June 2026 - stable at a high level

June delivered another strong result for our model battery (2 MW, 4 MWh, RTE 0.86, DoD 100%), optimized on DA + IDC markets. The battery could have generated 92.4 kPLN in revenue, very close to May's result.

📊 The highest daily revenue this year

On a monthly basis, June was almost in line with May (-0.7% month-on-month), but since June has one day less, the average daily revenue increased to 3,080 PLN, the highest level year-to-date.

At the same time, the 12-month rolling revenue declined slightly to around 884 kPLN. This is mainly due to the high base from June 2025, when the battery generated 103 kPLN, or as much as 3,459 PLN per day.

⚡ Volatility remains at a high level

This is now the fourth month in a row with a very similar market picture. It looks like volatility has stabilized at a relatively high level.

There was also an interesting Capacity Market activation day. On that day, our model battery could have earned 4,922 PLN, clearly above the average, but still far from the record on May 2: 9,014 PLN in a single day.

🔥 Do heatwaves create more opportunities?

Given the recent hot days, one question becomes especially interesting: do heatwaves actually increase volatility and improve revenue opportunities for energy storage?

💬 Tell us what you think

Will July maintain this level, or will we see a stronger deviation from the stable trend of recent months?

Share your thoughts in the comments on LinkedIn:

June 2026 - stable at a high level

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