RWE and PPC have completed nine photovoltaic plants with a combined capacity of 930 MWp (about 884 MWac) on the site of the former Amynteo lignite mine in Western Macedonia. The projects were developed through Meton Energy, which is owned 51% by RWE and 49% by PPC. The partners said the output is expected to cover the annual electricity consumption of more than 400,000 households.
Meton Energy is now developing an additional 567 MW across the Kotyli and Neo Syrakio projects. Commissioning is scheduled for 2027. PPC’s broader renewable strategy targets 19 GW of renewable capacity by 2030, supported by an investment programme of approximately €24 billion.
Greece adds solar capacity while capture values soften
During 2025, Greece added more than 2.2 GW of solar capacity, raising its cumulative total from 8.82 GW to 11.5 GW. The expansion has increased energy independence while also reducing the market value of additional daytime generation. Greece’s reported solar capture value was €43/MWh.
The reported capture value was below figures in neighbouring markets including Croatia at €69/MWh, Slovenia at €60/MWh, Romania at €58/MWh, and Bulgaria at €57/MWh. Generation capacity growth has been outpacing the system’s ability to absorb low-cost midday electricity. This dynamic has put pressure on solar capture prices and increased the risk of curtailment.
Batteries gain value as hybrid designs become central to financing
The economics of storage are moving in the opposite direction. Greece’s indicative battery value reached €798/MW, described as among the highest levels in Europe. The combination of declining solar capture prices and strong storage spreads is reflected in project design discussions.
The source data links these conditions to a shift toward hybrid configurations for new Greek renewable projects rather than additional unprotected photovoltaic capacity. It also notes that capital requirements could be substantial for retrofits. Retrofitting hundreds of megawatts of solar capacity with two-hour battery systems could require several hundred million euros, depending on connection requirements, battery duration, and project configuration.
Grid access, dispatch rights and contract structures remain key variables
Financing for storage-linked solar projects will depend on clarity around grid access, dispatch rights, and curtailment compensation. It will also depend on whether revenues can be structured to combine wholesale arbitrage with ancillary-service income. These elements are presented as determining factors for bankability.
PPC and RWE are described as having a structural advantage due to portfolio size, which allows diversification of generation profiles and internal energy-management capabilities. Smaller independent producers face higher exposure to negative prices, imbalance costs, and merchant-revenue volatility. For these developers, bankability is said to increasingly rely on corporate PPAs with floor prices, storage integration, or revenue-sharing arrangements with energy traders.
Amynteo redevelopment continues lignite-to-solar transition into a storage test
The redevelopment of Amynteo is described as a significant industrial-transition outcome, replacing lignite production with nearly 1 GW of solar generation. The next phase is framed around whether storage deployment, transmission investment, and market reform can preserve the value of that electricity. This is set against a backdrop where Greece’s power system faces increasing saturation from renewable generation.
