Energy storage inverter test load

What are energy storage systems?

Energy storage systems (ESSs), and particularly battery energy storage systems, are finding their way into a very wide range of applications for utilities, commercial, industrial, military and residential power. Applications include renewable integration, frequency regulation, critical backup power, peak shaving, load leveling, and more.

What is DTE Energy CES testing?

The testing is being performed for DTE Energy as part of the US Department of Energy’s Energy Storage Smart Grid Demonstration Program. The CES consists of a power conditioning system, and a battery energy storage unit. Testing may include basic operation, round-trip efficiency, peak shaving, and frequency regulation.

What are the different types of energy storage technologies?

Chemistries range from Li-Ion, NiMH, NaNiCl, NaS, ZnO, Na+, and PbSO4; and technologies range from standard to flow, metal, and super-capacitors. Practical difficulties with testing such a wide range of energy storage technologies include the wide range of applications, measurements, electrical connectivity, and digital communication protocols.