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  • Energiesprong wants every home to be net-zero

    Inspired by the Dutch concept of “Energiesprong,” or “energy jump,” a developer in France retrofitted a group of townhouses for social housing to be more environmentally friendly. They installed polyurethane facades to avoid heat loss and solar panels on the roof. Upgrading the units to be more green cost more than a conventional retrofit, but over time, energy bills were cut in half. These green retrofits are being implemented in towns around the world and could be a model for developers that want to reduce their carbon footprints.

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  • Embracing the light: Churches tap solar power

    Over 70 Catholic dioceses in the Philippines have entered into an agreement with energy resource company WeGen Laudato Si to install solar panels on their parishes, schools, and other buildings. The Diocese of Maasin on Leyte Island became the first in the world to completely shift to renewable energy. Installing the panels can be expensive, but shifting to solar has saved one diocese at least 100,000 pesos a month in energy bills.

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  • The Schools at the Front Lines of Solar

    After talking about solar panels with his students, a teacher at a middle school in Minnesota worked with the school board to raise funds to install a rooftop solar panels for the entire district. All five of the school district’s buildings have a 40 kilowatt hour display that could end up saving them up to $6 million over 30 years. The cost of installing these systems can be expensive, but this effort can save money and reduce a school’s carbon footprint in the long run and even be an educational opportunity for students.

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  • The secret ingredient in Paris' green public housing

    Paris Habitat, the city’s main social housing agency, used hempcrete — a concrete-like mixture of hemp, lime, and water — as insulation in one of its apartment complexes. This material helps maintain temperature and reduces a building’s energy use and greenhouse gas emissions. The cost of using hempcrete can be expensive but making the material is more environmentally friendly, and has shown that it can be implemented for affordable housing and not just for those who already have the means to pay for it.

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  • What Went Into Building Europe's Largest Floating Solar Park

    Evides Waterbedrijf, a drinking water company, created Europe’s largest floating solar park. They installed almost 3,000 solar panels on an island in the middle of a reservoir that allows it to move with the sun to maximize its energy. This setup generates about 15 percent of the electricity the company uses at the site.

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  • How to reuse a demolished building

    A warehouse in Switzerland is being transformed into new creative workspaces. The catch: It’s being constructed out of reused building materials. About 70 percent of it is being made from old materials like wood floorboards, steel beams, and windows. A network of treasure hunters are on the lookout for used materials that can be used in constructing these buildings. The workspace is nearly complete and it already has tenants for all of the spaces. They were also able to cut the building’s carbon emissions in half.

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  • The Hottest Amenity From Developers? A Power Plant Made of Batteries.

    An apartment complex in Utah includes a solar battery in every apartment allowing the resident, power utility, and building developer to save costs for generating electricity. Through a unique partnership, the power systems can provide 12.6 megawatts of power for the building, which translates into residents saving up to 40 percent on the energy bills. This setup might not be easy to scale, but the developer plans to expand the model in other states.

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  • The EV tax credit can save you thousands — if you're rich enough

    A tax credit was supposed to incentive Americans to buy electric vehicles, but testimony from car buyers and research has shown that only people who can afford the full purchase are getting access to the benefit. The tax break gives electric car purchasers a credit on their taxes the following year, but only as much as they owe the government. The purchase could end up costing more than buyers expected, which can be a barrier for people who want to switch to electric.

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  • It looks like the Batmobile, works on solar energy, and could be the future of cars

    Aptera Motors, a California-based startup, is poised to roll out the first mass-produced solar vehicle this year: for $25,900. The car is a three-wheel, aerodynamic electric vehicle covered in solar cells that can provide energy to drive about 40 miles. The model is not 100 percent efficient with some energy lost in its electrical current conversion and in its drive system, but the creators say it is four times more effect than an average electric vehicle. Still, when the company started taking preorders, they sold out of its first 330 vehicles in 24 hours.

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  • Ten years after Fukushima: could new fuels make nuclear power safer?

    After the 2011 Fukushima nuclear disaster, scientists are looking for ways to ensure the future of nuclear power is safer. One possibility is improving the protective barrier that surrounds the fuel pellets. They coated the fuel road with chromium and in tests, the new coatings performed well. However, modeling suggests that the chromium-coating might not provide enough time to stabilize a power plant during a meltdown. Still, these materials have started to appear in commercial nuclear reactors and could help reduce fuel waste and save money.

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