Active Power has sold the first commercial unit of CoolAir DC, based upon Active Power's proprietary thermal and compressed air (TACAS) technology, represents a minute-for-minute alternative to batteries in energy storage applications. A single CoolAir DC unit can provide 85kW of power for up to 15 minutes and, simultaneously, provide cool air to mitigate heat build up in the protected environment. The product offers the ability to perform discharges during peak times and recharge the CoolAir system off-peak as a method of load shifting, thereby reducing the cost of power generation.