Tokyo compressed air energy storage project participants

What is compressed air energy storage (CAES)?

Among the different ES technologies, compressed air energy storage (CAES) can store tens to hundreds of MW of power capacity for long-term applications and utility-scale. The increasing need for large-scale ES has led to the rising interest and development of CAES projects.

How ES technology is being used in Japan?

In Japan, power generation and retail sectors of the power industry are liberalized. There is growing interest in ES technologies (especially batteries) as stable suppliers, although they have been around for decades (since the 1980s) : The target is 15 % of ES capacity to be deployed on the grid , .

What is an example of a widespread storage technology deployment?

One example they mention is precisely CAES. The IEA Technology Roadmap states that the key to achieving widespread storage technology deployment is enabling compensation for multiple services delivered across the energy system.

Can a TSO own an electricity storage system?

Directive 2009/28/EC27 states that transmission system operators (TSOs) cannot control the supply or generation of electricity, meaning that TSOs cannot own or manage an electricity storage system . There is a debate in the European Commission about whether distribution network operators (DNOs) or TSOs should own ES , .