A promising opportunity for batteries: What are daily spreads on the Czech spot market?

The difference between the lowest and highest electricity price during the day on the Czech spot market has increased significantly compared with the period before the energy crisis. This creates room for commercial flexibility for battery storage, although experience from mature markets shows that rapid growth in their capacity can quickly reduce spreads again.

One source of revenue for batteries is commercial flexibility – they can buy electricity in hours with low prices and feed it back into the grid, particularly during evening peaks. The difference between the daily minimum and maximum is therefore one of the key indicators of their revenue potential.

This is not, however, revenue that can be achieved automatically. Batteries may not buy exactly at the daily minimum and sell at the maximum, while losses or the use of facilities for balancing services also reduce part of the spread. It is therefore primarily an indicative measure of the commercial opportunity.