Slovenian power utility HSE has secured a construction permit for a solar and battery project at the former Kamnolom Zagorje municipal landfill in Zagorje ob Savi. The development is linked to plans for site redevelopment in 2027.
Planned generation, storage and expected output
The project includes a 1.38-MW solar plant and a 1.25-MW/5-MWh battery system. Annual electricity production is estimated at 1,437 MWh. The battery is designed as a four-hour storage unit to hold part of the solar output for later release. This configuration is intended to improve interaction with the distribution network and provide flexibility for local generation.
Land drainage works and Just Transition Fund financing
The scope also covers drainage works aimed at improving rainwater management and reducing infiltration into the former landfill body. Part of the investment is expected to be financed through Slovenia’s Just Transition Fund.
Policy objectives tied to landfill redevelopment
The project combines three policy objectives: new renewable generation, electricity storage, and rehabilitation of degraded land. In HSE’s framing, former industrial and municipal sites are positioned as an option to expand renewables without competing for undeveloped land. The company notes that this constraint is likely to become more significant as Slovenia’s solar pipeline grows.
