Floating Wind Turbines Buoy Hopes of Expanding Renewable Energy

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.

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.

Boston Metal is transforming how steel is made by replacing coal with electrons. Instead of using the fossil fuel in furnaces to melt iron ores, the Massachusetts-based company uses electric currents to heat the ore, which doesn’t create any greenhouse gas emissions. So far, the company has made only several tons of steel, but it recently received investor funding to expand its work.

Three major US companies are leading the way in developing the technology to extract carbon dioxide from the air: Global Thermostat, Carbon Engineering, and Climeworks. With federal tax credits per ton of carbon dioxide captured and a prosperous system of injecting the CO2 back into the ground to stimulate crop yield, the companies' three different approaches all offer a way to cut into the massive amount of global emissions, an opportunity to make a lot of money with new technology, and a helping hand for states working on achieving new federal guidelines and restrictions for a green future.

Hydrogen fuel has made promising strides from Germany to Japan, thanks to shifting markets for renewables, improved storage technologies, and emissions-reduction goals. Electrolysis that uses renewables to make the fuel could transform transportation and energy infrastructure, but a few concerns about the unintended effects persist.

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.

Two organizations partnered to help eight low-income households convert their homes to become all-electric in Virginia. It entailed replacing fossil-fuel based heating and cooling systems like stoves and water coolers with electric ones. Some of the households saw a reduction in their utility bills. Organizers estimate that over the course of 20 years the changes will result in the households avoiding the emission of over 2 million pounds of carbon dioxide.

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.

As a way to reduce the amount of diesel fuel that powers trains, governments and transit companies around the world are turning to solar panels as a way to utilize renewable energy. In Australia, a solar train launched in 2017 that uses lithium-ion batteries that are charged by solar panels on the roof of the carriages. And a rail line in the United Kingdom uses energy from a solar farm to keep the train running. Scaling solar panels for nation-wide transit systems can be challenging, but many countries are committed to eliminating the use of fossil fuels on their rail networks.

Climeworks is focusing on pulling carbon dioxide directly out of the air to store or reuse in some capacity as a way to lower global greenhouse gas emissions. The Swiss company has 16 plants around Europe, with their biggest one in Switzerland that removes 900 tons of carbon dioxide a year that is then sold to Coca-Cola Co. to put in soft drinks or to local industrial greenhouses for plant growth. Scaling the operations to capture more carbon is costly, but the startup recently raised $76 million from investors.