Photo by Vivint Solar
Renewable home-energy systems are increasing everywhere, although who controls the electrons is still being worked out, just as in the time of the two great grid pioneers Thomas Edison and Samuel Insull. Edison built the first commercial electricity-generating power station in New York in 1882, while Insull designed how to monetize the juice from an ever-growing supply. Add in the ability today to buy and sell to others along an internet-enabled, “bi-directional” grid...