Solar glossary
Generator cost per kWh: what it means and why it matters
The all-in cost of a self-generated kilowatt-hour, at the fuel the building actually burns — petrol for most homes, diesel for commercial sites.
Why it matters in Nigeria
This is the number solar competes with in Nigeria, and it is several times the grid tariff.
How PureWatts measures it
Median Genset cost ₦
med_genset_cost_ngn_kwh
Median over the buildings in the group. Medians DO NOT COMBINE — never average these across groups; re-derive from the histograms instead. Generator cost at the segment's own fuel — petrol for residential, diesel for C&I.
Median over the buildings in the group. Medians DO NOT COMBINE — never average these across groups; re-derive from the histograms instead.
Total Genset kWh per year (vs generator)
sum_genset_kwh_yr
Sum over the buildings in the group. Energy self-generated today.
Counterfactual: self-generate every kWh, at the fuel the segment actually burns — petrol ~N1,114/kWh for residential, diesel ~N669/kWh for C&I. Upper bound. RENAMED from `diesel`, which priced households at diesel they do not burn.
Sum over the buildings in the group.
See these numbers for your area
Every state and local government area page reports generator cost per kwh for its own rooftops. Browse the Nigeria rooftop solar data.