Business
TransAlta Provides Notice to Mothball Sheerness Unit 1
CALGARY, Alberta, Dec. 18, 2025 (GLOBE NEWSWIRE) -- Alberta Power (2000) Ltd., a subsidiary of Tr...
About this update from Transalta Corporation
[{"type":"text","content":"TransAlta Provides Notice to Mothball Sheerness Unit 1\nCALGARY, Alberta, Dec. 18, 2025 (GLOBE NEWSWIRE) -- Alberta Power (2000) Ltd., a subsidiary of TransAlta Corporation (TransAlta or the Company) (TSX: TA) (NYSE: TAC), provided notice to the Alberta Electric System Operator on December 18, 2025, that Sheerness Unit 1 will be temporarily mothballed effective April 1, 2026, for a period of up to two years. TransAlta maintains the flexibility to return the mothballed unit to service when market fundamentals or contracting opportunities are secured. The unit will remain available and fully operational through the winter season and Sheerness Unit 2 will remain fully in service. \"We have made the prudent financial decision to temporarily mothball Sheerness Unit 1 while reserving it for future economic opportunities. There is significant value at our Alberta thermal sites and we remain very pleased with the continued progress on our data centre strategy. Today's decision ensures we preserve the long-term optionality of the asset,\" said John Kousinioris, President and Chief Executive Officer. About TransAlta Corporation: TransAlta owns, operates and develops a diverse fleet of electrical power generation assets in Canada, the United States and Australia with a focus on long-term shareholder value. TransAlta provides municipalities, medium and large industries, businesses and utility customers with affordable, energy efficient and reliable power. Today, TransAlta is one of Canada’s largest producers of wind power and Alberta’s largest producer of thermal generation and hydro-electric power. For over 114 years, TransAlta has been a responsible operator and a proud member of the communities where we operate and where our employees work and live. TransAlta aligns its corporate goals with the UN Sustainable Development Goals and the Future-Fit Business Benchmark, which also defines sustainable goals for businesses. Our reporting on climate change management has been guided by the International Financial Reporting Standards (IFRS) S2 Climate-related Disclosures Standard and the Task Force on Climate-related Financial Disclosures (TCFD) recommendations. TransAlta has achieved a 70 per cent reduction in GHG emissions or 22.7 million tonnes CO2e since 2015 and received an upgraded MSCI ESG rating of AA. For more information a...