London Daily

Focus on the big picture.
Friday, Aug 07, 2026

After 18 years, Europe’s largest nuclear reactor starts regular output

Finland’s much-delayed Olkiluoto 3 (OL3) nuclear reactor, Europe’s largest, began regular output early on Sunday, its operator said, boosting energy security in a region to which Russia has cut gas and power supplies.
Nuclear power remains controversial in Europe, primarily due to safety concerns, and news of OL3’s start-up comes as Germany on Saturday switched off its last three remaining reactors, while Sweden, France, Britain and others plan new developments.

OL3’s operator Teollisuuden Voima (TVO), which is owned by Finnish utility Fortum and a consortium of energy and industrial companies, has said the unit is expected to meet around 14 percent of Finland’s electricity demand, reducing the need for imports from Sweden and Norway.

The new reactor is expected to produce for at least 60 years, TVO said in a statement on Sunday after completing the transition from testing to regular output.

“The production of Olkiluoto 3 stabilizes the price of electricity and plays an important role in the Finnish green transition,” TVO Chief Executive Jarmo Tanhua said in the statement.

Construction of the 1.6 gigawatt (GW) reactor, Finland’s first new nuclear plant in more than four decades and Europe’s first in 16 years, began in 2005. The plant was originally due to open four years later, but was plagued by technical issues.

OL3 first supplied test production to Finland’s national power grid in March last year and was expected at the time to begin regular output four months later, but instead suffered a string of breakdowns and outages that took months to fix.

Russia’s power exports to Finland ended last May when Russian utility Inter RAO said it had not been paid for the energy it sold, a consequence of the widening gulf between Moscow and Europe over the war in Ukraine.

Russian state export monopoly Gazprom shortly after ended shipments of natural gas to the Nordic nation.
Newsletter

Related Articles

0:00
0:00
Close
HMRC’s 2029 Tax Shift Could Overlap Old and New Self-Assessment Bills
Thetford Disorder Prompts Expanded Police Powers Amid Asylum-Housing Protests
Cambridge Faces Calls for Independent Review of Jason Arday Appointment
Scotland’s ‘Cock of the North’ Woodland Is Being Felled After Wind Damage
Reform UK and Greens Unite Against Vast Solar Plans for Kent Marshland
New Zealand Draws Wealthy Americans With Revamped Investor Visa
Senate Panel Votes to Hold Anthony Fauci in Contempt After Fifth Amendment Testimony
Cambridge Professor Jason Arday Resigns as University Opens Inquiry Into His Credentials
Manchester Power Failure Disrupts Trains Across North West Into Friday
UK Fashion and Tourism Sectors Prepare for Strong Summer and Autumn Activity
London Residents Seek Appeal Against Approval for Chinese Super-Embassy Development
UK Environment Officials Issue Biosecurity Alert Over Rising Bluetongue Cases in Livestock
UK Charity Regulator Opens Investigations Into Donations Linked to Israeli Settlements
Gatwick Expansion and Chinese Embassy Plans Highlight Growing UK Infrastructure Disputes
UK Agriculture Authorities Warn of Rising Bluetongue Virus Cases Among Sheep Farms
UK Watchdog Finds Electronic Monitoring Failures Leaving Some Offenders Without Timely Alerts
Metropolitan Police Investigate Covent Garden Knife Attack That Injured Four Men
UK Government Confirms Severe Terror Threat Level as Prevent Programme Expands
Diageo Plans Guinness Expansion While Cutting Jobs Through Global Restructuring Programme
Bank of England Keeps UK Borrowing Costs Stable While Markets Await Future Rate Cuts
Gatwick Airport Wins Approval for Second Runway Expansion After Legal Challenges Fail
Apple Challenges UK Government Over Demand for Access to Encrypted iCloud Data
London Approves First Autonomous Taxi Licences for Wayve and Uber Passenger Trials
UK Artificial Intelligence Safety Institute Finds Advanced AI Models Showing Deceptive Behaviour in Security Tests
UK Small Boat Channel Crossings Fall Forty-Three Percent as Government Highlights France Cooperation
UK Government Plans Procurement Reforms to Boost British Jobs and Domestic Steel Supply Chains
Bank of England Holds Interest Rates at Three Point Seven Percent as Inflation Stays Above Target
EY Raises UK 2026 Growth Forecast to Zero Point Nine Percent as Energy Risks Remain a Concern
UK Artificial Intelligence Regulation and Public Infrastructure Investment Remain Key Policy Focus Areas
Kemi Badenoch Faces Criticism Over Appointment of Former Neo-Nazi Linked Figure to Advisory Role
AG Barr Reports £10 Million Sales Loss After Supply Chain and Planning Failures
UK Government Fast-Tracks Specialist Care Pathways for Motor Neurone Disease Patients
UK Government Connects More Than 60,000 Rural Homes and Businesses to Gigabit Broadband
Next Raises Full-Year Profit Forecast After Strong Summer Sales
Metropolitan Police Arrest Woman After Four Men Stabbed in Central London’s Covent Garden Area
UK Procurement Reform and Infrastructure Spending Signal New Focus on Regional Economic Growth
UK Government Expands Global Talent Visa Access for International Researchers and Innovators
NHS Launches £343 Million Expansion of Community Mental Health Centres Across England
UK Treasury Explores Higher Borrowing Capacity for Infrastructure and Housing Investment
UK Cabinet Office Reforms Procurement Rules to Direct £90 Billion of Public Spending Toward Jobs and Skills
UK Government Considers Public Inquiry Into Jeffrey Epstein’s Activities and Possible Institutional Failures
Britain’s AI Safety Institute Finds Advanced Models Creating Fake Identities and Malicious Code During Tests
Lightning Strike Kills Yala FC Player During Match in Southern Thailand
Senate Scrutinises AI-Driven Personalised Pricing
Spain Seeks Mainland Transfers for 1,100 Children Stranded in Ceuta
UK Government Pushes New Procurement, Skills and Technology Policies Amid Economic Pressure
UK Charity Commission Investigates Donations Linked to Israeli Settlement Groups
UK Government Faces Pressure Over Possible Windfall Tax on Bank Profits
South East Water Provides Emergency Support After Kent Supply Disruptions
UK Defence Supports US Operation to Seize Russian-Flagged Oil Tanker in North Atlantic
×