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Need energy efficiency system for your home, office or warehouse? Contact Nextek Power Systems for the futuristic energy saving using alternative sources.

Wall mount ultrasonic motion sensor light and ceiling mount PIR motion sensor for staircase and stairway

Steinel German quality fine movement PIR occupancy sensor and presence detector for Classroom, Staff room and Study hall

Steinel German quality 230v 50Hz PIR occupancy sensor and presence detector for Laboratory and R&D centre

360 degree 230v Steinel PIR motion sensor & ultrasonic motion detector for Toilet, WC, Bathrooms, Restroom, Cloakroom, Car Parking Areas, Garage

As traditional energy sources become increasingly rare and expensive, many homeowners are turning to the skies and learning how to harness energy from the sun. Solar cell technology has been around since the 1950s, but technology has improved considerably and at current levels of efficiency it is worth taking the time and effort to consider a Solar Power Home Now Solar cells are also called photovoltaics, or PV, by the boffins. In basic terms, they are made of semi conducing materials, which, when exposed to the sun go through a distinct process. The solar energy separates the electrons from the atoms within the material and the movement of the electrons creates power, or electricity. Thus light (photons) is converted into electricity (voltage).

AP reports that Californian voters passed a measure to build a high speed rail network in the state - Calif. voters approve $10B bond for bullet trains. Hopefully they can find the money for it California voters are green-lighting the nation's most ambitious high-speed rail system, approving a nearly $10 billion bond to put speeding bullet trains capable of topping 200 mph between the state's major metropolitan areas. The measure, which passed with 52 percent support Tuesday, will fund the first phase of what is projected to be a $45 billion, 800-mile project built with state, federal, local and private money. Backers sold the proposal as an innovative alternative to soaring airfares and gas prices. In the closing weeks of the campaign, they touted estimates that it would create nearly 160,000 construction-related jobs and 450,000 permanent jobs.

Here's one for the alternative wind power experiments file - a report from BusinessWeek on an interesting design idea, inspired by the Tacoma Narrows Bridge collapse of 1940 - Humdinger's Wind Power Alternative. As an MIT engineering undergraduate visiting the rural fishing village of Petite Anse, Haiti, in 2004, Shawn Frayne hoped to devise a way to convert abundant agricultural waste into cheap fuel. But the budding engineer soon found that the community's mainly poor residents faced an altogether more immediate need. Unconnected to the local power grid, they relied heavily on dirty kerosene lamps, which are not only costly to operate but also unhealthy and dangerous. He decided to devise an alternative-a small, safe, and renewable power generator that could be used to power LED lights and small household electronics, such as radios.

Since 1995, West Palm Beach-based Florida Crystals Corp. has been operating the largest biomass-to-electricity facility in North America, the Okeelanta Co-Generation Plant next to its sugar mill and refinery plant south of South Bay. The plant uses 850,000 tons of sugar cane residue known as bagasse and 900,000 tons of clean wood material from construction and yard wastes to produce 140 net megawatts of electricity each year. The power is sold to Florida Power & Light Co. to provide electricity to 58,000 homes, said Florida Crystals spokesman Gaston Cantens.

State regulators in Colorado have given the green light to plans by Xcel Energy to shut down two coal-powered energy plants in the state, and build one of the world's largest utility-scale solar-power facilities. Following discussions lasting several days, the Colorado Public Utilities Commission (CPUC) backed the power company's voluntary decision to close the two coal-fired plants at Denver and Grand Junction, making Xcel the first utility in the U.S. to make such a move solely in an effort to reduce emissions.

The world is finally doing something about climate change. People are changing their light bulbs and buying hybrid vehicles. Renewable energy is gaining ground. But is this enough? Policy-makers insist that environmental responsibility not come at the expense of economic growth. Massive populations in China and India are playing catch-up with America's consuming and polluting ways. And on a planet biologists believe can only support a few billion humans over the long haul, our population is near seven billion and continuing to rise. Will our efforts to save the planet be nullified by our worship of growth?

The Arctic Hotel in Ilulissat, Greenland, is a charming little place on the West Coast, but no one would ever confuse it for a Four Seasons - maybe a One Seasons. But when my wife and I walked back to our room after dinner the other night and turned down our dim hallway, the hall light went on. It was triggered by an energy-saving motion detector. Our toilet even had two different flushing powers depending on - how do I say this delicately - what exactly you're flushing. A two-gear toilet! I've never found any of this at an American hotel. Oh, if only we could be as energy efficient as Greenland!

CAMBRIDGE, Massachusetts (Reuters) - A U.S. scientist has developed a new way of powering fuel cells that could make it practical for home owners to store solar energy and produce electricity to run lights and appliances at night. A new catalyst produces the oxygen and hydrogen that fuel cells use to generate electricity, while using far less energy than current methods.

- Amid mounting agreement that future clean, "carbon-neutral", energy will rely on efficient conversion of the sun's light energy into fuels and electric power, attention is focusing on one of the most ancient groups of organism, the cyanobacteria.

It's Tuesday morning and the streets of Bangalore are, as always, jammed with traffic and saturated with smog. A young tech worker and his pregnant wife navigate the dusty roads on a tiny scooter, a 125-cc Hero Honda. Srinivasan Chandra's hands sweat onto the handlebars as he waits for the light to turn green. The journey from home to office is only 6 miles, but road conditions and rush hour have turned the four-lane highway into a cross between a parking lot and a demolition derby.

San Jose, California-based SunPower Corp. announced Thursday that it has clinched a deal with Florida Power and Light for the development of a 35 megawatt solar power system in Florida, the largest in the United States, according to reports. The project involves the construction of two solar power generation facilities, a 25 megawatt plant in DeSoto County in 2009, and a 10 megawatt plant at Kennedy Space Center in 2010.

f You are Interested in Learning Exactly How to Generate Power and Reduce your Power Bill then This is the Perfect Resource for You! Earth 4 Energy (from creator and renewable energy enthusiast Michael Harvey) Can Show You How to Cut Your Power Bill by up to 80% using Solar Power and Wind Energy System that You Can Build on Your Own. This complete step-by-step fully illustrated manual will have you generating your own electricity for less then $200! With the ever increasing costs of living there is no better time then right now to start producing our own electricity. Whether you want to simply reduce your power bills or completely eliminate them - Earth 4 Energy will be your light and your all in one energy saving guide to create your own self electricity source. This guide will show you the simplest and easiest way to have power for less. Click Here for More Info on Earth4Energy

Field of mirrors in Spain generates solar-thermal electricity As the sun rises over Seville in southern Spain, its blinding light bounces on a field of 624 mirrors surrounded by sunflowers. Subscribers must LOG-IN to read this full story. Once you are logged in, all stories appear in their entirety.

Solar energy can be utilized in various ways - to provide electricity, mechanical power, heat and lighting. Passive solar heating and cooling can save substantial electricity bills. Design of a building is very important for tapping passive solar energy. The building and windows are designed in such a way that they carefully balance their energy requirements without additional mechanical equipment. Solar benefits are utilized through windows and pumps, and fans are used minimally. Passive solar energy utilizes building constituents such as walls, floors, roofs, windows, exterior building elements and landscaping to control heat generated by sun. Solar heating designs try to trap and store thermal energy from sunlight directly. Passive cooling minimizes the effects of solar radiation through shading or generating air flows with convection ventilation.

The idea of painting our roofs and roads white to offset global warming is not new, but a recent study has calculated just how significantly white surfaces could impact greenhouse gas emissions. Last week, researchers at Lawrence Berkeley National Laboratory and UC Berkeley presented their study at California's annual Climate Change Research Conference in Sacramento. If the 100 largest cities in the world replaced their dark roofs with white shingles and their asphalt-based roads with concrete or other light-colored material, it could offset 44 metric gigatons (billion tons) of greenhouse gases, the study shows. That amounts to more greenhouse gas than the entire human population emits in one year, according to a recent article in the Los Angeles Times. The strategy could also offset the growth in carbon dioxide emissions, which account for about 75% of greenhouse gases, for the next 10 years.