Such schemes include one on the Isle of Gigha. The Heritage Trust set up Gigha Renewable Energy to buy and operate three Vestas V27 wind turbines. They were commissioned on 21 January 2005 and are capable of generating up to 675 kW of power and profits are reinvested in the community. The island of Eigg in the Inner Hebrides is not connected to the National Grid, and has an integrated renewable power supply with wind, hydro and solar and battery storage, and a rarely used diesel backup.