Grid Fees and Saturation: Germany's Battery Outlook - Modo Energy

Germany's battery storage market is booming - but a saturation crunch is coming, and most investors aren't ready for it. The question is which revenue streams hold up, and which collapse the way they did in GB, Texas, and Australia.

Ed sits down with Till Stehr, German Research Analyst, and Cosima from the Advisory Services Team at Modo Energy, to map the real structural drivers, and risks, behind German BESS returns.

They cover:

• Why German battery saturation is closer than the market thinks - FCR is already saturated, with aFRR close behind.

• Why German battery revenues near €200,000/MW/year for a two-hour system are more about timing than structure.

• What makes Germany's intraday market the most liquid in Europe and the €1,000+/MWh spikes batteries feed on.

• How flexible connection agreements are quietly reshaping returns, from ramp rates to export caps.

• What German grid fees look like after the 2029 exemption and why dynamic fees are locational pricing through the back door.

Got a question about the German BESS market? Ask Ko, Modo Energy's AI analyst: https://modoenergy.com/sign-up?utm_source=podcast&utm_medium=youtube&utm_campaign=till_cosima&utm_content=ko_signup

Chapters:

00:00 – An Introduction tGermany's Battery Storage Market

00:50 – What Investors Get Wrong About Germany

02:33 – Why Ancillary Services Saturate Fast

03:47 – German Battery Revenues: €200k per MW

05:24 – Structural Value: Solar and Intraday Trading

06:30 – Redispatch Costs and Locational Pricing

08:04 – FCR and aFRR Explained

09:37 – Battery Saturation and the Overbuilt Ratio

14:08 – Europe's Most Liquid Intraday Market

18:50 – Battery Interconnection: Friend or Foe?

21:52 – Negative Power Prices in Germany

25:36 – Flexible Connection Agreements Explained

32:19 – Battery Inertia and Grid-Forming Inverters

35:53 – German Grid Fees: What's Announced

40:37 – Contrarian Views: DSOs and Locational Pricing