Header Picture of a futuristic battery energy storage system.

The value proposition of battery storage extends far beyond mere wholesale energy arbitrage. To truly unlock the full economic potential of these assets and maximize their contribution to grid stability, it is crucial to consider their participation in ancillary services markets. We show this multi-market optimization here by way of example focusing on all spot markets (Day-Ahead, Intraday and Intraday Continuous) as well as the ancillary services.

Illustration of climate protest in Berlin symbolizing Germany’s debate on energy policy and renewable transition ahead of the federal election

With Germany on the brink of a pivotal election, we want to share our high-level views on energy policy and the key considerations for voters. We’ve outlined five fundamental theses to keep this concise and to the point.

Chart of German day-ahead electricity market showing average price levels and HL spread, illustrating the 2024 decoupling of volatility from overall prices due to renewables and the need for short-term flexibility

Electricity (cross-product) price volatility has historically been closely linked to overall price levels. This trend seems to have ended in 2024 in Germany, as low marginal cost renewables are pushing the overall wholesale price level down, while peakers such as gas and batteries need to finance their investments in relatively few but increasingly expensive production hours

Symbolic image of an old scientist working on complex calculations with a chameleon by his side, representing the science of battery storage revenue modeling in electricity markets.

Over the last year we became increasingly involved with the “science” of modelling past and future revenues of battery energy storage systems (BESS) and now decided to shed some light on this practice. We believe that customers are being sold a lot of voodoo for science and that the incentives in this industry are not at all well aligned.