A company called Solyndra pioneered the solar tube but this new invention by UK-based Naked Energy may just take cylindrical solar to a whole new level. Called Virtu, the product includes an integrated photovoltaic cell in a vacuum tube to generate both electricity and warm water at the same time. The setup keeps the PV cool to optimize energy production and maximizes space with a combined PVT solution.
California-based SolarCity started out with solar and gradually expanded to energy efficiency services. Now, with more than 5,000 efficiency projects completed or underway, the company wants to help the typical U.S. family save some of about $1,900 that’s spent every year on home utility bills. The company just announced a plan to make energy-efficiency improvements more accessible with a new Home Energy Loan.
Elements by Durcon is officially launching in the DFW market in Texas, where it is also manufactured (about 200 miles from Dallas in Taylor). The eco-friendly surface is made with a proprietary blend of at least 10% post-consumer recycled glass, natural quartz minerals, and resin to create a low-VOC material that’s solid, non-porous, and “never requires sealing,” according to Durcon.
This is a net-zero energy showhouse in the Belgravia neighborhood of Edmonton. The home, built by Effect Home Builders, has been open on Sundays and displays the solar-powered approach to reducing the use of fossil fuels. A massive rooftop solar array feeds energy into the grid and produces as much energy as will be needed on an annual basis. In addition, the home has several other green aspects.
- Solar thermal is dead.
- The most sustainable house in South Korea.
- A new age of sustainable apartment housing.
- The ultimate guide to making a rental energy efficient.
- One of the most energy efficient homes in the U.S.
- Green building goes mainstream.
- Green home built by students.
We’ve mentioned solar-tracking but the systems are usually pictured on a pole in a big grassy yard. This is a Dual-Panel Tracker by Maryland-based Advanced Technology & Research Corp. (ATR) on the roof of a row house in Federal Hill in Baltimore. The install consists of two panels, 235-watts each, on a sun tracking mount with a GPS-controlled drive unit that follows the sun to yield about 30% more than fixed panels.