New Jersey utility Public Service Electric & Gas on Nov. 30 said it has gotten the go-ahead from state regulators to invest up to $80 million in the next three years to build solar farms on brownfields and landfills in its service territory. PSE&G says it has invested more than $500 million in the “Solar 4 All” program that supplies solar power directly to the electric grid, which is about 40% cheaper than residential solar projects. By year’s end, PSE&G will have installed 53 MW of direct-current power on nine landfills and brownfields. The new approval will boost that to 86 MW, with the added megawatts to come on line by late 2019.