September 2026 - a new record for our model battery

FlexPlum Team
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October 07, 2026
Our model battery (2 MW, 4 MWh, RTE 0.86, DoD 100%), optimized on DA + IDC markets, could have generated as much as 126.2 kPLN in revenue in September.
📊 The strongest result since the market reform
This is the strongest result since the market reform, averaging 4,206 PLN per day. The 12-month rolling revenue has now increased to around 966 kPLN.
⚠️ A proposed tenfold increase in concession fees
At the same time, Poland's Ministry of Energy has proposed a 10-fold increase in the concession fee coefficients.
To put this into perspective, selling 1 MWh at 1,000 PLN/MWh results in:
- A 0.50 PLN concession fee under the current rules.
- A 5 PLN concession fee under the proposal.
⚡ What could this mean for intraday trading?
For active intraday trading, this could increase optimization costs and reduce the incentive to place some orders, potentially affecting market liquidity as well.
💬 Tell us what you think
How do you think higher concession fees could affect the intraday market and BESS revenue opportunities?
Share your thoughts in the comments on LinkedIn:
September 2026 - another new record for our model battery
#EnergyStorage #FlexPlum #BESS #September2026 #StorageRevenue #DAIDC #Intraday #EnergyMarket #BESSOptimization #BESSPoland

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