In a significant development for the renewable energy sector, Croatia’s recent auctions for guarantees of origin (GOs) have successfully sold a total of 313,162 GOs. Held on April 28, the auctions were facilitated by HROTE and ENNA Next and conducted through the CROPEX trading platform, featuring six parallel sessions that included wind, biogas, biomass, and solar energy certificates.
The majority of the auction activity was dominated by wind energy, with HROTE selling 258,578 GOs from wind power plants for electricity generated in the first quarter of 2026 at a price of 1.32 €/GO. Additionally, 30,483 GOs from biomass power plants were sold at 1.26 €/GO, underlining the significant role of wind generation assets in this auction cycle.
ENNA Next contributed to the auction with a variety of smaller batches. This included 15,026 GOs from Croatian wind power plants (for production in January and February 2026) priced at 1.30 €/GO, alongside 8,082 GOs from German wind power plants for the same production period sold at a higher rate of 1.45 €/GO. This pricing suggests a stronger market valuation for imported renewable certificates.
The auction also featured additional sales comprising 360 GOs from biogas plants, 296 GOs from solar installations, and 337 GOs from biomass facilities—all produced between December 2025 and February 2026—each sold at a uniform price of 1.22 €/GO.
This auction cycle illustrates a consistent demand for renewable-backed certificates within Croatia’s energy market. The predominance of wind energy guarantees in trading volumes reflects both technological advancements and market confidence in renewable resources while highlighting the varying perceptions of value across different technologies and geographic origins.
