Solar Energy in Banjul
Banjul is located at 13.4°N, 16.6°W in Gambia. Here's what solar energy looks like for homeowners in this area.
Annual Irradiance
1,969
kWh/m²
Peak Sun Hours
4.6
hrs/day
2 kWp Output
3,386
kWh/year
Solar Score
81
/ 100
What does this mean for your roof?
Banjul receives approximately 1,969 kWh/m² of solar irradiance per year, which translates to 4.6 peak sun hours per day. This is excellent for residential solar energy production.
With a solar score of 81/100, Banjul ranks #8 of 66 cities in Gambia for solar potential in our atlas.
A typical 2 kWp residential solar system (4 panels) in Banjul would produce approximately 3,386 kWh per year, sized for the average household in Gambia.
The best months for solar production in Banjul are Year-round (minimal seasonal variation), while the lowest production occurs during Rainy season (varies by region). Being in the northern hemisphere, south-facing roofs capture the most annual sunlight.
Estimated savings in Banjul
System Cost
D218,000
2 kWp, before incentives
Annual Savings
~D22,100
At D13.6/kWh
Payback Period
~10 years
Before local incentives
25-Year Net Result
~D488,000
Savings minus system cost
These are approximate figures based on a standardized household consumption of 5,000 kWh/year and an estimated electricity rate of D13.6/kWh in Gambia. Local incentives may reduce the upfront cost — check current subsidy, tax-credit, or VAT programs in Gambia, as these can meaningfully shorten the payback period.
Figures are estimates based on typical system assumptions and the latest available electricity-price and billing data for Gambia. Actual costs, tariffs, net-metering rules, and incentives vary by utility and change over time — confirm with a local installer or energy authority before making decisions.
How solar billing works in Gambia
Savings come from using your own power; exports may earn little or nothing.
In Gambia, the main value of rooftop solar appears to come from self-consumption, meaning you save most when you use the electricity your panels produce at the moment it is generated. Energy exported to the grid may earn little or nothing, so systems are often sized and paired with usage habits (or storage) to maximise on-site use. Whether any export compensation exists at all varies by region and utility and should be confirmed locally.
Get your exact numbers
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Solar tips for Banjul homeowners
Face panels south
In the northern hemisphere, south-facing panels capture the most annual sunlight. East-west split systems also work well.
Optimal tilt angle
For Banjul, the energy-optimal panel tilt is about 15° from horizontal.
Size your system right
For the average household in Gambia, a 2 kWp system (4 panels) covers most electricity needs. Use our calculator for a personalized estimate.
Check local incentives
Local incentives may reduce the upfront cost of residential solar — check current subsidy, tax-credit, and VAT programs with your energy authority in Gambia.
Gear to prepare for solar
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Solar in other Gambia cities
Frequently asked questions about solar in Banjul
How much do solar panels cost in Banjul?
A typical 2 kWp residential solar system in Banjul, Gambia costs approximately D218,000 before incentives — this is an estimate based on typical regional pricing. Local incentives such as subsidies, tax credits, or VAT exemptions may reduce the upfront cost; check current programs in Gambia.
Do you get paid for exporting solar energy in Gambia?
Where solar value comes mainly from self-consumption, the savings in Gambia typically come from using your own generation rather than from exporting it, and any payment for surplus sent to the grid may be small or absent. Shifting usage to daytime hours or adding battery storage can help you capture more of that value. Because export arrangements vary by region and utility and may change, confirm the current rules with a local installer or energy authority.
How much electricity do solar panels produce in Banjul?
A 2 kWp solar system in Banjul produces approximately 3,386 kWh per year, based on 4.6 peak sun hours per day and 1,969 kWh/m² annual irradiance.
What is the solar panel payback period in Banjul?
Based on Gambia's electricity rate of D13.6/kWh, a 2 kWp system in Banjul pays for itself in approximately 10 years before incentives. After that, the electricity it generates is essentially free for the remaining panel lifespan of 25+ years.
Which direction should solar panels face in Banjul?
In Banjul, panels should ideally face south since it's in the northern hemisphere. The optimal tilt angle is about 15° from horizontal.
How many solar panels do I need for my home in Banjul?
A typical household in Gambia uses the equivalent of a 2 kWp system (4 panels). With 4.6 peak sun hours per day in Banjul, this covers most electricity needs. Use our calculator for a personalized estimate.