Auctions for CHP installations and innovative CHP systems significantly oversubscribed
Year of issue 2025
Date of issue 2025.07.08
The Bundesnetzagentur has today announced the results of the latest auctions for combined heat and power (CHP) installations and innovative CHP systems. The two separate auctions closed for bids on 1 June 2025. CHP installations generate electricity and useful heat. Innovative CHP systems use a high proportion of heat from renewable energy sources and therefore have a particularly high level of energy efficiency and a low level of greenhouse gas emissions.
There was a considerable increase in the number of bids submitted in both of the auctions compared with the previous ones. Both auctions were significantly oversubscribed, with competition among bidders leading to lower average award prices.
Auction for CHP installations
A total of 37 bids with a combined volume of 145.534 megawatts were submitted on time for the volume of 89.98 MW up for auction for CHP installations. The auction was therefore significantly oversubscribed, with about three times as many bids as in the last auction, when 12 bids were submitted. There were 31 admissible bids (129.583 MW) and six inadmissible bids (15.951 MW).
A total of 17 bids with a combined volume of 88.012 MW were successful. The award prices range from 4.99 cents per kilowatt hour to 6.38 ct/kWh. The average volume-weighted award price is 5.73 ct/kWh, which is below the average award prices in the last two auctions (6.00 ct/kWh and 6.51 ct/kWh) and considerably lower than the maximum possible price of 7.00 ct/kWh.
Auction for innovative CHP systems
A total of 24 bids with a combined volume of 74.445 MW were submitted for the volume of 29.970 MW up for auction for innovative CHP systems. This auction was therefore also significantly oversubscribed. The number of bids was nearly twice as high as in the last auction, when 13 bids were submitted. All of the bids submitted were admissible.
Eight bids with a combined volume of 25.340 MW were successful. The prices of the successful bids range from 5.98 ct/kWh to 7.90 ct/kWh. The average volume-weighted price of the successful bids is 7.15ct/kWh. This is considerably lower than the average award prices of 9.84 ct/kWh in the last auction and 11.25 ct/kWh in the last but one auction. The maximum possible price was 12.00 ct/kWh.
Details of the successful bids are available online (in German):
CHP installations:
www.bundesnetzagentur.de/1057134
innovative CHP systems:
www.bundesnetzagentur.de/1057128
The next CHP auctions will close for bids on 1 December 2025. Information on the auctions will be posted in advance on the Bundesnetzagentur’s website.