This installation is actually also co-located with renewables:

> It cooperates with a 53-hectare ground-mounted PV system operated by Solizer in direct proximity, which is supposed to deliver a peak output of 72 MW (MWp). Due to changes in tender conditions, large solar power projects and battery storage systems are increasingly being planned together.

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As obliquely referenced with the "changes in tender conditions", solar overproduction now causes negative midday electricity prices on a near daily basis in Germany from April through to October so long as it's not super cloudy.

Therefore, anyone with a solar installation that doesn't get a special constant feed-in rate for their electricity (no longer available for commercial entities) would actually pay money to feed their solar into the grid.

Therefore it's absolutely vital for new solar in Germany to have batteries on-site so they can sell later in the day, otherwise they're simply unprofitable.