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🇺🇬 Solar Calculator Uganda

Enter your UMEME bill in shillings and region — get solar system size, Gulu 5.4 PSH sunshine, diesel genset replacement savings, competitive ~$600/kWp installation costs, and payback period typically 2–7 years.

Your electricity details
UGX
Solar system results — Uganda
5 kWp system — 1372 kWh/kWp/yr
Est. monthly kWh160 kWh/mo
Annual solar production6,862 kWh/yr
Effective rate usedUSh 750/kWh (UMEME retail)
Grid reliability75% uptime
Annual benefit (savings)USh 2,959,237/yr
Net meteringNone — UMEME self-consumption
System cost rangeUSh 11,000,000 – USh 16,000,000
Total installed cost (midpoint)USh 13,500,000
Payback period4.6 years
25-year net savingsUSh 60,480,937
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How to Use This Calculator

Enter your monthly bill and region

Enter your average monthly electricity bill in Ugandan shillings (USh/UGX) from UMEME, Uganda's primary electricity distributor. UMEME's retail tariff is approximately UGX 750/kWh (~$0.20/kWh) — high by East African standards and significantly higher than Kenya or Tanzania. This high tariff, combined with Uganda's excellent sunshine (4.5–5.4 PSH) and competitive installation costs (~$600–870/kWp), creates some of the best solar economics in Africa. Select your region — Gulu (5.4 PSH) in northern Uganda is the sunniest major city.

UMEME grid hours and reliability

UMEME grid reliability varies considerably across Uganda. Kampala central areas receive 20–24 hours/day; regional cities typically 12–18 hours; rural grid connections 4–12 hours. Uganda has 57% of its 47 million population without electricity access, primarily in rural areas. The combination of high UMEME tariffs and grid unreliability makes solar + battery storage highly attractive — providing both bill savings and reliable backup power during frequent outages. For off-grid communities in northern Uganda and remote areas, solar is the primary electrification pathway.

Uganda's competitive solar market

Uganda has one of Africa's most competitive solar installation markets. System costs of UGX 2,200,000–3,200,000/kWp (~$600–870/kWp) reflect a mature and competitive installer base, particularly in Kampala. Organizations like Solar Now, Bboxx, and M-KOPA have scaled solar access across rural Uganda. The Uganda Rural Electrification Agency (REA) and UEGCL manage government solar programs. No formal residential net metering scheme exists under UMEME as of 2026, but self-consumption savings at UGX 750/kWh still deliver strong economics.

The Formula

Monthly kWh = Monthly Bill ÷ USh 750/kWh (UMEME retail rate) Annual production = kWp × PSH × 365 × 0.80 efficiency Grid mode: self-consumption = 50% + (1-grid uptime) × 30% Genset mode: 90% of production replaces diesel at USh 2,500/kWh Annual benefit = utilized kWh × effective rate System cost = kWp × USh 2,200,000–3,200,000/kWp (~$600–870/kWp) Grid payback = 4–7 years; Genset replacement = 2–4 years

Uganda's Renewable Energy Policy (2007, revised 2023) and Rural Electrification Strategy target 60% electricity access by 2027 and 80% by 2040, with solar central to off-grid targets. The Uganda Electricity Regulatory Authority (ERA) sets UMEME tariffs annually. Tariffs have increased steadily, improving solar economics over time. The Solar Energy Dealers Association of Uganda (SEDAT) represents the local solar industry. Uganda's equatorial location means year-round consistent solar production with minimal seasonal variation — a significant advantage for predictable returns.

Example

David — Kampala home, 5kWp UMEME supplement

David owns a home in Kampala and pays USh 120,000/month for UMEME electricity. His area has 18 hours/day grid availability. He installs a 5kWp + battery system.

Monthly billUSh 120,000
Region / PSHKampala, 4.7 PSH
System size5 kWp
Grid hours18 hrs/day
Genset replacementNo — UMEME supplement

Result

Annual production~6,862 kWh/yr
Production per kWp~1,372 kWh/kWp/yr
Annual savings~USh 2,948,600/yr
System cost rangeUSh 11,000,000 – 16,000,000
Payback~4.6 years
25-year net savings~USh 60,465,000

Kampala's 4.7 PSH delivers 1,372 kWh/kWp/yr and UMEME's high UGX 750/kWh tariff makes solar exceptionally attractive. A 4.6-year payback is excellent by any standard. For safari lodges and off-grid businesses in Gulu (5.4 PSH), economics are even better — payback often under 3 years when replacing diesel. Uganda's equatorial location provides consistent year-round solar production with minimal seasonal variation, unlike temperate European markets.

FAQ

Uganda offers some of Africa's best solar economics. UMEME's high retail tariff (~UGX 750/kWh), good sunshine (4.5–5.4 PSH), and very competitive installation costs (~$600–870/kWp) produce residential payback of 4–7 years. For genset replacement (UGX 2,500/kWh diesel), payback is 2–4 years. Uganda's equatorial location gives year-round consistent production. The 57% population without electricity access represents an enormous off-grid solar opportunity addressed by Solar Now, Bboxx, M-KOPA, and REA programs.
Uganda's high electricity tariffs (~UGX 750/kWh, ~$0.20) reflect several factors: UMEME's concession structure and infrastructure investment requirements; high transmission and distribution losses (over 20%); the cost of UEGCL's power purchase agreements with generation companies including thermal plants; and cross-subsidization between customer categories. Unlike Kenya (which has cheaper geothermal power), Uganda relies more heavily on hydropower (Owen Falls, Bujagali) and some thermal generation. High tariffs, paradoxically, create excellent solar investment conditions.
Gulu (5.4 PSH) in northern Uganda is the sunniest major city, with a savannah climate north of the equator. Arua (5.3 PSH) in the northwest and Lira (5.2 PSH) are similarly excellent. Mbarara (4.8 PSH) in the southwest performs well. Kampala (4.7 PSH) and Mbale (4.7 PSH) are mid-range. Fort Portal (4.5 PSH) near the Rwenzori Mountains receives the least sun due to orographic rainfall and cloud cover from the mountain range.
Uganda has highly competitive solar installation costs: UGX 2,200,000–3,200,000/kWp (~$600–870/kWp) — among the lowest in Africa for installed systems. A 5kWp urban home system costs UGX 11,000,000–16,000,000 (~$3,000–4,350). The competitive market reflects many active installers in Kampala and scale from organizations like Solar Now, Bboxx, and M-KOPA. Import duty exemptions on solar panels (per Uganda Revenue Authority guidelines) help keep costs down. VAT of 18% applies to installation labor; equipment may be exempt — verify with your installer.
Uganda does not have a formal residential net metering scheme under UMEME as of 2026. The Electricity Act and ERA (Electricity Regulatory Authority) regulations do not currently provide for residential prosumer export compensation. Solar systems provide self-consumption savings only — surplus exported to the UMEME grid receives no payment. However, ERA has been studying net metering frameworks and the Renewable Energy Policy (2023 revision) references future development of small generator connection rules. When net metering is introduced, it will significantly improve urban solar economics at UGX 750/kWh credit value.

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