Dynapower Company LLC, a Vermont-based supplier of power conversion systems, announced in January having commissioned over 50 megawatts of grid-tied bi-directional energy storage inverters in December 2012. The inverters are the lynchpin of energy storage systems that connect to the electric grid via a variety of storage mediums, including lithium ion and lead-acid batteries.
“Our bi-directional inverters delivered from our Energy Management Systems group, are being used by utilities and integrators in a variety of applications including renewable energy, frequency regulation and VAR support for grid stability,” said Adam Knudsen, Dynapower Company President. “December’s commissioning covered multiple projects including a single installation rated for continuous duty of 36 MW with an overload rating of more than 45 MW.”
The inverters commissioned in December include Dynapower’s Compact Power System™ family of 600 VAC class inverters and the Dynapower PowerSkid™ product, which offer customers an integrated package of power electronics, switch gear, metering, and transformers to a direct medium voltage interconnection. To further demonstrate the capabilities of energy storage systems Dynapower has installed a 1.8 MW PowerSkid™ system at its facility. The system will comprise four different storage technologies used to integrate an onsite 100 kW wind turbine, 101 kW roof-mounted solar array and more than 2 MW hours of energy storage. The system is expected to come online in March 2013 and will be the first of its kind combining a variety of battery technologies into a common system.