Responsible for nearly 40 percent of global climate emissions, buildings are critical to the government’s response to climate change. As lawmakers and climate advocates look for new policies that will curb greenhouse gas emissions from the built environment, the old rallying cry for energy efficiency is being replaced by calls for policies that drive building decarbonization. This leads to the question, just where does energy efficiency fit in this broader goal of decarbonization?
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Despite the ongoing pandemic, 2021 was a record-breaking year for investment in the energy transition and renewable power, battery storage, and sustainable transportation, according to the 2022 Sustainable Energy in America Factbook, published by BloombergNEF (BNEF) and the Business Council for Sustainable Energy (BCSE). This tenth annual edition of the Factbook concludes that unprecedented injection of new capital into companies, technologies, and projects, as well as a wave of supportive new policies, drove the growth in clean energy transition and energy efficiency.
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This week, Residential Energy Services Network (RESNET) reported that 313,153 homes received a Home Energy Rating System (HERS) Score in 2021. The number of HERS homes continues to break records, having eclipsed the 299,775 in 2020. More than 3 million homes have been rated since the inception in 1995 of HERS scores, which are a home’s equivalent of a miles-per-gallon rating for cars.
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According to a report issued by the National Oceanic and Atmospheric Administration (NOAA) this week, 2021 was the sixth warmest year on record.[1] Further, the hottest decade ever recorded occurred between 2009 and 2019.[2] The planet’s warming trend is forcing home builders globally to get creative to address the challenges we’re confronting. Here are five ways the climate is reshaping housing.
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New research released this week from the American Council for an Energy-Efficient Economy (ACEEE) shows that deep home energy retrofits could halve homes’ energy use and emissions.
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E2 has published new, interesting data on clean energy jobs by congressional districts. Clean energy employment[1] (jobs in renewable energy and energy efficiency) accounts for 3 million U.S. jobs, and the sector will likely grow following the passage of the massive infrastructure bill. E2’s searchable database allows users a closer look at where those jobs are.
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Each year since 2013, the U.S. Department of Energy (DOE) Housing Innovation Awards recognize forward-thinking builders who construct homes that are Zero Energy Ready (with net zero achievable with the addition of solar panels). Among the winners of the 2021 Housing Innovation Awards is Milwaukee-area builder Tim O’Brien Homes, which took a top prize for a 3,000 square foot high-performance custom home insulated with blown-in fiberglass insulation.
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While some states have aggressive stretch energy code requirements, other states lag in their efforts. A new report from WalletHub, a personal finance company, analyzes data from various government agencies in 48 states and ranks each in their building, auto, and transportation efficiency. The report finds that Utah is the most energy-efficient state while South Carolina is the least. So how does your state rank?
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Next Wednesday, October 6, marks the sixth celebration of Energy Efficiency (EE) Day 2021 (EEDay2021). EE Day is a collaborative effort including dozens of energy efficiency advocacy groups in the U.S., including the American Council for an Energy-Efficient Economy (ACEEE), Alliance to Save Energy, National Resources Defense Council, and regional energy efficiency organizations. The goal is to encourage consumers and organizations to save money, cut pollution, and create jobs by focusing on energy efficiency.
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In home construction, getting great air sealing and insulation are the Holy Grail in delivering a high-performance home with an effective thermal envelope. The prevailing belief among many in the building industry is that only spray foam insulation can deliver the thermal performance and airtightness that is required but that simply isn’t true. Moreover, installed costs are a top consideration for most builders, thus finding products that can help builders meet thermal performance and airtightness targets for less is important. Insulation Institute looks this week at new case studies for residential construction that show even the most aggressive airtightness targets can be met cost-effectively without using spray foam.
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