Electric energy storage operating mechanism

What is electrical energy storage (EES)?

Electrical Energy Storage, EES, is one of the key technologies in the areas covered by the IEC. EES techniques have shown unique capabilities in coping with some critical characteristics of electricity, for example hourly variations in demand and price.

What are the advantages of electrical energy storage?

Electrical energy storage offers two other important advantages. First, it decouples electricity generation from the load or electricity user, thus making it easier to regulate supply and demand. Second, it allows distributed storage opportunities for local grids, or microgrids, which greatly improve grid security, and hence, energy security.

Does energy storage have a frequency regulation mechanism?

The existing mechanism allows energy storage to declare charging and discharging quantities and selling prices in the market, and the market can spontaneously guide energy storage to realize its own frequency regulation value.

Are market mechanisms conducive to cost-sharing of energy storage?

However, the current market mechanisms are not conducive to the proper cost-sharing of energy storage and are difficult to support the large-scale investment and operation of future new energy storage projects in China.

Is energy storage a single operating mode?

With the expansion of the energy storage market and the evolution of application scenarios, energy storage is no longer limited to a single operating mode. Depending on the location of integration, many countries have gradually developed two main market operating models for energy storage: front-of-the-meter (FTM) and behind-the-meter (BTM).

How does energy storage work in the UK?

The revenue of energy storage in the UK front-of-the-meter market mainly comes from independent energy storage or energy storage jointly participating in the capacity market to obtain frequency regulation benefits, and the contribution of the energy market to energy storage cost alleviation is relatively small.