Coffee grounds and poultry litter proving a viable biomass option in the UK

The commercially-based Wind for Prosperity initiative may have devised a solution to meet growing demands for electricity in developing economies, where fossil fuels are expensive, difficult to access, and take a toll on environmental and human health. The venture works to refurbish wind turbines from Europe and re-deploy them in the developing world, providing clean and affordable power where it’s needed most.

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.

Iceland, hit by the oil crises of the 1970s, turned to geothermal energy - and they haven't turned back. The island is now powered by 100% renewable energy, and they are taking it one step more, looking to further cut emissions using a unique carbon capture system called CarbFix. It is being pioneered at the Hellsheidi geothermal power plant in western Iceland.

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.

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 new solar array called North Star in the Twin Cities will soon produce enough energy to power more than 20,000 homes. The project allows landowners to evolve beyond a deteriorating farming industry while maintaining native prairie plants under and around the panels for bees and other pollinators. The project is part of the state's 15-year energy plan to reduce carbon emissions by 60 percent and generate a third of its electricity from renewable sources by 2030.

Micro-hydro projects in the United States have become much more accessible and more financially viable since Congress passed a law in 2013 making it easier for small hydroelectric projects to get federal approval. Specifically, water treatment plants that can retrofit their systems to generate electricity are an excellent energy opportunity. The plant in Grand Lake now produces more electricity than it consumes.

The Hydropower Empowerment Network takes a country-by-country approach to helping establish micro hydro and other technologies in rural places where electricity is difficult to come by. Micro hydro has even proven to be more durable and sustainable than solar, though solar is cheaper and quicker to install - the reason is the depth of community involvement required. When villagers participate on longer-term, complex projects, they develop pride in their work, learn invaluable new skills, and are empowered to engage with the solution.

The government wants more farmers turning waste methane into biogas to help combat the negative effects of global climate change. California is leading the initiative, largely through a cap-and-trade program.

A team of Finnish engineers havevinstalled the first commercial battery made of sand, which can store green energy in it for months. Solar panels or wind turbines generate electricity, which is then stored as heat in the sand battery. When needed, the battery can discharge hot air to heat up water which is then used to heat homes, offices, and a swimming pool. This solution may be difficult to scale, but it’s a low-cost storage idea that could be useful when it’s cold and energy is more expensive.