Ghana runs from a busy Atlantic coastline in the south, through a belt of forest and farmland, to drier savanna in the north. Its electricity system has long combined large-scale hydropower on the Volta with thermal power stations, and its grid reaches a comparatively large share of the population for the region. Against that background, wind and solar are about adding variety and resilience rather than starting from scratch. This page explains the general factors. For current figures and policy, check the energy ministry, regulator and grid operator.
North versus south
The south is humid and often cloudy, especially in the rainy seasons. The north is drier, with stronger sunshine for much of the year, which generally makes it more attractive for solar. The catch is that the biggest demand sits in the southern cities and industrial areas, so power from the north needs transmission lines to reach it. Dust carried by the harmattan in the dry season can also reduce output for a time.
The coast and wind
Coastal areas, particularly in parts of the east, are often looked at for wind measurement. Coastal winds tend to be moderate in this part of West Africa, so careful data collection at turbine height is essential before anyone can judge whether a site is viable. Our wind measurement explainer describes how that is done.
Hydro and the weather
A grid that leans heavily on one large river is exposed when rains fail. Solar can help, because dry years and sunny years often go together, and reservoirs can act a bit like a battery, holding water back while solar plants run in the daytime.
Rooftops and businesses
Across the country, homes, offices, factories and farms install their own solar to cut bills and cover outages. Distributed solar changes how a utility earns money and plans its network, which raises questions about tariffs and grid charges that many countries are still working through.
The money side
For large projects, the central questions are the financial health of the power buyer, whether contracts are honoured on time, and the risk that the local currency weakens against the currency the project borrowed in. These issues are common across the region and are explained on our financing page.
Useful questions
- Is a site near enough to transmission lines and demand?
- How does output vary between wet and dry seasons?
- Who carries currency and payment risk?
Explore further
Compare with Côte d'Ivoire and Togo, or browse the Country Notes hub.