Czech Energy Transition Opens New Solar and Battery Opportunities

The Czech Republic is undergoing a fundamental transformation in its energy sector. Historically reliant on coal and nuclear power, the country is now accelerating its shift toward renewable energy sources, such as photovoltaics (PV) and flexible storage systems, creating significant investment opportunities.

Legacy Built on Coal and Nuclear

For decades, the Czech Republic's energy production has been dominated by coal and nuclear power, accounting for about 75–80% of electricity production in 2023. Six nuclear reactors at Dukovany and Temelín provide baseload power, while coal plants have offered dispatchable capacity. This allowed the country to maintain consistent electricity exports, making it a significant net exporter in Europe.

The Accelerating Coal Exit

However, the coal era is rapidly coming to an end. The Czech government has set 2033 as the target for coal phase-out, but economic realities are pushing this transition ahead of schedule. Rising carbon prices under the EU Emissions Trading System have made coal generation increasingly unprofitable. Several major operators, including Sev.en Energy and ČEZ, are shutting down coal plants years before the deadline.

Strong Policy Support for Clean Energy

To manage this transition, the Czech government is actively supporting investments in renewable energy. The Modernisation Fund, financed through EU carbon allowance auctions, offers substantial grants for photovoltaic installations and battery energy storage systems (BESS). Under the RES+ programme, grants can cover 30–50% of capital expenditure for qualifying projects.
Recent legislation (Lex OZE III) has also cleared regulatory barriers, unlocking the market for BESS. Starting in summer 2026, independent aggregators will be able to pool flexibility from distributed assets and participate in ancillary services markets.

Investment in Flexible Assets

The closure of coal plants removes not only generation capacity but also the flexibility services coal historically provided—such as ramping output to match demand. Photovoltaics, which is growing rapidly in the Czech Republic, does not naturally provide this flexibility.
This creates a widening "flexibility gap" and increasing price volatility. In 2024, the Czech spot market saw over 300 hours of negative electricity prices, more than double the previous year. Battery storage systems present an opportunity for investors, as they can charge during periods of abundant or negatively priced electricity and discharge during peak hours when prices spike. Hybrid projects combining PV with colocated BESS are particularly attractive, capturing subsidy support for both components while offering grid-friendly generation profiles.
The Czech transmission system operator, ČEPS, is certifying battery systems for frequency regulation services, opening new revenue streams previously reserved for thermal and hydro plants.

Outlook

The Czech energy sector is at a turning point. Coal is being phased out, but its exit is creating room for new, flexible, clean energy assets. With strong government support, a modernizing regulatory framework, and growing market demand for flexibility, the investment case for PV and energy storage in the Czech Republic has never been stronger.