What is a standalone Bess solution?

Standalone BESS solutions can be dynamically sized to suit any long-duration storage requirement, typically sized from 100kW/ 400kWh to 40MW/ 160MWh. Standalone solutions are usually made up of multiple containerised units and can stand in any convenient location within, or even outside of, a customer’s existing plant.

How much power does a Bess need?

Thus, an available capacity of at least 0.5 MWh is required per 1 MW FCR power for standalone BESSs (i.e. energy-to-power (E/P) ratio = 0.5 h) and the BESS state of charge (SoC) has to be kept at 50 %.

When is a Bess charged?

Standalone BESS’s are charged using grid energy, whenever it is available, although ideally during off-peak periods, when electricity prices are low. They are then discharged either when power is not available from the grid, such as power cuts or outages, or during peak charge periods to take advantage of the economics of load shifting.

What is a Bess operating range?

The operating range is the permitted SoC range of the BESS during FCR provision and directly depends on the FCR capacity requirements (see Section 2.1 ). The larger the FCR power capacity, the more BESS energy capacity has to be reserved at all times and the smaller the operating range.

Why should you choose a standalone Bess?

The reason is that standalone BESSs not only have higher environmental impacts due to the higher battery capacity required but also provide more MWh FCR during the lifetime because of the different operational strategy applied.