Most workers in solar are needed to install new systems. Once a system is installed it will require only minimal scheduled maintenance for the next 25 years. After installation the system is wealth.

Further, building lots of small generation systems (e.g., rooftop solar) will inherently require more labor than building a few large generation systems (e.g., traditional power plants). One can argue that distributed power generation is a benefit, as it reduces the need for increased distribution capacity.