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Cogeneration of electricity and heat is one of the most promising means of using existing technologies for sustainable ends, but it is also one of the most neglected and least understood. Cogeneration can dramatically increase energy efficiency, slash carbon emissions, and save money.

You can't always get what you want, the Rolling Stones counseled. But if you try sometimes, you get what you need. Factor billions of dollars, questionable loyalties and a privatization rap sheet invested more in profit than people into the equation, and you usually can get both what you want and what you need. In the case of hyper-loaded oil tycoon T. Boone Pickens, that means having your cake on climate crisis, fossil fuel addiction, eminent domain, water privatization and corporate earnings -- and eating it too.

The solar industry is booming. With waves of investment and grants, the solar power industry is for the first time becoming a serious business. New power plants will soon be pumping power out to consumers, while other firms market to sell panels directly to the consumer, providing them with a more direct means of experiencing solar energy.

The incandescent lightbulb that wastes 90% of the electricity as heat is dying, we all know that. But a new breakthrough in solid state lighting might also kill compact fluorescent lightbulbs (CFLs) faster than some expected. Scientists at Purdue University have figured out how to manufacture LED solid-state lights on regular metal-coated silicon wafers (more details below). What this means is: much lower costs.

Innovative concept could make wave energy more affordable A device consisting of a giant rubber tube may hold the key to producing affordable electricity from the energy in sea waves. Invented in the UK, the 'Anaconda' is a totally innovative wave energy concept. Its ultra-simple design means it would be cheap to manufacture and maintain, enabling it to produce clean electricity at lower cost than other types of wave energy converter. Cost has been a key barrier to deployment of such converters to date.

With gas prices going through the roof and regulators requiring cars to be ever more miserly, Volkswagen is bringing new meaning to the term "fuel efficiency" with a bullet-shaped microcar that gets a stunning 282 235 mpg. Volkswagen's had its super-thrifty One-Liter Car concept vehicle -- so named because that's how much fuel it needs to go 100 kilometers -- stashed away for six years. The body's made of carbon fiber to minimize weight (the entire car weighs just 660 pounds) and company execs didn't expect the material to become cheap enough to produce the car until 2012.

Solar Umbrella House is quite simple the most tranquil green house that one would ever come across and it is a refreshingly new sustainable house design that does not look outrageously lavish, but is simple, serene and filled with captivating magic of solar power. I have always believed that simple stuff with sheer elegance are bigger winners compared to designs filled with pompous glitz that shout out loud. The Solar Umbrella Home is a house that is completely powered and lit by the energy of the sun. In this case when I say completely, I mean the whole 100% and nothing less at all!

Kramer Junction. Nevada Solar One. Andasol 1. Kimberlina. They're obscure names today. But they'll be household names tomorrow. The reason? Each is now providing 'here and now' proof concentrating solar power (CSP) works. That can't be said for cabon capture and storage. Nor can it be said for 'next generation' nuclear. Each faces years of additional research and development before some 'first mover' will be game enough to build one. That just isn't the case with concentrating solar power. It's got 20 years of proven commercial operation (Kramer Junction) behind it. It also has new innovations coming on line (Nevada Solar One), with solar thermal storage (Andasol 1), and the promise of super-low costs in coming years (Ausra's Kimberlina). What it adds up to is a price-declining research and development juggernaut in concentrating solar power. This is rapidly bringing concentrating solar power closer to competitiveness with dirty fossil fuels. The California Energy Commission estimates this price 'cross over' could happen by 2015. Bulls predict sooner. And in an industry where new plants and equipment can last 40 years, 5-7 years from now is like tomorrow. What this means is that for forward planning of new infrastructure, concentrating solar power is already nipping at the heels of coal. Toss in carbon prices and the reduced likelihood of protesters chaining themselves to bulldozers as they are likely to at any new coal plants, CSP starts looking like a VERY good deal indeed.

Part of creating the ultimate sustainable planet will be our ability to find sustainable energy sources in a variety of means, such as sunlight, water flow, wind, and yes, even rain. We are of course speaking of the kinetic energy which can be harnessed from rain, which up until a few months ago, was not being considered for use in a consumer product... Lightdrops Umbrella This kinetic energy is created from piezoelectric material, which is able to convert mechanical energy into electrical energy. Now, we aren't talking about a whole lot of energy being created here, approximately 1 microwatt to 12 milliwatts per rain droplet. While not much in the large scheme of things, this technology has been put to use in a new LED umbrella called Lightdrops, which is able to self power an internal LED light using the rain from which it is protecting its user from.

The most-emailed NYT article for two days running has not been another explanation of the shaky housing market (that's #2), but rather a front-page story on solidly built "passive houses": Using ultrathick insulation and complex doors and windows, the architect engineers a home encased in an airtight shell, so that barely any heat escapes and barely any cold seeps in. That means a passive house can be warmed not only by the sun, but also by the heat from appliances and even from occupants' bodies. [emphasis added] It's staggering how much energy can be saved this way:

Siemens Building Technologies is sponsoring a Virtual Trade Show on December 10th and 11th from 8:00am - 6:00pm CST. This Virtual Energy Forum is a two day online-only event focused on how leading companies can adopt better energy management practices to cut costs, while at the same time adopting clean energy alternatives -- presenting alternative energy technologies, policies, and best practices in a live, interactive environment. The event is designed to meet the needs of corporate energy executives in a way that is not possible with physical events, webinars or other means.

Sustained growth of biomass is contingent upon consistent weather patterns which by no means are guaranteed in an age of global climate change.

Not sure whether a wind turbine on your property would generate enough energy to be worth the effort? Stew no more: the Carbon Trust has launched a new "Wind Yield Estimation Tool" on its Website. The tool lets users calculate their annual mean wind speed, potential energy generation and carbon savings based on postcode, landscape and type of wind turbine. According to the Carbon Trust, the tool is the "most rigorous of its kind" and is based on 30 years of data from the Met Office's 220 weather stations.

REW has an article on making the switch to a clean energy world - Will the Children of Today Be Living in a World Powered by Renewable Energy by 2050?. The world needs a one-off switch-over to renewable energy -- and this could be largely accomplished in just forty years time, slashing energy costs and greenhouse gases while allowing healthy economic growth, experts say. By 2050, 80 percent of the world's electricity could be coming from renewable energy sources provided efforts are made, in parallel, to improve energy efficiency, according to a study by the German Aerospace Center (DLR). That means, the children of today might well grow up to experience a world where the energy they use comes almost entirely from the sun, wind, sea and biomass. By 2090, the shift to renewable energy around the world could be almost 99 percent completed reducing pressure on the environment and laying the foundations for a new era of prosperity based on green energy.

What began as a project to make the company's new headquarters as energy-efficient as possible blossomed into an endeavor that created the first net-zero electric commercial building in the country. Net zero means that the building produces all the elec

The boy who refused to grow up, he probably did not realize that nature had beaten him to it. There are several creatures in the animal world that refuse to grow up. The most outstanding is the axolotl…In the wild, the axolotl is found only in Lake Xochimilco near Mexico City. It takes its name from the Aztec word meaning "water monster."

Animal researches have long been puzzled by certain aspects of elephant behavior. In particular they have wondered how apparently random group of elephants, sometimes separated by miles, can manage to move in a cohesive, coordinated manner toward the same destination. Equally mysterious is how, without any discernible means of communication, male elephants are able to track down a female in heat even if she is many miles away.

The main ingredient in securing an electric-centric transportation future is the means and methods required to increase the capacity of sustainable ["green"] "base-load" power.

SOLAR cells are expensive, so it makes sense to use them efficiently. One way to do so is to concentrate sunlight onto them. That means a smaller area of cell can be used to convert a given amount of light into electricity. This, though, imposes another cost-that of the mirrors needed to do the concentrating. Traditionally these are large pieces of polished metal, steered by electric motors to keep the sun's rays focused on the cell. But now Cool Earth Solar of Livermore, California, has come up with what it hopes will be a better, cheaper alternative: balloons. Anyone who has children will be familiar with aluminised party balloons. Such balloons are made from metal-coated plastic. Cool Earth's insight was that if you coat only one half of a balloon, leaving the other transparent, the inner surface of the coated half will act as a concave mirror. Put a solar cell at the focus of that mirror and you have an inexpensive solar-energy collector.