Passive solar energy can be exploited through architectural design, as by positioning windows to allow sunlight to enter and help heat a space. Active solar energy involves the conversion of sunlight to electrical energy, especially in solar (photovoltaic) cells. read more
The noun SOLAR ENERGY has 1 sense: 1. energy from the sun that is converted into thermal or electrical energy Familiarity information: SOLAR ENERGY used as a noun is very rare. read more