Northern Lights: Large-Scale Solar Power Is Spreading Across the U.S.

Watergate Estate is working on two issues in South Africa: affordable housing and renewable energy. The housing development is installing solar panels for its residents that are being bought by people all over the world using cash or bitcoin as a way to offset their own carbon costs. Not everyone agrees that gated communities like this are helping to fight social inequalities, crime, and unemployment, but about 470 people bought solar cells for the apartment complex and some residents say they feel safer in their community.

To make their restaurant more energy efficient and to cut its carbon footprint, The Publyk House utilized the services of Efficiency Vermont, a publicly funded energy efficiency utility. As part of their Deep Energy Retrofit program, the utility helped install insulation, LED lighting, and high-efficiency appliances at the restaurant, allowing them to save 50 percent on energy in two years. Since the start of the program, 10 businesses have been able to cut their energy consumption in half.

The Red Lake Nation in Minnesota is building a 240-kilowatt solar array on top of a workforce training center, which will generate about half of the building’s electricity. This project was financed through crowdfunding, where they raised $250,000 from religiously inclined microlenders. The goal: to allow the tribe to have energy sovereignty, create higher-paying jobs, and maintain a healthy environment.

A cryptocurrency mining company in Texas called Layer1 can power down its data-processing centers and sell its unused electricity back to the power grid. Instead of passively consuming energy, they are able to utilize batteries, smart meters, and artificial intelligence software to use more renewable energy and, at the same time, make a profit. While scaling this response can be difficult due to restrictions from utility companies on how consumers get their energy, Layer1 estimates it will save up to $6.7 million annually by cutting production for 30 minutes during some of the hottest days in the summer.

One of the greatest challenges to integrating renewable energy sources into the power grid has been the issue of storage - where and how to keep power generated during off-hours (such as overnight) when demand is low. While batteries are on the rise as one solution, an Alabama power plant has discovered a natural way of storing energy until it is needed: pumping air into salt caverns.

New York is determined to become a national leader in the renewable energy sector, and they are leveraging numerous approaches to help integrate better and more environmentally conscious technologies into the grid. The multi-faceted approach includes updating laws and regulations to be more renewables-friendly, hosting competitions to foster entrepreneurship and creative solutions in the field, piloting new technologies, and creating better incentives for utility companies.

The United Kingdom is finding creative ways to simultaneously address renewable energy needs and waste disposal. Combined Heat and Power (CHP) plants are utilizing chicken manure from farms and coffee grounds to create electricity. The initiatives have the added benefit of improving standards for the treatment of poultry, as well as reducing the distribution of harmful toxins from the waste.

An economic shift to renewable energy could take decades, but thanks to rapidly evolving disruptive technologies, dropping prices of solar and wind power sources, and increasing market demand for green business, the new age of renewable energy could encompass the world economy much more quickly.

A collaborative effort among the United Nations' District Energy in Cities Initiative, the Malaysian government, and private partners has facilitated planning in Malaysia's rapidly developing southern state of Johor for a "District Energy System": a single heating and cooling network which decreases energy consumption by converting waste heat from large power stations. Because of this intervention, Iskandar is projected to decrease its energy use by almost 40% -- all while saving money on energy costs, recycling heat energy, and contributing to the nation's goals under the international Paris Accord.

Samsø, a small island in Denmark, has done what no other city has reached; energy independence. People on the island use a combination of wind, solar, and biomass, energy. How is such a large feat accomplished? Local leaders say it wasn’t because of technological breakthrough, but through collective action.