Space-Based Solar Power, which can gather the unlimited sunlight available in space, can also work for the Moon.
Space-Based Solar Power was first developed to serve the clean energy needs of planet Earth.
As part of ESA’s Open Space Innovation Platform Campaign on ‘Clean Energy – New Ideas for Solar Power from Space’, a study undertaken by Switzerland’s Astrostrom company designed a Greater Earth Lunar Power Station, or GE⊕-LPS for short.
The study envisages a solar power satellite constructed mainly from lunar resources (including Moon-manufactured solar cells) that could deliver megawatts of microwave power down to receivers on the lunar surface, serving the needs of surface activities, including future crewed bases.
source ESA