To go alongside the publication of our December 2021 Leaderboard, Quentin and Imrith discuss BESS trends and strategies from last month. Watch below to see how these have shaped the Leaderboard.
Further analysis
Figure 1 shows the average fleet revenues for BESS assets in Great Britain (GB).

Average earnings (£/MW) for assets in December were the lowest since February 2021. This is due to falling FFR and DC prices caused by increased competition. Asset strategies can be split into three categories:
- Strictly FFR.
- Dynamic Containment (DC) and merchant markets.
- Hybrid (DC, FFR, and merchant markets).
Figure 2 (below) shows the revenues of assets from Modo’s Leaderboard in December 2021. Note: some assets have positive charges (e.g. Contego, Kemsley) due to positive DUoS at their locations.

Excludes assets with EFR contracts.
Figure 3 (below) shows asset revenues for the different operational strategies taken in December 2021.

- Participating solely in FFR provided the highest asset revenue but also the most varied. This is because FFR is pay-as-bid, which leads to differences in accepted bid prices.
- The average revenue for assets adopting hybrid strategies (FFR, DC and merchant) was £12,064/MW.