Which African Market Has the Fastest Solar Payback?

• Where diesel is the benchmark the payback is shortest: generator-dependent sites in Nigeria and remote Kenyan sites commonly model 2–4 years.
• Where solar displaces a commercial grid tariff instead, payback typically models at 3–6 years depending on the tariff band and the storage ratio.
• Adding storage raises capital cost but usually shortens payback, because the battery captures savings in the hours when the alternative power is most expensive.