Germany Utility Battery Storage- ‘First come, First served’ to FCAs.

As of April 1st 2026, the four Transmission System Operators (TSO) in Germany introduced a new maturity assessment process for storage grid connections, Flexible Connection Agreements (FCAs).

The previous strategy, first-come first-served, came with hidden dangers for their overall energy transition. As the application volumes increased, we observed a wave of immature early-stage projects and double submissions. Other contributing factors were the friendlier storage prices, increasing energy prices, and tightening of ESG regulations, which lead to a high number of investments in renewables and energy storage in general.

With that being said, the TSOs proposed a new system in February 2025, that came into effect just over a month ago. From April 1st 2026, storage projects are not getting evaluated by who applied first anymore. They are evaluated by readiness, maturity, and willingness to negotiate.

While first-come, first served definitely had its benefits, especially for early applicants, the negatives outweighed the positives. The more a utility scale waits, the less flexible it is. Long term, this could

potentially cost more than an early, more limited entrance.

Another significant benefit of early connection: Grid fee exceptions.

Under the German Energy Industry Act (EnGW), storage systems commissioned before August 2029 will benefit from 20 years of grid fee exceptions.

Now, analysing the new procedure a bit more, there are 3 focus areas:

1. Maturity

2. Compliance with minimum requirements

3. Regular cycles of processing applications

Deadlines

The first cycle of maturity assessment as part of the FCAs, started on April 1st 2026, and strictly ends on June 30th 2026, with all applicants having received feedback by November 30th 2026. Selected applications can proceed by paying an implementation fee of 1.500 €/MWh, by December 31st 2026. The capacity of rejected offers will be reallocated on a one-time basis in January 2027.

Germany is rapidly accelerating energy storage operations, as they are striving to achieve carbon neutrality by 2045, and expand storage capacity by 100+ GWh by 2030.

As a company that has operations in both Greece and Germany, Apollo Green Solutions is glad to see that decision makers understand the problems with delayed storage connection, and are not only proposing, but also implementing new strategies to achieve environmental goals. It’s a relief to see that steps are being taken to change strategies to accommodate efficiency, as well as solutions finally taking shape.

Storage and flexibility go hand in hand and we increasingly see the importance of energy system visualization and control, especially for companies that are planning to, or already participating in, arbitrage trading. It’s not only a matter of investing in renewables, but also short-term and long-term planning, asset control, maximum efficiency, and being flexible towards a never-ending energy market reshape.

If you are developing utility scale storage projects or navigating evolving grid connection frameworks across Europe, Apollo Green Solutions is ready to support your next stage of deployment.