Technical FAQs 4

What is an energy storage project?

An energy storage project is a cluster of battery banks (or modules) that are connected to the electrical grid. These battery banks are roughly the same size as a shipping container. These are also called Battery Energy Storage Systems (BESS), or grid-scale/utility-scale energy storage or battery storage systems.

What is a sand-based energy storage system?

A sand-based energy storage system has been developed by engineers in Finland, with the ability to store renewable power as heat for months at a time. The 7 meters tall ‘sand battery’ (pictured above) contains an automated heat storage system and 100 tonnes of sand. It has 100kW of heating power and 8MWh of energy capacity.

Where are the energy storage projects being built?

The energy storage projects will be located at three existing SCE power substations: 225 MW at Springvale Substation in Big Creek-Ventura, 200 MW at Hinson Substation in the Los Angeles Basin, and 112.5 MW at Etiwanda Substation in the Los Angeles Basin.

How many energy storage projects are there?

There are three energy storage projects. They will be located at three existing SCE power substations: 225 MW at Springvale Substation in Big Creek-Ventura, 200 MW at Hinson Substation in the Los Angeles Basin, and 112.5 MW at Etiwanda Substation in the Los Angeles Basin.

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