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The QTXE series of ceiling fans by Broan-Nautilus are Energy Star compliant and come with an energy-efficient 42W fluorescent light bulb, and a 4W night light bulb can be installed.

Inhabitat is doing a "Energy 101" series to explain why smart grids are necessary - Energy 101: Where Does Our Power Come From ?. Today we're excited to announce the launch of our new Energy 101 series,. in which we'll be exploring the future-forward technologies that stand to upgrade our grids, reduce our energy footprint, and slow the speed of global warming. Unless you have been living in a cave for the past few years, you've probably heard terms like "energy conservation", "off-grid energy", and "smart grid" tossed around. But before getting into the nitty-gritty of transitioning to renewable energy, we should stop and examine where exactly our power comes from now. Unless you derive all your power from on-site renewable energy sources like solar panels or wind turbines, chances are that you're connected to the power grid, a vast network that delivers electricity from suppliers to consumers. Right now, most energy on the grid comes from generating plants. These plants still usually get power from traditional sources like coal, nuclear, and hydroelectric dams. But as concerns over carbon emissions, safety, and long term sustainability of these sources grow, electrical utilities have begun to switch over to renewable energy sources.

In addition to the its 5M wind turbine series that is currently in production, REpower now has the most powerful wind turbine in the world in its portfolio. Development of the REpower 6M turbine series will be unveiled at the Hanover Trade Fair this week. REpower said that the rated electrical power of the units is 6.15 megawatts (MW).

Product review on the Acer Laptop - Aspire 5920 Series

Following last summer's record minimum ice cover in the Arctic, current observations from ESA's Envisat satellite suggest that the extent of polar sea-ice may again shrink to a level very close to that of last year. Envisat observations from mid-August depict that a new record of low sea-ice coverage could be reached in a matter of weeks. The animation above is a series of mosaics of the Arctic Ocean created from images acquired between early June and mid-August 2008 from the Advanced Synthetic Aperture Radar (ASAR) instrument aboard Envisat. The dark grey colour represents ice-free areas while blue represents areas covered with sea ice.

Mike Gering, CEO of the start-up Global Solar, picks his way along his factory floor, tracing the convoluted path that his thin-film solar panels follow from birth to shipping truck. The raw materials the workers carry are ultra-thin sheets of flexible plastic, which are then coated with a series of chemicals--indium, gallium, diselenide--that allows the module to turn sunlight into electricity.

Climate change will carry a price tag of billions of dollars for a number of U.S. states, says a new series of reports from the University of Maryland's Center for Integrative Environmental Research (CIER). The researchers conclude that the costs have already begun to accrue and are likely to endure. Combining existing data with new analysis, the eight studies project the long term economic impact of climate change on Colorado, Georgia, Kansas, Illinois, Michigan, Nevada, New Jersey and Ohio. Studies on additional states are in the works.

While the arguments rage on both sides, the experts say that time is running out For the workers at Oldbury-on-Severn nuclear power plant, the next new year celebrations could be rather poignant. Just as Britain is planning the rebirth of nuclear power generation, their ageing plant will be closing down, probably on December 31. Oldbury, in Gloucestershire, has been pouring power into the national grid since 1967 and is the latest in a series of closures that has seen Britain's nuclear generating capacity fall from nearly 40% of the nation's needs in the 1980s to just 15% now. Most of the slack has been taken up by new gas-fired stations.

Will Stewart has a guest post up at The Oil Drum on passive solar design techniques - Passive Solar Design Overview - Part 1. Also, at TOD, a post on the Passivhaus standard from another long-time commenter, marjorian - US Housing and the Passive Home Standard. Passive solar refers to the design and placement of a building to enable solar heating without the need for sensors, actuators, and pumps, in contrast to active solar, which utilizes pumps/blowers, sensors, and logic control units to manage collection, storage, and distribution of heat. The two techniques are not exclusive, however, and can work together effectively. As solar radiation (insolation) is a diffuse energy source, and not at the beck and call of a thermostat, passive solar design techniques are at their best when combined with other related methods, such as energy efficiency (insulation, weatherization, building envelope minimization), daylighting, passive cooling, microclimate landscaping, and a conservation lifestyle (i.e., temperature settings, raising and lowering of insulated shades, etc). Most of these topics will be covered in other articles, though passive cooling will be addressed in this series, which is intended as an overview, as a complete engineering treatment on passive solar design would require several dozens of articles.

The Age recently had an article on the emerging practice of "guerilla gardening", taking a look at the "Gardening guerillas in our midst". This concept seems to have steadily increased in popularity in recent years (admittedly from a very low base) as the permaculture movement's ideas have been propagated through the community. Unlike the usual approach taken when trying to grow food in the suburbs - converting spare land on your own property (as discussed by aeldric previously and, more recently, in Jeff Vail's series on A Resilient Suburbia) - guerilla gardening involves cultivating any spare patch of urban land that isn't being used for another purpose, which could provide a substantial addition to the food growing potential of suburbia.

Imagine cars with no tailpipes and no direct carbon emissions into our atmosphere - powered by an electrical energy system getting cleaner by the year through Renewable Portfolio Standards in effect in California and across the nation. More than a decade ago, I was one of the original owners of the EV1, an electric vehicle produced by General Motors (GM). When GM discontinued the series and reclaimed all of the EV1s, it was a major setback for the American car industry. Instead of leading the charge to create a new generation of vehicles - America fell behind.

Spiegel Online published a series of pictures titled "Desertec: Strom aus der Wüste" (translation: Desertech: Electricity from the desert). It includes this image of how much land would be needed to power the world, Europe or Germany with solar-thermal power. The idea is similar to a post we did a year ago: How Much Land to Power The Whole World with Solar?

Large-scale solar power is beginning to take on the job of meeting the demands made by California's air conditioners for electricity. Pacific Gas & Electric and Brightsource Energy today announced they have expanded a series of solar power contracts for a total of 1,310 megawatts of electricity - enough to power 530,000 California homes during peak hours with energy from the Sun. Completion of the first project will nearly double the amount of solar thermal electricity produced in the United States.

The Kaco Solar blue planet xi series of grid-tied inverters has introduced a new energy output level for inverters as a whole.

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The system has been designed in such a way that it can support up to two OutBack FX series inverter or chargers or up to two MX60 charge controllers and all necessary AC and DC components.

The Friedrich CP06E10 is a compact air conditioner from Friedrich and it is one of their best products in the air conditioner series. It has a cooling capacity of 6000 BTUs and the unit is really a very powerful one and is quite advanced.