{"id":1990,"date":"2015-05-10T00:50:26","date_gmt":"2015-05-09T22:50:26","guid":{"rendered":"http:\/\/www.notechmagazine.com\/?p=1990"},"modified":"2015-10-13T23:43:31","modified_gmt":"2015-10-13T21:43:31","slug":"battery-killers-grid-interactive-water-heaters","status":"publish","type":"post","link":"https:\/\/www.notechmagazine.com\/2015\/05\/battery-killers-grid-interactive-water-heaters.html","title":{"rendered":"Battery Killers: Grid-Interactive Water Heaters"},"content":{"rendered":"
GIWHs are currently the least expensive form of energy storage available. Utilities can use fleets of grid-enabled water heaters for load shifting, demand response, arbitrage, ancillary services, or to respond to unexpected grid-stabilization events. Traditional dissemination of new water heater technology has been a painstakingly slow process, but water heater rental programs may greatly accelerate this process.<\/p>\n
<\/a>Grid-interactive water heaters (GIWHs) add bidirectional control to electric resistance water heaters, allowing a utility or third-party aggregator to rapidly toggle them off and on. This functionality turns a fleet of water heaters into a flexible energy-storage medium, capable of increasing and decreasing the load on the grid on a second-by-second basis.<\/p>\n