This time, we’re not writing about our model battery – we want to show what choices an investor faces when deciding on the energy capacity and duration of a battery storage system.

The chart shows the change in 12-month revenue for a 1 MW battery across different durations (RTE 0.85, DoD 100%) between April 2024 and March 2025.

📊 What do the results show?

• Operation for 1h (1 MWh) → 216k PLN during the analyzed period
• Extending to 2h → revenue increases by +86%
• Extending from 2h to 4h → another +63% increase
• Extending from 4h to 5h → +13% increase

🔍 Conclusion:

Each additional MWh of installed capacity (with unchanged power output) brings a smaller incremental revenue increase.

The most significant jump occurs when extending to 4h – further increases yield diminishing returns.

Choosing the optimal battery duration is key to a successful investment – decisions should be based on solid, data-driven analysis.

Want to find out which configuration would be optimal for your project, taking into account various revenue streams?

📩 Get in touch: contact@flexplum.com

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How does extending battery duration impact revenues?

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