According to New Zealand Energy Quarterly, geothermal currently accounts for 10% of all electricity generated in the country, and is expected to increase.
The U.S. Department of Energy hands out $20 million to companies experimenting with geothermal energy programs to see what is most viable technology wise.
Author Lester Brown of the Earth Policy Institute sees a world with thousands of geothermal power plants generating 200,000 megawatts of electricity by 2020.
The Truro home is near net-zero, despite its large footprint, thanks to a high performance building envelope, geothermal heating and cooling, and solar.
Swedish retailer IKEA and the National Renewable Energy Laboratory have teamed on a geothermal project at an upcoming store in suburban Denver, Colorado.
The EDGE house is a modular home that contains two loft bedrooms, a host of green and renewable energy features, and custom-built, transformable furniture.
A housing redevelopment in the Netherlands is using geothermal heating and cooling, coupled with radiant heating, mechanical ventilation and heat exchangers.