What is a Battery Energy Storage System (BESS)?
A Battery Storage System (BESS) is an energy management solution that has a crucial role in decarbonising our National Grid and is identified through Government policy as Critical National Infrastructure.
Why is BESS needed?
The UK is striving to reach ambitious carbon reduction goals to combat climate change. The County of Durham declared its own climate emergency in February 2019. However, there are not enough battery storage facilities to enable the UK to store the amount of renewable energy needed in the fight against climate change.
Previous and current Governments, emphasise the need to scale up energy storage technologies quickly so that they can play their vital role in decarbonising the electricity system.
How does it work?
Battery Energy Storage Systems provide balancing mechanisms to intermittent supply from renewable sources to reduce the risk of power shortages and blackouts. This is done by storing energy when levels of generation on the network outweigh the levels of demand. The electricity is then discharged immediately back onto the National Grid during periods of higher demand to ensure that any energy generated, is not wasted and there is no loss of power to end users.
Stores Energy
During times when there is extra electricity (e.g., from solar or wind power), the system charges up.
Releases Energy
When demand is high or there’s a power outage, the system discharges stored electricity.
Balances the Grid
Helps stabilise energy supply, making power more reliable and efficient.