Duke Energy
On March 11, 2011, The Great East Japan Earthquake hit very hard and took out much of the electric power. However, there were pockets that managed to provide power and heat during the 2 – 3 days it took to restore the electric grid. One of such pockets was at Sendai City in the Tohoku district.
Sendai microgrid was initially designed in 2004 as a demonstration project. After the study was completed in 2008 the microgrid continued in operation. It is located on the campus of Tohoku Fukushi University. Normal load, including a hospital, is about 700 kW. The microgrid has two gas fired generators, each at 350 kW, a 200 kW fuel cell and a 50 kW PV array.