter of 2025, broadening access and easing cost pressures. Conversely, IMF conditionality under IMF financing programs, such as tariff rebasing and a 10 % sales tax on solar imports, risk undermining these distributive gains. This study examines the interaction between solar adoption, IMF credit, and household electricity prices in shaping energy justice, using annual data from 2007 to 2024. We capture direct, mediated, and dynamic effects using time-series analysis and causal mediation models, respectively. Results show that a 1 % increase in solar generation reduces injustice by 0.142 points ( p < 0.01), with benefits most substantial in rural areas. Mediation analysis demonstrates that IMF credit alleviates injustice only when channeled through solar adoption ( β = 0.251 → SE; Sobel z = −2.47), while tariff hikes directly worsen inequality ( β = −0.399, p < 0.05) but partially induce adoption. VAR evidence reveals that price shocks immediately intensify injustice, whereas solar shocks reduce disparities gradually. Results conclude that solar energy holds great promise, but cannot single-handedly drive a just transition. Achieving equitable outcomes requires addressing policy barriers by removing regressive fiscal measures, safeguarding net-metering, dedicating IMF resources to decentralized solar projects in marginalized communities, and broadening targeted subsidies for low-income populations. A failure to implement such measures could render Pakistan's solar expansion exclusive, thereby widening inequality. • Solar deployment substantially reduces distributive energy injustice in Pakistan, with a 1 % rise in solar output lowering injustice by 0.142 points. • IMF credit enhances distributive energy justice only when directed toward solar investment. • Household electricity prices drive energy injustice: tariff hikes intensify inequality but spur limited, inequitable solar adoption. • Price shocks incur immediate and enduring distributive costs, whereas the equity benefits of solar adoption accrue gradually. • Achieving an equitable transition requires embedding distributive justice in fiscal and financing frameworks.
Rapid urbanization in Tanzania has increased municipal solid waste generation and placed growing pressure on urban waste-management systems that remain focused mainly on collection, transport, and disposal. Given the high organic fraction of municipal waste generation. This paper examines Resource recovery from municipal waste through cost-effective biogas technologies in Tanzania, focusing on policy and institutional frameworks that support or constrain decentralized municipal organic waste-to-biogas systems that use appropriate standard procedures. The findings show that Tanzania has a broad policy framework for environmental protection, renewable energy, private-sector participation, and resource recovery, but this foundation has not been well translated into practice. Key constraints include fragmented mandates, limited biogas-specific standards, weak organic waste segregation, inadequate financing mechanisms, and insufficient formal inclusion of communities and informal waste actors. The paper argues that improving decentralized biogas implementation requires converting existing policy commitments into enforceable, financed, and locally coordinated municipal resource-recovery systems
Kingsley Imandojemu, Aliyu Akorede Rufai, Felix Orole, Romanus Osabohien
ABSTRACT Balancing energy security, energy equity, and environmental sustainability has become increasingly challenging as economies pursue low‐carbon growth amid climate risk and persistent disparities in access to modern energy. Although entrepreneurship is widely recognized as a driver of innovation, its role in addressing the energy trilemma remains contested. This study examines whether, and under what conditions, entrepreneurship contributes to resolving the energy trilemma, using panel data for 64 countries from 2011 to 2022. Drawing on the World Energy Council's trilemma indices, World Bank entrepreneurship and macroeconomic indicators, and OECD‐DAC climate finance data, the analysis employs random‐effects models to capture both within‐ and between‐country variation. The results show that entrepreneurial activity is robustly associated with improved energy security and energy equity, alongside more modest gains in environmental sustainability. Innovation capacity strengthens these relationships, while foreign direct investment and climate finance exhibit uneven effects, tending to support system‐level and environmental outcomes more than inclusive access. Regulatory quality emerges as a critical enabling condition that significantly amplifies the positive impact of entrepreneurship across the energy trilemma. Overall, the findings provide cross‐country evidence that entrepreneurship functions as both an innovation conduit and a decentralizing force in energy transitions, underscoring the importance of predictable regulation and better‐targeted climate finance for access‐oriented clean energy solutions.
Persistent electricity shortages and routine load shedding have long hindered social and economic development in Pakistan, with Punjab its most populous and industrialized province bearing a disproportionate share of the burden. In recent years, however, solar power has emerged as a central pillar of provincial strategies to enhance energy security and reduce dependence on conventional, fossil-fuel-based generation. This paper examines how solar energy is contributing to Punjab’s gradual shift from chronic load shedding toward greater energy independence. Adopting a qualitative, multiple-case design, the study draws on national and provincial policy documents, secondary reports, and peer-reviewed literature. It focuses on four key sectors residential, agricultural, educational, and industrial where solar initiatives have been promoted through programs such as free solar panel schemes for low-income households, school solarization, solar irrigation systems, and industrial rooftop installations. A comparative sectoral analysis evaluates these initiatives in terms of affordability, reliability, sustainability, and scalability. The findings show that solar energy has significantly improved supply reliability for many households and institutions, reduced operating costs for some farmers and industries, and opened new avenues for decentralized generation. At the same time, coverage remains uneven, key programs are still small relative to overall need, and implementation is constrained by financing barriers, bureaucratic delays, and limited technical capacity. The paper argues that Punjab’s trajectory illustrates both the transformative potential and the persistent limitations of solar-led energy transitions in developing-country contexts. It concludes that scaling up equitable, decentralized solar adoption supported by robust provincial policies, innovative financing, and institutional reforms will be essential if solar power is to move from a complementary role to a structural driver of energy independence.
Darlington Chizema, Ramos E. Mabugu, Christelle Meniago
This study examines the effect of renewable energy consumption on energy poverty across 43 Sub-Saharan African countries from 2002 to 2021. Using a dynamic panel data approach and a two-step System GMM estimator, it addresses endogeneity concerns in energy poverty analysis. Results show energy poverty is persistent, reflecting deep institutional and infrastructural challenges. While renewable energy consumption is positively associated with energy poverty, the modest impact suggests current investments are concentrated in urban or grid-connected areas, with limited benefits for rural populations. This highlights the need for inclusive, decentralized energy strategies. Human capital emerges as a key factor in alleviating energy poverty, emphasizing the importance of integrating energy access with education and health initiatives. Conversely, GDP per capita, institutional quality, and population density show no significant effects, challenging assumptions that economic growth alone can resolve energy deprivation. The lack of a declining trend in energy poverty underscores the urgency for targeted, long-term interventions. The study advocates pro-poor energy policies, innovative financing, and multi-sectoral approaches linking energy access to broader development goals to advance Sustainable Development Goal 7 (SDG 7). Future research should explore subnational disparities and the varied impacts of renewable technologies to inform context-specific solutions.
I. K. Duah, C. K. K. Sekyere, F. Kemausuor, K. A. Amaning
This review offers a dual-staged evaluation of micro-hydropower (MHP), integrating a technical synthesis of over 150 of the most relevant papers with a bibliometric analysis of 918 peer-reviewed studies from 2014 to 2024. It provides a map of publishing trends, keyword development, and leading universities that describe global research patterns and identify research gaps in the field. Key advancements in turbine design, including impulse, reaction, low-head, and pump-as-turbine configurations, as well as the use of GIS-driven site-selection methodologies, have been synthesised. Thirteen real-world MHP initiatives are analyzed to contextualize the outcomes by examining the influence of design choices, financing strategies, and community engagement on results. Africa possesses around 25 GW of hydro energy potential, although it exhibits notably poor research output according to the findings. Context-sensitive engineering, robust governance, and adaptable implementation strategies also facilitate long-term success, extending beyond the mere adoption of technology. Overall, this study offers pragmatic recommendations for researchers, practitioners, and legislators aiming to expand MHP for sustainable rural electricity by integrating macro-level bibliometrics with micro-level design insights.
Adama Sarr, Aldo Bischi, Umberto Desideri, Cheikh Mouhamed Fadel Kébé
Achieving universal electricity access in Senegal by 2030 remains a major policy challenge due to persistent spatial disparities in infrastructure, population density, and resource availability. This study conducts a nationwide, spatially explicit assessment of least-cost electrification pathways using OnSSET. The analysis develops context-specific scenarios to plan optimal technology mixes across rural and peri‑urban areas, based on differentiated tiers of electricity access. By integrating high-resolution geospatial, demographic, and techno-economic data, the model identifies the most economically viable solutions for achieving universal access. Results indicate that grid extension is the least-cost option for approximately 93.7 % of the population, largely concentrated in peri‑urban areas with high population density and proximity to existing grid infrastructure. In contrast, solar PV mini-grids (MG PV) and stand-alone PV (SA PV) systems are optimal for 0.7 % and 5.6 % of the population, respectively, mainly in remote, sparsely populated rural settlements. The total investment required to achieve universal electricity access by 2030 is estimated at USD 269.8 million, corresponding to 116.1 MW of additional installed capacity. Beyond quantifying cost-optimal solutions, the study demonstrates the potential of open-source geospatial models like OnSSET to support transparent, data-driven planning in developing country contexts. It also highlights key policy implications, emphasizing the need for integrated national electrification strategies that combine centralized and decentralized systems to address regional disparities. Limitations of the study include uncertainties in input data quality, static demand assumptions, and the exclusion of non-technical barriers such as institutional capacity and financing constraints. Nonetheless, the findings provide a valuable decision-support basis for Senegal’s ongoing energy transition and broader Sustainable Development Goal 7 (SDG7) objectives.
Background: Yemen is facing one of the most severe energy crises in the world, exacerbated by decades of conflict. In this context, sustainable energy solutions, particularly renewable energy technologies, have emerged as a critical pathway to addressing Yemen’s energy deficit while reducing environmental impact. The country possesses significant potential for renewable energy exploitation, especially solar and wind resources, due to its geographic location and climatic conditions. Scholars, policymakers, and development agencies have examined the challenges and opportunities facing Yemen's transition to a sustainable energy future. Objectives: This review paper aims to synthesize current knowledge on sustainable energy development in Yemen, exploring the potential of solar, wind, and other renewable resources, evaluating ongoing projects and policies, and identifying barriers and opportunities for future growth. By providing a comprehensive overview, this paper seeks to contribute to the understanding of how sustainable energy can support Yemen's recovery, economic development, and long-term resilience. Methods: The current review have been studied and analysed key studies and technical reports from 2010 to 2025, including contributions from the United Nations Development Programme (UNDP), the International Renewable Energy Agency (IRENA), the World Bank, and regional academic institutions. The analysis categorizes existing literature into five thematic areas: (i) renewable energy potential assessment, (ii) energy policy and governance, (iii) investment and financing mechanisms, (iv) environmental and social impacts, and (v) capacity development and institutional strengthening. Results: Recent policy reforms, scheduled for 2024, aim to establish the Authority for Renewable Energy and Energy Efficiency. The evolution of renewable energy policy in Yemen from 2010 to 2024 shows steady growth. Financing is a key challenge in Yemen's renewable energy transformation, although limited access to international financing, coupled with political risks, has limited private sector engagement. Renewable energy brings numerous environmental and social benefits to Yemen. Research shows that solar microgrids increase household incomes by 15 – 20%. Environmental goals include reducing CO2 emissions by 40% by 2050, increasing green space, and ensuring sustainable land-use planning for solar and wind farms. Furthermore, regional comparative studies show that the cost of solar photovoltaic (PV) systems in Yemen is competitive with fossil fuel-based generation, especially when long-term maintenance and fuel import costs are taken into account. Overall, Yemen's renewable energy potential is quite promising, with solar energy leading the way due to its volume, cost-effectiveness, and ease of deployment. Wind, biomass, and geothermal resources offer additional opportunities that can diversify Yemen's energy mix, increase resilience, and promote sustainable development. Conclusion: Ambitious targets have been set to diversify Yemen's energy mix and improve efficiency, including a 15% share of renewable energy by 2025, rural solar electrification, and improved energy sector efficiency. However, achieving success in this area still requires concessional and blended financing to reduce investment risks, the promotion of modular and decentralized deployment models (mini-grids, rooftop solar panels), and the integration of renewable energy expansion into resilience and recovery planning.
As the world grapples with climate change and energy insecurity, renewable energy has emerged as a central pillar of sustainable development. However, the transition to renewables faces persistent technological, economic, policy, and social challenges. This paper explores the dual nature of renewable energy—its immense promise and its complex barriers—through global trends and India-focused case studies. By analyzing large-scale and decentralized renewable projects, including Bhadla, Pavagada, Rewa, and Kurnool solar parks, as well as microgrid initiatives in Dharnai and Indira Nagar, this study identifies strategic pathways for inclusive and resilient energy futures. The analysis reveals that integrated policies, innovative financing, community participation, and technological innovation are key to maximizing renewable energy’s transformative potential. Key words: climate change, energy, renewable.
Transitioning to renewable energy is thus a very important component of global efforts toward combating climate change, especially in emerging economies where energy demand is fast outpacing supply. Carbon markets have emerged as a vital financial mechanism for supporting renewable energy projects by enabling the trade of carbon credits. The following abstract discusses how carbon markets affect multi-dimensionally the financial flows of renewable energy in developing nations: attracting investment, reducing capital costs, driving technology innovation, and delivering decentralized energy. Through case studies from Kenya, India, and Brazil, the article illustrates how carbon markets have indeed served to mobilize such large-scale renewable projects as wind farms and solar installations that improve the lot of rural and underserved communities. Despite the promise of carbon markets, it still faces regulatory gaps, market volatility, high transaction costs, and limited participation from local stakeholders. This may spell out actionable solutions, such as the development of regional carbon trading systems, enhancement of voluntary carbon markets, blended finance models, and the integration of emerging economies into global carbon market initiatives within frameworks like those under the Paris Agreement. Carbon markets could have a real catalyzing role in the transition toward renewable energy, with accelerated rates of greenhouse gas emission reduction and sustainable development in emerging economies, if they are able to successfully address these tacked barriers.
Anis Ur Rehman, M. J. Sanjari, Rajvikram Madurai Elavarasan, Taskin Jamal
Transformation of the energy sector is necessary to meet climate targets and ensure universal access to reliable and affordable energy. Despite progress, more than 675 million people still lack electricity and 770 million face an unreliable power supply. Renewable energy now provides nearly 30 % of global electricity generation and represents approximately 17.9 % of total final energy consumption. This amount is insufficient for the 1.5 ∘ C pathway and requires a tripling of renewable capacity by 2030. Energy efficiency also lags with average annual gains of 1.6 % compared with the 4 % required for climate-aligned energy scenarios. Therefore, this paper reviews pathways toward decentralized low-carbon solutions that can accelerate global energy transformation. The review paper examines how technologies such as microgrids, virtual power plants, energy storage systems, and vehicle-to-grid (V2G) solutions are reshaping modern energy systems. It highlights that digitalization, smart grids, and sector integration are key to building flexible and consumer-focused networks. However, achieving sustainable energy access requires more than new technologies. Strong governance, fair financing, and social inclusion are equally important to ensure a just and balanced energy transition. Case studies from Asia, Africa, and Latin America show how policy, innovative financing, and regional cooperation can drive progress despite challenges such as underinvestment, fossil fuel dependency, and energy poverty. The review demonstrates that an integrated approach, combining technological innovation, financial mechanisms, and inclusive policies, can collectively build low-carbon, resilient, and equitable energy systems. • Research gaps in sustainable energy supply on technology, policy, and equity are identified. • Sustainability-aligned pathways toward decentralized low-carbon solutions are reviewed. • Governance and planning are key for sustainable energy transitions. • A comprehensive framework of technical, economic, and social insights for sustainable transition is introduced.
This critical review examines decentralised renewable energy (DRE) systems as game changers for sustainable energy access in Sub-Saharan Africa (SSA). Although rich in renewable resources, over 570 million people in rural communities lack electricity. Traditional energy models, shaped by colonial histories and marked by inefficiencies, have failed to meet the continent's diverse energy needs. DRE systems provide flexible, community-focused solutions that promote energy equity, foster economic growth, and enhance climate resilience. Using Critical Juncture Theory and the Rational Choice Model, this study examines factors influencing DRE adoption. Analyses show how DRE encourages energy democracy, local ownership, and aligns with Sustainable Development Goals, including SDG 7 (Clean Energy) and SDG 13 (Climate Action). However, these systems face obstacles like fragmented policies, insufficient funding, technical gaps, and governance issues. Case studies from Kenya, Nigeria, South Africa, and Ethiopia demonstrate implementation strategies, revealing supportive environments and challenges. This review synthesises policy discussions, highlights innovations like pay-as-you-go financing and digitalisation and outlines an integrated energy planning roadmap. Recommendations include regulatory reforms, blended financing models, capacity-building initiatives, and regional cooperation. This paper argues that decentralisation should be viewed not as a temporary measure but as a foundation for energy strategies. With visionary leadership, collaborative governance, and targeted investments, decentralised systems can transform Sub-Saharan Africa's energy future, prioritising equity, resilience, and sustainability. • Decentralized renewable energy (DRE) is paving the way for fair energy access across Sub-Saharan Africa. • ii. DRE systems are all about empowering communities, promoting energy democracy, and building resilience against climate change. • iii. Unfortunately, there are policy, financial, and technical hurdles that hold back the widespread adoption of DRE in the area. • iv. Various case studies showcase a range of DRE strategies and creative financing solutions. • v. For a successful shift to sustainable energy, integrated policy reforms and regional collaboration are essential.