‘Life changing': Collaborative effort brings free solar panels to low-income families in Greensboro

Apartments at Front Flats, a new residential building in Philadelphia, is powered by 492 solar panels that are wrapped around the building. The point: to demonstrate that developers can design buildings that are energy-efficient and be built at an affordable cost. It’s not clear yet if the building is “net zero” in terms of producing as much energy as it consumes, but residents are paying only $40 a month for utilities.

Mosques across Amman, Jordan are adorned with solar panels, resulting in some very energy efficient places of worship (along with many other buildings). The mosques now cover 100% of their energy needs and can even sell excess energy back to the national grid. The city is aiming to become carbon neutral by 2050, and in addition to recycling, environmental education, and solar water heaters, Amman is expanding their ecotourism industry to attract more environmentally conscious tourists.

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.

Rahr Malting, a brewery in Shakopee, MN, has found a creative way to sustainably address their energy needs. The company partners with the Mdewakanton Sioux Community to use waste barley hulls from the malting factory to generate electricity for their facilities, selling excess power to the public grid while the waste heat sprouts the malt to make beer.

Solar energy is a clean, cheap, renewable, and land-efficient resource, making it a valuable technology to scale up in the face of climate concerns and clean energy. Diversifying the supply chain for creating and sourcing solar panels can help make solar energy more reliable when faced with geopolitical and human rights issues.

The city of River Falls in Wisconsin built the state’s first city-owned solar garden, taking steps to reduce their use of fossil fuels and encourage community members to go green. Now, all city buildings are 100 percent run on renewable energy and residents can sign up for a program allowing them to buy renewable energy. Getting people to take action can be difficult, but city officials say they found the right message to get its residents on board.

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.

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.

Creating sustainable buildings requires rethinking many of the norms in construction and city planning. The Center for Sustainable Landscapes, part of the Phipps Conservatory in Pittsburgh, Pennsylvania, received the first Living Building Challenge (LBC) certification. To achieve this, CSL advocated for changes to Pittsburgh’s laws on the use of public water utilities. CSL also had to seek out construction materials that avoided the use of harmful chemicals-a task easier said than done.

A growing population has led to a growing mountain of trash for Africa. One city is taking control of the issue by turning that trash into energy which not only reduces the amount of physical rubbish by 80 percent, but also powers 30 percent of the city's household energy needs.