Community Energy Storage (CES)

Community Energy Storage (CES) devices offer local power utilities valuable power quality and power-flow management support functions.  A single CES unit is connected on the residential side of a distribution transformer and serves the houses -- typically three to 10 houses -- connected to the transformer.  The CES provides three main functions:

  • energy storage capacity that can be used as a reservoir for intermittent renewable energy sources such as wind and solar photovoltaics
  • power smoothing and power quality regulation
  • back-up power capability to provide electrical power to the connected houses during utility power outages

The PowerHub CE-3030 unit connects to the split-phase 240V/120V distribution circuit exactly as an additional residence connecting to the utility network and provides 30kW of power and 30kWH of energy.  CES units communicate with the electrical utility or system operator using a secure data collection and control channel.

The widespread development and deployment of CES units is being championed by US power companies and represents a significant shift in the way electric energy storage is addressed for future smart grid power systems.


CES device