PowerTechnology | Batteries see 149% increase in Balancing Mechanism activity

Our ‘Balancing Mechanism report’ has found that accepted volumes in the Balancing Mechanism (BM) from identified batteries, gas reciprocating engines, and aggregated units across June – August 2020 have all increased.

Year-on-year, accepted volumes have seen significant rises: batteries volume has risen by 149%, while gas reciprocating engines saw a 338% increase, accepted volumes from aggregated units rose by 518%, and there was a 125% increase from wind.

It is no surprise that the BM experienced a notable increase in activity so far this year, in light of the heightened challenges brought by Covid-19. Even after the lockdown restrictions eased total volumes of accepted actions on the BM, they remained significantly higher in 2020 than in 2019. The total volume of actions across June–August 2020 totalled 9.1 TWh, up 40% on the same three months in 2019.

However, what is most interesting is the technologies that have been providing these balancing actions to the ESO. Newer asset types such as batteries, gas reciprocating engines, and aggregated units, which are formed up of multiple technology types, have seen the greatest percentage increase in activity.

Lee Drummee, Analyst