ČEZ explained: the state-controlled giant behind Czech electricity

Open a Czech electricity bill and there is a fair chance the money ends up, directly or not, at a company in the south of Prague called ČEZ. The name is short for České energetické závody (Czech Energy Works), and it sits on power stations, distribution cables, charging points and advertising hoardings. Few companies are so tangled up with how Czechs heat their homes and what politicians say about national security.

Here is how it is owned, what it does, and where the arguments are.

Ownership

ČEZ was created in 1992 as a joint-stock company out of the state's electricity monopoly and has been partly privatised since. The Czech state, through the Ministry of Finance, holds about 70 per cent. The rest is with institutional investors and small shareholders, and the shares trade on the Prague Stock Exchange (as of 2026; check the company's investor pages). Control matters: the state appoints the board through the general meeting and shapes the dividend policy.

Bringing the whole company under state ownership has been debated for years and became government policy after the 2025 elections. The idea is to buy out the minority shareholders, and it is tied to a restructuring of the group (as of 2026; check the company's announcements and the Ministry of Finance). How and at what price a buy-out would happen is for the government and the shareholders to settle, and it is contested. Read the company's official notices rather than press speculation.

What ČEZ generates

Nuclear power is the core. The Dukovany plant in the Vysočina region has four reactors that began operating between 1985 and 1987. Temelín, in South Bohemia, has two larger ones that started around the turn of the millennium. Between them they supply roughly two-fifths of Czech electricity (as of 2026; check the Energy Regulatory Office and the Czech Statistical Office). Nuclear output runs round the clock, so it forms the base on which other sources are layered.

The second pillar is coal and lignite, mined in North Bohemia and burned at large stations such as Prunéřov, Ledvice and Počerady. Coal is in retreat as European carbon prices rise, and the government's coal commission has recommended ending coal power by the late 2030s. ČEZ has stated its own phase-out aims (as of 2026; check the company). Gas, hydro, solar, wind and biomass fill out the mix, and the company says it intends to expand renewables and storage. Its own part in the solar story is told in the Czech solar boom.

The new-build programme at Dukovany is the biggest industrial project in the country. In 2024 the government picked the Korean company KHNP to build new units at the site, after a tender that drew disputes over bids and procedure. Cost and timescale are enormous, with commissioning expected in the 2030s, and financing depends on state support and on EU state-aid rules. For the latest contract status, ask the company and the government.

Beyond generation

ČEZ is also a retailer and a distributor. Its distribution arm, ČEZ Distribuce, owns and runs the electricity networks across large parts of Czechia (gas networks are a separate business; check ČEZ's annual report for any gas-distribution holdings), while the sales arm supplies households and businesses in competition with other suppliers. The high-voltage transmission grid belongs to a separate company, ČEPS, which runs the national system and balances supply and demand in real time. EU rules require transmission owners to be separate from generators and suppliers, hence the division. The Energy Regulatory Office (ERÚ) sets the regulated parts of the price, including network charges, and licenses market participants.

The group also installs solar panels, sells heat pumps, runs charging stations for electric cars and offers efficiency services. That is its answer to a market where customers increasingly make their own power.

Abroad

In the 2000s ČEZ expanded across Central and South-Eastern Europe, buying generation and distribution assets in Bulgaria, Romania, Poland, Turkey and elsewhere. The wind farm complex in Romania, completed in 2012, was among the largest onshore wind projects in Europe when it opened. In recent years the company has pulled out of several foreign markets and refocused on Czechia and a few other countries, partly because of regulatory trouble and partly with the encouragement of the state owner (as of 2026; check the company's reports).

Prices, regulation and politics

ČEZ turns up whenever prices do. The surge in wholesale energy prices in 2022 hit households and firms and led the government to bring in a price cap and a windfall levy on energy producers' profits, which hit ČEZ directly. Critics argued that a state-controlled company should have used its cheap nuclear base to shield consumers. The company replied that it had to follow market rules and EU law, and that interventions such as the levy took a large share of its profits. How the shock fed into prices generally is covered in Czech inflation targeting and how the consumer price index is measured.

For a household the practical points are short. You can choose and switch electricity supplier. The network charge depends on your area and the regulator's decisions. And your supplier is not necessarily your distributor: change supplier and the power still arrives over the same grid.

Jobs, regions and the transition

ČEZ is a large employer, and many of its jobs sit in regions built around energy: the coal districts of North Bohemia and the areas around the nuclear plants. So the transition has a social side. When coal plants close, workers need retraining, local suppliers lose contracts and municipalities lose tax income. The state and the EU have set up funds for coal regions, and ČEZ has said it will convert some sites to other uses such as solar parks, storage and heat supply. The pace is argued over by government, company, unions and local councils.

For consumers the transition shows up as choices: rooftop solar, heat pumps, home batteries. The rules for selling electricity back to the grid, and the subsidies on offer, are set by the state and change from time to time, so check the Energy Regulatory Office and the state programmes before spending money.

Reading company news

ČEZ's investor pages carry annual reports, financial statements and announcements in English. The Energy Regulatory Office publishes price and market data, and the Ministry of Industry and Trade sets energy policy. On the tax side, Czech corporate income tax explained shows how profit becomes a tax bill, and the Czech commercial register shows who owns what.

Frequently asked questions

Who owns ČEZ?

The Czech state holds about 70 per cent through the Ministry of Finance. The rest is held by other investors. Plans for full state ownership are under discussion.

How much of Czech electricity is nuclear?

Roughly two-fifths in recent years, from Dukovany and Temelín. Check the Energy Regulatory Office for the latest figure.

Who will build new reactors at Dukovany?

The Korean company KHNP was selected in 2024. Check ČEZ and the government for the latest contract status.

Is ČEZ the only electricity supplier?

No. Households can choose among several suppliers and switch.

To see where your own electricity comes from, ask your supplier for its energy mix, which it is required to disclose.