| EPA Approves Nationwide Sales of E15 and Removes Barriers to Sale of E10 U.S. Environmental Protection Agency Administrator Lee Zeldin, in consultation with U.S. Department of Energy (DOE) and in accordance with the Clean Air Act (CAA), issued a temporary emergency fuel waiver to allow nationwide sales of E15, gasoline blended with 15% ethanol, and to remove all federal impediments to selling E10, gasoline blended with 10% ethanol, across the country. | Biomass | Woodchuck Partners with Walbridge to Help Advance Customers' Construction Sustainability Goals Woodchuck, the AI-powered climate-tech startup redefining how construction and manufacturing industries handle wood waste, announced a joint sustainability initiative with Walbridge, one of the nation's top industrial and automotive constructors. The program supports Ford Motor Company's construction waste-reduction efforts at its new manufacturing facility in Marshall, Mich. | Electric/Hybrid Geothermal Hydrogen Germany Hyting cuts heating costs with hydrogen hybrid system in latest customer installation Jane Marsh | Designing a Net-Zero Home: The Role of HVAC in Renewable Energy Systems Net-zero homes manifest through an intricate combination of construction and building management tactics. Renewable energy experts see opportunities in every corner of a structure, but refining the relationship between HVAC and green generators is one of the most pivotal. These integration strategies are the path forward for carbon-neutral business operations and family living. | Miscellaneous | Heat pump sales show EU focus on electricity tax is right call say EHPA New analysis from the European Heat Pump Association (EHPA) has found that cost reduction was crucial to the recent 10 percent jump in heat pump sales, in which sales increased in 12 out of 16 European countries in 2025, mainly because of government assistance with upfront purchase costs. | Octopus Energy takes majority stake in Uplight to scale flexible, digitalised grids across North America The Netherlands Three schools and a childcare centre in The Hague to be heated by sports field Panorama PV UK Government to make “plug-in solar” available within months and requiring developers to install heat pumps Sally Kuzniewski | A Closer Look at Geothermal In Iceland, geothermal energy is the second largest source of energy consumption, accounting for 27.5% consumption and has emerged as the primary source of space heating since 1971. In 2021, Iceland’s major geothermal power plants produced a combined total of 5,788 GWh per year which was up from approximately 1,400 GWh per year in the year 2005 (Ragnarsson, 2023). | Wind US Dept. of Interior and TotalEnergies Agree to End Offshore Wind Projects Equinor and Rio Energy order Vestas turbines for 230 MW Wind Project in Brazil Agenda Hydrogen Conference The North American Biocarbon Conference |