energy star.gov
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Energy Star is a U.S. government program (EPA/DOE) that helps homes and businesses save energy and money through ENERGY STAR certified products, labeling, and practical energy-efficiency guidance. The site offers product finders, tools like Portfolio Manager for benchmarking, building and appliance resources, and tips to reduce energy use.
More resources on Energy Efficiency
YourHome - Energy Efficiency
The Australian Government's guide to sustainable home design; its energy chapter covers heating and cooling, hot water, lighting, appliances, renewable energy, and batteries. Readers learn which design choices and upgrades cut household energy use and running costs.
Energy.gov Saver
The U.S. Department of Energy's consumer guide to home energy use: insulation and air sealing, heating and cooling, water heating, lighting, appliances, and home energy audits. Readers learn where a house loses energy and which upgrades reduce utility bills.
U.S. Department of Energy
Official website of the U.S. Department of Energy, covering federal energy policy, the national laboratories, and programs in renewables, nuclear, fossil energy, grid modernization and efficiency. Readers find authoritative explainers, research news, funding opportunities and consumer guidance on home energy use.