The answer? Easy. Get yourself twenty 80-ton batteries that look like small buildings, were designed by the Japanese and have a life expectancy of 15 years. Enough right ?
Xcel Energy is the company who’s trying to store the energy from its 11-megawatt wind farm in southwestern Minnesota and store it on such batteries that will discharge 1 megawatt of power, enough energy for 1,000 homes. The main concern with the wind is that the speed is always changing so the system had to be designed to charge the batteries while the wind blows and when the speed goes down the batteries will help even out the flow of electricity to the grid.
Xcel Energy is the first company that added batteries to a wind farm to capture the power and help with peak power demands.