Sunlight is a non exhaustible source of energy without contributing greenhouse gases to the atmosphere. Still it is miles away from replacing the fossil fuels. Many reasons can be sited. One of its biggest disadvantages is it is still out of reach for the common man and it has a long break-even period. Unless [...]
Posted in: Inventions, PhotoVoltaics, Solar Power
By Corey Dahl
SOLAR TODAY Associate Editor
National Geographic News posted an interesting article about solar projects in Cairo’s slums today.
The article discusses the work of Solar CITIES (check out their blog here), a nonprofit that has been installing solar hot-water systems and biogas reactors in the city’s neediest neighborhoods since 2003. The solar hot-water systems are somewhat primitive — m [...]
It seems the canvass of clean and green energy is getting bigger with each passing day. More and more products, vehicles, gadgets, homes and cities are being added to this ever expanding canvass. Germany’s Hamburg Harbor has announced the development of a world class Eco City. This eco city will be designed by Tec [...]
Posted in: Environment, Future Energy, Inventions
Off shore wind is steady and blows harder. If a country is densely populated it is hard to find open space to install wind farms. That is why there are more and more offshore wind farms in densely populated Europe where there is limited space on land and relatively large offshore areas with shallow [...]
Posted in: Environment, Wave Power, Wind Farms
A press release from Boeing:
SYLMAR, Calif., Aug. 26, 2009 — Spectrolab Inc., a wholly owned subsidiary of The Boeing Company [NYSE: BA], today announced that a solar cell it manufactured has set a new world record for terrestrial concentrator solar cell efficiency. The cell can convert 41.6 percent of concentrated sunlight into electricity.
The U.S. Department of Energy National Renewable Energy Laboratory in Golden, Colo., independently tested the efficiency of the Spe [...]
