US company SustainX has built its first utility-scale isothermal compressed air storage system, the latest in promising field.

via Renew Economy http://reneweconomy.com.au/2013/compressed-air-energy-storage-latest-breakthrough-for-utility-scale-renewables-90133?utm_source=rss&utm_medium=rss&utm_campaign=compressed-air-energy-storage-latest-breakthrough-for-utility-scale-renewables-90133