World's first city to power its water needs with sewage 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.

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.

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.

In a collaborative effort between developers, power companies, and the government, a new apartment complex in Utah will be almost entirely powered by solar energy. The complex, developed by Wasatch Premier Communities, will work with Rocky Mountain Power to determine how to integrate such technology into the region’s electricity grid. This kind of development is gaining ground in Utah, and those in the industry hope to educate others of the benefits of going electric.

Across Salt Lake City, Utah, housing developers are building more net zero energy homes. Facing air quality issues, the state has yet to set more energy efficient codes for new homes, which means the kind of homes being built by developers like Redfish, Garbett Homes, and Ivory Homes, are being constructed on a much smaller scale. Such homes, while costing 2-5% more to build, have shown to decrease energy costs by 50-60%.

Dozens of states across the US are adopting programs that offer solar power for low-income communities in order to cut down on their utility costs and provide renewable energy that they previously would not have had access to. Some of these programs also incorporate other social goals into their programs, such as offering job training or developing sites of backup energy should there an outage. Solar development is currently one of the fastest growing industries in the US, and analysts predict that the nation will be able to hold over 2,000 megawatts of solar capacity this year alone.

As electric utilities expand to include evolving forms of energy such as varied renewables, the already complex puzzle of storage and distribution (effectively addressing surges and lulls in demand) has grown more difficult. Artificial intelligence in the form of super speed algorithms that can detect usage patterns and allocate the right types of energy at the right times is a straightforward solution that can reduce costs and emissions simultaneously, while encouraging consumer behavior change to maximize efficiency.

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.

Ashton Hayes- a small town in England- adopted a Carbon Neutrality mission, meaning they hoped to produce as much energy as they consumed. Over the past 10 years they have reduced their emissions by 40%, attributing their success to the resulting neighbourhood cohesion, dedication, and it being a public decision as opposed to one made or implemented by politicians.

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.