☀️ Peak sun hours in Ghana by region
Peak sun hours (PSH) is the number of hours per day the sun delivers 1000 W/m². Ghana sits near the equator with excellent irradiation: about 5.0–5.5 PSH on average — Accra and the coast are around 5.0–5.2, the northern savannah (Tamale, Wa) climbs toward 5.4–5.6. The Harmattan dust season (December–February) lowers output somewhat — a wash-down routine keeps panels near spec. See our guide on peak sun hours by location.
| Region | Approx. peak sun hours (annual avg) |
|---|---|
| Tamale & the north | ~5.4 – 5.6 |
| Kumasi & the forest belt | ~5.0 – 5.3 |
| Accra & the coast | ~5.0 – 5.2 |
| Takoradi & the west | ~5.0 – 5.2 |
Use the exact figure for your area in the solar panel calculator and the energy production calculator.
⚡ Electricity prices and reliability in Ghana
Grid electricity costs roughly GH₵1.0–1.8/kWh all-in depending on the block — and the deeper cost is unreliability. Scheduled and unscheduled outages (“dumsor”) still hit many areas several times a week, so homes and businesses already spend heavily on petrol generators: fuel alone commonly costs the equivalent of GH₵300–800+ per month for a shop. Solar with battery directly replaces that spend. A hybrid setup keeps the grid connection for cheap baseline power and lets the battery + solar carry the outages. Estimate your saving with the solar bill savings calculator.
💡 Why solar-plus-battery is the smartest move in Ghana
Because the alternative is a generator. A 2 kVA petrol generator running a shop's fridges and lights for 6 evening hours burns fuel worth several dollars a day, needs constant maintenance, and dies when fuel prices spike. A solar + lithium system of the same output costs a few months' worth of that fuel, then runs free for 10–15 years (battery life) with panels lasting 25+. Payback against generator replacement is commonly 1.5–3 years. Off-grid and mini-grid deployments are also growing fast in rural Ghana where the grid never arrives — read our grid-tied vs off-grid vs hybrid guide.
💰 System cost & payback in Ghana
As a rough planning guide (verify with local quotes — prices move):
| System size | Approx. installed cost | Suits |
|---|---|---|
| 1.5 kW + 2.4 kWh battery | ~GH₵6,000 – 9,000 | Small shop / 2-room home, replaces generator |
| 3 kW + 5 kWh battery | ~GH₵12,000 – 17,000 | Family home with fridge + fans + TV |
| 5 kW + 10 kWh battery | ~GH₵20,000 – 28,000 | Shop with freezers / larger home |
Against generator fuel and maintenance, payback is commonly 1.5–3 years — the fastest of any market in this guide. Work out your own numbers with the ROI calculator, size the battery with the battery calculator and size the array with the panel calculator — or design the whole system at once with the system report builder.
🛠️ Field note
In markets like Ghana's, the right question is never “is solar cheaper than grid power?” — it's “is solar cheaper than the generator I already own?” The generator maths almost always loses: fuel, oil, plugs, and downtime during the exact hours a shop needs refrigeration. Two field tips: use LiFePO4 batteries, not lead-acid — the price gap has closed and LiFePO4 survives 3,000+ cycles in hot climates; and plan the panel wash schedule around Harmattan, because dust buildup quietly cuts 15–25% of production.
🧰 Solar tools for Ghana
Plan your Ghana system with these:
- Solar panel calculator — how many panels for your usage and sun hours.
- Solar bill savings calculator — how much you'll cut off the block tariff.
- ROI calculator — payback period in dinars.
- Battery calculator — if you want backup for outages.
- Full system report — design the whole system in one page.
Related reading: how many panels to run a house, grid-tied vs off-grid vs hybrid, and solar panels in hot climates.
❓ Frequently asked questions
Is solar worth it in Ghana?
Yes — often the fastest payback of any market: against petrol-generator fuel (GH₵300–800+/month), a solar+battery system commonly pays back in 1.5–3 years.
How many sun hours does Ghana get?
Excellent — about 5.0–5.5 PSH on average. The north (Tamale) is highest at ~5.4–5.6; Accra and the coast ~5.0–5.2. Harmattan dust (Dec–Feb) reduces output; wash panels regularly.
Should I go fully off-grid in Ghana?
Usually hybrid is smarter: stay connected to the grid for cheap baseline power, and let solar + battery cover outages and peak hours. Full off-grid only where the grid is absent or unusable.
How much does a solar system with battery cost in Ghana?
Roughly GH₵6,000–9,000 for a 1.5 kW + 2.4 kWh shop/home starter system, GH₵12,000–17,000 for a 3 kW family system. Prices move — get local quotes.
Note: tariffs, net-billing rules and prices in Ghana change over time. The figures here are approximate, for planning only — always verify with your utility and local installers.