Rooftop solar in Sao Tome and Principe typically costs about Db36,000 per kW installed, and household electricity is around Db3.15 per kWh. The average sunshine is about 5 peak sun hours a day.
As a rough example, a 5 kW home system would cost about Db207,000, make around 6,844 kWh a year, and save about Db21,558 a year. That is a payback of roughly 9.6 years.
Rooftop solar
For homes and businesses. Size, cost, savings and payback.
Open rooftop calculatorSolar plant
For larger projects. Project returns and break-even price.
Open plant calculatorThese are typical estimates, not quotes. Replace them with real quotes before you decide anything.