Demansys has been in the market for frequency adjustment and capacity on the East Coast of the US. It provides a service of controlling and operating rechargeable batteries and the electricity-powered equipment of utility customers in real time by using the "Grid Daemon," its own power monitoring control platform, to ISOs. Also, the company can provide services targeted at the capacity market, and it is planning to enter the market by carrying out the field test.
Demansys will supervise the entire test. It will set up the CrystEna at a suburban shopping center in New Jersey, where PJM Interconnection LLC, the largest ISO in the US, provides services. And Demansys will collect data on PJM's performance in the market for frequency adjustment and capacity and records of power sales for two years in the aim of confirming the effectiveness of the power storage system in stabilizing a power grid.
PJM has already started to make rules on how to deal with storage batteries in the capacity market. On the other hand, Hitachi will evaluate the power storage system by checking its reliability and effectiveness through the field test in the aim of commercializing the system.
Hitachi considers its power distribution business as the core business of its power system unit and plans to expand its solution business including power electronics technologies and information technologies such as devices and control systems. The company will continue to use the CrystEna for various facilities and actively promote sales of it as a power storage system that has an excellent control responsiveness.
Demansys has a good track record in providing services for various commercial and industrial applications including the Grid Daemon. And it has been engaged in a field test in which frequency is controlled without using a generator by controlling the demand of utility customers in the frequency adjustment market in New England since October 2012.