Post-EEG Marketing of Wind Turbines

Due to a limited funding period of 20 years, an increasing number of wind turbines (WTs) will fall out of EEG support in the coming years. By 2025, these are WTs with an installed capacity of 16 GW that are no longer in EEG support and need to evaluate alternative marketing options. In principle, there is the possibility of repowering the plants, but this often fails due to location and approval issues. Alternatively, old plants can be marketed using a model based on a fixed price, a model based on the average market value of wind energy, or a model based directly on the exchange price. In addition, the exchange price-oriented option often has variants that allow for optimized operation of wind turbines with an omission of feed-in during periods of negative prices.

In a short study for the company SkyPower Windenergie e. K., FfE evaluated different marketing options. In the figure shown, the monthly market values for two exemplary wind farms (with and without feed-in during negative prices) are compared to the average monthly market value of wind onshore. Depending on the feed-in characteristics of a wind farm and, if necessary, an anticyclical mode of operation, marketing via the average monthly market value or marketing directly linked to the exchange price may be more economical.

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