By Morrison Rwakakamba
Uganda stands at a make-or-break moment. Rain-fed agriculture, which employs 70% of Ugandans and contributes 24% of GDP, is bleeding the economy dry. Droughts already slash GDP by up to 5% annually—roughly $2.5 billion at current levels. Without urgent irrigation scale-up, Uganda risks forfeiting $15 billion in cumulative productivity gains over the next five years alone.
The foregoing is the prize—and the peril—highlighted in the landmark 2026 report
“Pumping Up Climate Technology in Uganda: Business and Financing Models for the Roll-Out of Solar-Powered Irrigation Systems for Smallholder Farmers” led by the late Abdulmutalib Yusuff (UNEP-CCC) with co-authors Dennis Besigye (FAO), Eddie Sembatya (UNEP-CCC), James Haselip (UNEP-CCC), and Mercy Corps under the Accelerating Climate Technology Transition (ACTT) and Powering the Uptake of Climate Change Mitigating Pumps (Pump-Up) programmes.
The report delivers a razor-sharp blueprint for Solar-Powered Irrigation Systems (SPIS) aligned with Uganda’s Nationally Determined Contribution (NDC) 3.0, National Adaptation Plan (NAP), and Fourth National Development Plan (NDP IV). Chapter 4 maps the ecosystem: Uganda Intergovernmental Fiscal Transfers (UgIFT) has installed over 5,100 systems (95% solar). Chapter 5 dissects game-changing models—Pay-As-You-Go (PAYGo) via Tulima Solar and SunCulture, lease-to-own, Irrigation-as-a-Service (IaaS) through ApTech’s Pay-N-Pump, aggregator partnerships, and bundled insurance.
Chapter 6 proves the economics: 150–220% yield surges for cabbage, watermelon, and tomatoes deliver single-season payback and USD 500–1,500 extra annual income per farmer.
Real-world proof abounds. Pump-Up demonstration sites in Gulu and Yumbe recovered full pump costs in one cycle. ApTech deployments in Kamuli and Lamwo lifted rice yields 25–50%. New Energy Nexus’s Productive Use of Renewable Energy programme empowered the Atek Ki Lwak Farmers Group to farm three acres of vegetables, earning over UGX 3 million (USD 807) per season.
In Karamoja, Farm Africa’s solar micro-irrigation has enabled women to produce year-round vegetables, slashing labour burdens and boosting nutrition and incomes.
Cooperative societies are the proven accelerant. The West Acholi Cooperative Union (11,000+ members) bundles SPIS with agronomy, insurance, and market linkages, slashing defaults through peer monitoring. Budaka Rice Growers Association and Zaabta have done the same, turning fragmented smallholders into bankable units.
The national budget is already moving and could move faster. Financial Year (FY) 2025/26 completed 145 solar schemes and installed 4,300 micro-irrigation systems via UgIFT. To ignite scale, ring-fence dedicated SPIS funding inside the Parish Development Model (PDM) and Operation Wealth Creation (OWC). PDM’s Parish Revolving Fund and enterprise groups can finance pumps under its “power” and “food security” pillars, linking them to extension services and inputs. OWC, which has already distributed solar kits worth UGX 120 million, must prioritise SPIS in wealth-creation packages—using movable-asset collateral to bypass land-title barriers.
Government incentives would turbo-charge uptake: import-duty waivers and tax credits on SPIS components; premium subsidies for climate-indexed insurance bundled with PAYGo; gender-targeted grants for women and youth groups; and results-based top-ups for cooperatives hitting 80% repayment rates.
My over two decades on the farm in Rukungiri and engagements in Kigezi highlands, Karamoja rangelands, and Adjumani refugee settlements expose the report’s regional blind spots. Kigezi needs terracing-compatible micro-catchments; Karamoja demands pastoralist water-user associations; Adjumani requires refugee-host protocols. Farmer segmentation (Annex 9.2) must incorporate agro-ecological typologies.
What must the research team do next? Run zonal pilots in Kigezi, Karamoja, and West Nile to quantify returns; model full PDM/OWC integration with SPIS financing; and deliver a national SPIS investment prospectus with blended-finance pathways. These actions would translate evidence into fully irrigated landscapes.
SPIS is not optional. It is the irrigation emergency that will determine whether Uganda realises its Tenfold Growth Strategy—expanding GDP from $50 billion today to $500 billion by 2040 through agro-industrialisation. Fully irrigating the 3 million irrigable hectares could unlock the $15 billion in productivity gains needed to power that ambition. Yes, its time for Uganda to use the sun (solar) to irrigate its fields and water animals everyday, all year through. Yusuff, Denis Besigye and colleagues have handed Uganda the models. The political will, budget muscle, and regional intelligence must now deliver. Time is not on our side.
Morrison Rwakakamba, Coffee Farmer, Nyeibingo Village, Rukungiri District.
