On sunny days, the electricity meters of a number of apartments in New York (Brooklyn) neighborhood are moving backwards, as photovoltaic panels are installed on the roofs. When the sun shines bright, people can not use all the electricity, and consumers turn into manufacturers whose power is transferred to neighbors through the power grid. This case is not a precedent or a pilot project. Hundreds of New Yorkers buy and sell solar energy with each other through a block-platform that surrounds all the complex regulatory and administrative requirements. The processes are automated thanks to intelligent measuring and control devices as well as the smart grid in the area.
More info about the project, you could find out here
