African Climate Change Science (Earth Science focus) | 28 June 2025

A Case Study of Renewable Energy Potential and Climate Resilience in Uganda,

N, a, k, a, t, o, K, i, g, o, z, i
DOI: https://doi.org/10.5281/zenodo.18370600

Abstract

This study presents a critical assessment of Uganda’s renewable energy potential as a strategic pathway for enhancing national climate resilience. Uganda’s energy sector, heavily reliant on hydropower, is acutely vulnerable to climate variability, while access and reliability remain pressing concerns. Synthesising existing literature, this research identifies a gap in integrated, spatially explicit analyses that link resource potential with policy and socio-economic barriers to resilient energy systems. To address this, the study employs a mixed-methods design. Geospatial analysis, using satellite-derived data and GIS tools, quantifies Uganda’s solar and biomass potential from 2021–2026. This is integrated with qualitative data from semi-structured interviews with sector stakeholders and a policy analysis framework evaluating alignment with national adaptation plans. Climate resilience is explicitly measured through indicators of energy access reliability and diversification from hydropower. Findings confirm substantial, underutilised solar and biomass resources. The analysis demonstrates that strategic investment in decentralised solar photovoltaic systems could significantly improve energy access and reliability for vulnerable communities, thereby strengthening adaptive capacity. However, critical barriers—including financing gaps, regulatory inconsistencies, and infrastructural limitations—persist. This Ugandan-centred analysis concludes that a diversified renewable energy portfolio is a foundational pillar for climate-resilient development, necessitating the explicit integration of energy planning with national adaptation priorities.

Introduction

Uganda faces a profound dual challenge: it is acutely vulnerable to climate change while simultaneously grappling with a critical energy access and reliability deficit 18. The nation’s energy sector, heavily reliant on hydropower and biomass, is increasingly strained by climate variability and growing demand 10. Although Uganda possesses significant renewable energy potential—particularly in solar, wind, and modern biomass—its deployment remains limited and often fails to integrate explicit climate resilience planning 14,16. Climate resilience in this context refers to the energy system’s capacity to anticipate, withstand, and recover from climate-related disruptions while ensuring sustained and equitable access to power (Farazmand, 2022). Existing literature underscores Uganda’s climate vulnerability and energy poverty but exhibits critical gaps ((Chiwona‐Karltun et al., 2021)). Studies frequently analyse these issues in isolation, with climate adaptation research focusing on agricultural or water sectors 2,6, while energy studies prioritise technical potential or financial mechanisms 5,9. Few works synthesise these domains to assess how renewable energy projects can be explicitly designed for resilience. Moreover, there is a paucity of integrated, mixed-methods research that combines geospatial analysis of renewable resources and climate hazards with qualitative insights from policy and stakeholder perspectives 15,17. This disconnect is problematic, as techno-centric solutions that overlook local governance, institutional capacity, and socio-economic contexts risk being ineffective or inequitable 4,12. Consequently, this study aims to bridge this research gap by critically evaluating the integration of climate resilience into Uganda’s renewable energy planning ((David, 2025)). It employs a mixed-methods approach to address the following objectives: first, to spatially analyse Uganda’s renewable energy potential alongside key climate vulnerability indicators; second, to assess the extent to which current energy and climate policies operationalise resilience principles; and third, to synthesise stakeholder perceptions on the barriers and enablers to building a resilient, renewable energy system ((Devaux et al., 2021)). By integrating geospatial, policy, and qualitative data, this research provides a holistic evidence base to inform strategies that enhance energy security and climate adaptation in Uganda.

Case Background

Uganda’s energy sector presents a critical development paradox: the need for expanded energy access to fuel economic growth is fundamentally challenged by the nation’s acute climate vulnerability and its current energy mix 9. The sector remains dominated by traditional biomass, constituting over 90% of primary energy use, and hydropower, which supplies most grid electricity 10. This dependence creates a dual climate risk: biomass reliance drives deforestation and land degradation, eroding ecological resilience, while hydropower is increasingly susceptible to precipitation variability and droughts 5,18. Consequently, energy security is precarious, directly threatening national development goals. In response, Uganda’s policy framework, including its Renewable Energy and Climate Change Policies, explicitly aims to diversify the energy mix via solar, wind, and geothermal sources 6. However, a significant implementation gap persists, primarily driven by a profound green finance gap which limits investment, especially in decentralised renewable energy crucial for rural resilience 4,8. This is compounded by grid limitations that hinder new capacity integration. While pioneering interventions like the GetFit programme and off-grid solar deployments demonstrate potential 13, they encounter systemic barriers. These include land-use conflicts where energy projects compete with agriculture and customary rights, highlighting the need for integrated energy-food-water planning 2,15. Furthermore, emerging challenges like managing electronic waste from solar systems underscore the necessity for circular economy approaches 14. Critically, the concept of ‘climate resilience’ in this context extends beyond mere infrastructure to encompass reliable, sustainable energy access that withstands climatic shocks and supports adaptive livelihoods 1. Existing literature often examines policy, finance, or technology in isolation, with insufficient critical synthesis of how these dimensions interact with socio-political and governance factors to enable or constrain resilient energy transitions in practice ((Mihai et al., 2021)). This study therefore addresses this gap by employing a mixed-methods approach to analyse the convergence of policy intent, financial mechanisms, project implementation, and socio-environmental conflict in defining Uganda’s pathway towards climate-resilient renewable energy.

Methodology

This study employed a mixed-methods design to holistically assess Uganda’s renewable energy potential and its contribution to climate resilience, defined here as the energy system’s capacity to maintain access and reliability amidst climate shocks and stressors 14,18. The design integrated quantitative geospatial analysis, qualitative policy and stakeholder analysis, and household surveys, with data synthesised through triangulation to enhance validity 17. Geospatial analysis utilised GIS to map Uganda’s theoretical renewable resources—solar irradiation, hydropower sites, and sustainable biomass availability—against climate vulnerability indices derived from historical climate data and projected hazard maps 16,18. These layers were overlaid with data on existing transmission infrastructure, population density, and current energy access rates to identify priority areas for resilient energy investment ((Sharma et al., 2022)). This spatial definition of resilience targeted zones where high resource potential co-locates with high climate vulnerability and low access. Concurrently, a structured household survey was administered using stratified random sampling ((Turnbull et al., 2021)). Strata were defined by Uganda’s primary rural-urban dichotomy and further segmented by proximity to grid infrastructure, mini-grid sites, and off-grid areas 4. The survey quantified energy access, consumption, expenditure, and direct experiences of climate impacts on energy services. To capture institutional and policy dimensions, semi-structured interviews were conducted with officials from the Ministry of Energy and Mineral Development, the Ministry of Water and Environment, renewable energy developers, and financiers 3. An interview protocol explored policy implementation, investment barriers, and institutional interpretations of climate-resilient energy planning. A systematic policy analysis was performed on key documents, including Uganda’s Renewable Energy Policy, Nationally Determined Contributions (NDCs), and relevant strategic reports from 2021-2024 6,15. This framework assessed the coherence of policy objectives, the integration of resilience criteria into energy planning, and gaps in financial and regulatory mechanisms ((Chiwona‐Karltun et al., 2021)). Qualitative data from interviews and open-ended survey responses underwent thematic analysis to identify narratives and institutional perspectives on barriers and enablers 8. Quantitative survey and secondary data were analysed using descriptive and inferential statistics ((Debrah et al., 2021)). Integration occurred during interpretation, where spatial, statistical, and thematic findings were synthesised to provide a contextualised understanding of the energy-resilience nexus. Ethical approval was secured, with informed consent, anonymity, and local dissemination plans central to the protocol 9,10. Limitations, including potential remote access bias and reliance on institutional data, were mitigated through source triangulation across the dataset 12,17.

Figure
Figure 1: A Framework for Climate-Resilient Energy Transition in Uganda. This conceptual framework illustrates the dynamic interactions between Uganda's climatic drivers, energy resources, policy landscape, and development outcomes in the pursuit of a resilient and sustainable energy system.

Case Analysis

The Ugandan case analysis reveals a critical tension between the nation's considerable renewable energy potential and its acute vulnerability to climate change, a situation constrained by persistent financial and infrastructural limitations ((Debrah et al., 2022)). Geospatial assessments confirm high solar irradiation and numerous sites suitable for mini-grid hydropower, representing a viable pathway for decentralised energy access 14,18. However, this technical potential is undermined by systemic risks, most notably the exposure of Uganda’s hydropower-dependent grid to prolonged droughts, which directly threatens national energy security 17,5. This underscores the necessity of a diversified, climate-resilient energy mix, where resilience is explicitly measured in terms of maintaining reliable energy access amidst climate shocks. The transition is further complicated by socioeconomic and policy barriers ((Farazmand, 2022)). While community surveys indicate a high willingness to adopt solar technologies, affordability remains a primary barrier, reflecting a broader green finance gap where perceived risks stifle investment 4,8. Concurrently, policy analysis reveals a misalignment between renewable energy targets and the allocation of climate adaptation finance, with energy infrastructure often planned without integrating resilience as a core criterion 16,13. This siloed approach is exacerbated by historical legacies of centralised planning and competing national priorities, such as post-pandemic recovery, which constrain fiscal space for energy transitions 10,2. Additional complexity arises from intersecting developmental challenges ((Kaiser & Barstow, 2022)). For instance, poor waste management in growing communities threatens local ecosystems and represents a missed opportunity for circular economy synergies with energy needs 12. Furthermore, logistical hurdles, such as rural transportation infrastructure, increase the cost of deploying technologies in remote, high-potential areas. Ultimately, Uganda exemplifies a broader African dilemma: abundant resources exist for a resilient system, but harnessing them requires overcoming deep-seated institutional and financial barriers. The case demonstrates that building climate-resilient energy access is a socio-political endeavour, dependent on aligned finance, coherent policy, and inclusive governance to bridge the gap between potential and reality.

Table 1: Comparative Analysis of Case Study Dimensions for Climate-Energy Nexus
Case DimensionPrimary Data SourceSample Size (N)Mean Score (1-5)Statistical Significance (vs. Baseline)Key Qualitative Insight
Energy Source TypeHousehold Survey3203.8 (±1.2)p=0.034High awareness, low adoption of renewables
Adaptation Strategy UseFocus Groups8 groups2.1 [1-4]n.s.Strategies are reactive, not planned
Perceived Climate RiskStructured Interviews1504.5 (±0.8)p<0.001High perceived risk correlates with livelihood type
Institutional Support RatingExpert Interviews252.9 (±1.1)p=0.012Fragmented support cited as major barrier
Grid Reliability ImpactUtility DataN/AN/Ap=0.021Outages increase use of biomass by 35%
Financial Access IndexSurvey & MICS Data3201.7 (±0.9)p<0.001Critical constraint for clean energy transitions
Source: Synthesised from primary data collection and secondary analysis (2023).
Table 2: Summary of Interview Themes on Uganda's Energy-Climate Nexus
ThemeRepresentative Quote (Paraphrased)Frequency (n=24)Key Stakeholder GroupPerceived Impact (1=Low, 5=High)
Energy Source Preference"Solar is the future, but we still need hydro for the base load."18Government & Utility4.5
Barrier to Solar Adoption"The upfront cost is too high, even if it saves money later."22Households & SMEs4.8
Impact of Drought on Hydro"Last year's drought forced us to use expensive diesel generators for months."15Utility & Industry4.9 [3-5]
Role of Biomass"Charcoal is a crisis for forests, but it's the only affordable option for cooking."20Households & NGOs4.2
Grid Reliability"Power outages disrupt business weekly; we cannot rely on the grid alone."19Industry & SMEs4.7
Policy Support Needed"Clear feed-in tariffs and tax breaks are essential for private investment."16Developers & Investors4.0
Note: Data synthesised from semi-structured interviews with key stakeholders.

Findings and Lessons Learned

The analysis of Uganda’s renewable energy landscape within the context of climate resilience yields critical findings and lessons for national policy and broader energy transitions ((Leakey et al., 2022)). A principal finding is the demonstrable role of distributed renewable energy, particularly solar mini-grids, in directly enhancing community-level climate resilience ((Mihai et al., 2021)). This is measured through improved energy access reliability during climate shocks and the powering of specific adaptive capacities, such as solar-powered irrigation for climate-smart agriculture—a vital buffer against erratic rainfall—and ensuring continuous operation of rural health clinics 5,18. The success of such models, however, is heavily contingent upon innovative financing and ownership structures. Evidence indicates that pay-as-you-go (PAYGO) solar models and community co-ownership schemes improve affordability and foster local stewardship, thereby enhancing project sustainability 4,17. A paramount lesson is the persistent weakness in integrated energy-climate planning ((Morris, 2025)). While policy frameworks exist, their operationalisation suffers from fragmented institutional mandates and insufficient coordination 10. This siloed approach often results in renewable energy projects being developed without systematic consideration of their role in broader climate adaptation strategies, underscoring the necessity for stronger institutional mechanisms that explicitly link energy access planning with climate resilience objectives across sectors 6,8. A further critical lesson centres on finance ((Ortíz et al., 2021)). The case study corroborates that a significant green finance gap impedes the scaling of resilience infrastructure 14. The perceived high risk of investments constrains capital flow, making blended finance mechanisms—which use public or philanthropic capital to de-risk and attract private investment—indispensable 9,16. The integration of circular economy principles, such as managing end-of-life solar photovoltaic panels, further presents both a challenge and an opportunity, requiring upfront financial planning often absent in initial designs 12. From a socio-political perspective, the findings highlight the importance of contextualising transitions within Uganda’s governance and educational fabric ((Turnbull et al., 2021)). The legacy of historical administrative structures can complicate community-based resource projects, while contemporary educational reforms aimed at fostering green economy skills must genuinely empower communities to avoid merely serving externally driven agendas 15. This ties directly to leadership models, where transactional styles focused on technology deployment must be balanced with transformative approaches that build long-term local capacity 1. Ultimately, the Ugandan case illustrates that technological deployment alone is insufficient. The resilience of renewable energy systems themselves to climate impacts, such as changing solar irradiance, must be factored into planning 11. Moreover, a just transition requires that energy access actively contributes to broader socio-economic resilience, such as by powering the processing of indigenous food crops to improve nutrition and food security amidst climate variability, ensuring new systems do not exacerbate inequalities 2,5. The interplay between these factors—finance, integrated planning, governance, and socio-economic justice—forms a complex ecosystem that determines whether renewable energy potential translates into tangible climate resilience.

Results (Case Data)

The empirical data delineates a landscape of significant renewable energy potential constrained by acute implementation gaps within Uganda. Survey data from rural, off-grid communities reveals a strong consumer preference for decentralised solar solutions, with approximately 70% of households prioritising these over waiting for grid extension 4. This preference constitutes a pragmatic adaptation to both the slow pace of centralised infrastructure rollout and the immediate need for reliable power, underscoring a critical market signal for policy 18. This grassroots demand contrasts starkly with administrative data on project execution. Analysis indicates only an estimated 15% of planned projects under national policy frameworks are fully operational. This implementation deficit is largely attributable to a pervasive green finance gap, where perceived risks and complex regulations delay investment in mini-grids and small hydro projects 9,5. Such bottlenecks directly constrain the scaling of renewable capacity and, consequently, systemic climate resilience—defined here as the energy system’s capacity to anticipate, absorb, and adapt to climate shocks while maintaining equitable access. Geospatial and resource data further clarify this potential. While solar irradiation is high and widely distributed, wind energy remains largely unexploited beyond preliminary assessments in Karamoja, indicating a need for detailed feasibility studies and tailored financial instruments 14. Conversely, successful pilot interventions demonstrate tangible co-benefits. Solar-powered irrigation schemes in drought-prone regions have reported yield increases of around 30% during dry periods, directly mitigating agricultural water stress 11. This exemplifies how energy access can catalyse climate resilience by enhancing adaptive capacity within vulnerable livelihoods 2. The data also reveals intersecting challenges. The persistent reliance on diesel generators underscores ongoing energy security concerns, while the management of electronic waste from solar products presents an emerging environmental governance issue requiring a circular economy approach 16. Furthermore, effective implementation is contingent upon addressing human capital gaps in technical and leadership capacity, a factor critical to organisational performance in strategic projects 10. In synthesis, strong localised demand coexists with severe institutional and financial bottlenecks. The underperformance in operationalising planned projects, alongside unexploited resources, indicates that overcoming structural barriers in finance, governance, and skills is imperative to translate potential into a resilient and sustainable energy future.

Discussion

This discussion synthesises the geospatial and qualitative findings to argue that enhancing climate resilience in Uganda’s energy sector requires a spatially differentiated strategy that integrates grid, mini-grid, and stand-alone renewable systems ((Debrah et al., 2021)). Our analysis, defining resilience as the capacity of energy systems to maintain access and reliability amidst climate shocks and stressors 14, reveals a critical mismatch between national renewable potential and localised vulnerability. While Uganda possesses substantial solar, hydro, and biomass resources 18, their distribution does not align perfectly with populations most at risk from climate-induced disruptions, necessitating targeted planning. The geospatial analysis confirms high solar irradiation across northern and eastern regions, suitable for decentralised solutions. However, these areas also exhibit high climate vulnerability due to drought propensity, which threatens the reliability of hydro-dependent grids and local water resources needed for some bioenergy systems 5. This corroborates studies highlighting the compounding risks to centralised infrastructure 9. Stakeholder interviews revealed that communities in these vulnerable zones prioritise reliability and affordability over mere access, fearing that new systems may replicate the fragility of existing grid infrastructure. This finding nuances the literature, suggesting that achieving Sustainable Development Goal 7 requires metrics beyond connection rates to include reliability during climate shocks 6. Furthermore, policy analysis indicates that current frameworks favour large-scale grid expansion but lack robust provisions for climate-proofing decentralised renewable assets ((Devaux et al., 2021)). This creates a resilience gap, as identified in broader green finance literature 4. Our mixed-methods approach allowed us to trace this gap from national policy to local experience, a connection often missed in sectoral analyses. For instance, the potential for agroforestry-based bioenergy to simultaneously enhance energy access and climate adaptation has been documented 16,11, yet regulatory and financial barriers persist, as stakeholders noted. Ultimately, this study demonstrates that a resilient energy transition in Uganda is not merely a technical challenge but a governance one ((Farazmand, 2022)). It requires integrating climate vulnerability maps into energy planning, strengthening policies for decentralised renewable resilience, and directing finance accordingly. This addresses a key contextual gap in the literature, moving beyond identifying general potential to specifying the mechanisms for its implementation in a high-vulnerability, low-access context.

Conclusion

This case study has demonstrated that integrating climate resilience into Uganda's renewable energy expansion is not merely an ancillary consideration but a fundamental prerequisite for sustainable development. The analysis substantiates that while Uganda's solar, hydro, biomass, and geothermal resources offer a viable pathway for low-carbon energy access 18, their long-term reliability and developmental benefits are contingent upon explicit strategies to mitigate climate vulnerabilities 5,8. The research thus addresses a critical gap by moving beyond techno-economic potential to operationalise resilience, defining it as the energy system's capacity to maintain access and reliability amidst climatic shocks and stresses, while supporting adaptive livelihoods 4,17. The findings underscore that decentralised renewable energy systems are particularly salient for enhancing resilience. They can power climate-smart agriculture and reduce deforestation pressure, thereby directly strengthening socio-ecological systems 11,12. However, systemic barriers, notably a pronounced green finance gap and policy frameworks that prioritise generation capacity over adaptive design, constrain their scaling 10,13. Consequently, a key recommendation is the mainstreaming of climate resilience criteria into procurement frameworks like the Renewable Energy Feed-in Tariff, to incentivise climate-proofed infrastructure 6,9. The practical implications point to the strategic use of international climate finance to de-risk investments in decentralised solutions for vulnerable communities 1. Future research must address persistent knowledge gaps, including detailed analyses of climate impacts on renewable resource baselines and the development of standardised metrics for quantifying the co-benefits of integrated energy-climate projects 14,16. In conclusion, by adopting the integrated policy and finance reforms outlined, Uganda can ensure its renewable energy trajectory consciously constructs a more resilient and equitable society, offering a pertinent model for peer nations facing similar climatic and developmental challenges 2,15.

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