GE Japan has installed a high-capacity energy storage system, a gas engine for cogeneration, and various LED lighting equipment at the “Future Disaster-Proof Factory Plan” — a pilot project being undertaken by Sekisui House’s Tohoku Factory.
The Sekisui House Tohoku Factory — a regional disaster prevention facility that Sekisui House built via a public-private partnership with Shikama City, in Miyagi Prefecture — is partly intended to demonstrate the effectiveness of reducing peak electricity usage through the use of energy storage.
The combination of a gas engine and a storage battery, for example, can lower a factory’s energy contract by up to ~700 kilowatts (kW) at a time — which is equivalent to the peak electricity requirements of 223 households in the area.
Other than reducing peak demand rates, the project also intends to serve as an example of disaster preparedness. Once installation is complete, Sekisui House’s Tohoku Factory will have access to an integrated system featuring: a high-capacity energy storage system, a gas engine, and a solar power generator (720 kW output).
Here are the details on what exactly GE Japan has installed:
- High capacity energy storage system: 2 Megawatts per hour (MWh), 500 kW output. As this is a module battery storage solution with great expandability, the cabinet boasts a long battery life cycle, requires minimal maintenance, and does not require external cooling or heating facilities
- Cogeneration gas engine: VGF H24GSID / 225KW power output. The gas engine realized a total thermal efficiency of between 75% and 80% through the Waukesha gas engine that is usable with cogeneration operations, and simultaneously produces electricity and warm water. It boasts high environmental friendliness with NOx concentrations below 40 ppm and high performance for disaster situations through its prompt booting after blackouts.
- LED lighting equipment: 491 units inside factory, 130 units inside office. LED lighting equipment promotes superior energy saving performance and eco-friendliness by conserving 70% of the factory’s energy. In addition to the office, cafeteria, and guestrooms, GE also installed solar LED street lights throughout the factory grounds.