June 28 (SeeNews) - French group Saft (EPA:SAFT) has clinched a deal to supply its Uptimax nickel battery systems at the Amrumbank West offshore wind farm of German energy group E.on SE (ETR:EOAN).
The 302 MW wind farm, which has been inaugurated recently, is located about 40 km from Helgoland, an island off the coast of Germany in the North Sea. It can supply about 300,000 households with renewable energy while helping to reduce CO2 emissions by 740,000 metric tons per year, the developer says.
The wind farm’s remote location meant that E.on required backup batteries that would guarantee reliable and safe operation without the need for regular maintenance visits.
Saft has provided a total of 80 Uptimax battery systems – one for each turbine. In the event of an interruption to the main power supply, the batteries are designed to deliver peak power for essential safety systems for an initial period of eight hours, followed by a further 88 hours of low power. Each battery is rated at 24 V and has energy storage capacity of 150 Ah or 390 Ah.