Eco20/20

A trend is spreading through small towns across Germany. Tight budgets have forced hard decisions, including turning the lights out at night. No one is on the streets at night anyway, so why pay for the electricity to run the street lights? But residents have revolted. They fear an uptick in crime, or simply for their safety while stumbling through the dark streets to walk the dog or return from a late night out. Proving necessity is the mother of invention, a handful of clever solutions are being implemented; some with interesting consequences. The solution seems to have started in the small town of Morgenröthe-Rautenkranz in the Erzegebirge. Over one and a half years ago, the 900 citizens of Morgenröthe-Rautenkranz were plunged into darkness each night, but given the option to turn the lights on by mobile telephone. Older citizens were concerned about their ability to master this new technology, but practice makes perfect. The first two weeks of the program, the lights remained on almost all night long as residents remained awake late for an opportunity to test the new system! But now the lights stay off except when needed. The town saves 4000 euros ($5300) per year. According to the Berliner Morgenpost daily newspaper, Morgenröthe-Rautenkranz is the inspiration for 4300 person community of Groß Pankow, the most recent community to consider on-call streetlight.

In a new study, conducted by the Rock Mountain Institute, it has been found that electricity consumption can be reduced by 30 percent through energy efficiency and coal powered power generation can be reduced by 60 percent. vote nowBuzz up! The study, which spanned across 50 states, identified five states with highest electric productivity rates - New York, Alaska, Connecticut, Delaware and California - and stated that if all other states were to adopt similar efficiency parameters are implemented in other states the whole country can save up to 1.2 million gigawatt-hours annually. The study also brought out the long-term benefits of improving the electric productivity

One man in the classroom earned more than $100,000 framing tract homes during the building heyday. Another installed pools and piloted a backhoe. Behind him sat a young father who made a good living swinging a hammer in southern Utah. But that was before construction jobs vanished like a fast-moving dust storm in this blustery high desert. Hard times have brought them to a classroom in Kern County, about 120 miles northeast of Los Angeles, to learn a different trade. Tonight's lesson: how to avoid death and dismemberment. This is Wind Technology Boot Camp at Cerro Coso Community College, where eight weeks of study and $1,000 in tuition might lead to a job repairing mammoth wind turbines sprouting up across the nation.

The American Wind Energy Association (AWEA) and the Solar Energy Industries Association (SEIA) have released a white paper titled "Green Power Superhighways: Building a Path to America's Clean Energy Future," detailing current inadequacies of the U.S. electric transmission infrastructure and offering policy solutions to address them. Inadequate transmission capacity is a significant barrier to renewable energy development in the U.S. The release of the paper comes at a critical time. President Obama and Congress have made strong commitments to renewable energy as a driver for jobs creation and economic growth, but the nation's renewable energy resources can not reach their full potential without renewed investment in the country's transmission infrastructure.

Denmark's DONG Energy and Siemens today announced they've signed off on "the world's largest offshore wind turbine agreement." Under the pact, Siemens will deliver up to 500 wind turbines for DONG's development of offshore wind energy installations in northern Europe. Once deployed, the turbines are expected to have a total power-generating capacity of 1,800 megawatts.

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.

A new technique could pave the way for improving the workhorse lithium ion battery used in automobiles, cell phones and other devices so that it can recharge in seconds RAPID RECHARGE: Scientists tweaked a battery material to permit a super-quick flow of charge-carrying ions in and out. A new twist on the familiar lithium ion battery has yielded a type of power-storing material that charges and discharges at lightning speed. The finding could offer a boost for plug-in hybrid and electric vehicles and possibly allow cell phone batteries to regain a full charge in seconds rather than hours. Scientists at the Massachusetts Institute of Technology (M.I.T.) report in Nature today that they devised a way for lithium ions in a battery to zip in and out about 100 times faster than previously demonstrated. "We took a basically great material called lithium iron phosphate [LiFePO4] and we tried to improve it further," says study author Byoungwoo Kang, a graduate student in M.I.T.'s Department of Materials Science and Engineering.

Formerly a region of high-unemployment, the German port of Bremerhaven has experienced a remarkable economic upturn, transforming into a major offshore wind power know-how centre and more. At least four of Germany's North Sea and Baltic Sea major ports have been transformed into the country's main wind industry logistical centres and/or equipment manufacturing/supply bases during the past few years. 'Of the €500 million invested for offshore wind power development along the German North Sea coastal region during the past years, about half came to Bremerhaven.' -- Jan Rispens, Managing Director, Windenergie Agentur Bremerhaven/Bremen (WAB) Emden serves as a main export harbour for Enercon wind turbines, and the German market leader operates a large concrete tower manufacturing plant within Emden's boundaries. BARD Engineering chose Emden as its offshore wind turbine assembly and rotor blade manufacturing location, while part of BARD's Tripile offshore foundations are being manufactured by a subsidiary company in Cuxhaven. Both BARD and Enercon have, in addition, built a foundry in the region, aimed at providing at least part of their individual demand for heavy-cast components.

Concentrating solar power (CSP) is an emerging technology that offers the potential to supply utility-scale peaking power competitively. In December 2008, a 1.5 MWe solar thermal central receiver system was declared operational by plant construction company Kraftanlagen Munchen. Although solar tower technology had been built as early as the 1970s and a second commercial tower is now close to completion (see REW magazine July/August 2008) the so-called Test and Demonstration Power Plant Julich, in Germany, is the world's first solar thermal power plant erected which uses air as the medium for heat transport. In all previous plants liquid media such as molten salt or oil have been used for the obvious reason of their high specific heat capacity, which in turn results in low volume flow rates and low pumping losses.

Using someone who is a green lighting designer is important, even vital if the completed project has hopes to being certified as a green building.

There are alternatives to the growing energy crisis-alternate energy sources and alternate energy storage methods-but they must be given a chance before they can ever succeed.

We use window treatments to help insulate the room against extreme heat and cold. We may use them to block light or direct light to one part of the room only.

Having landscaping done for your yard is often the finishing touch for that yard. People know that beautiful flowers, trees and shrubs will attract wildlife to their yard.

Owning and running a green mart can be a very rewarding profession, especially if you live in a relatively small area and know the majority of your customers by name and face.

A neighborhood produce co-op is a way to get the community working together. It is also helps some of the less fortunate families in the area to be able to get sufficient food to feed their families.

If solar energy is to be the replacement for other less environmentally friendly energy sources, then there must be a way to store it on a larger scale that is still safe and affordable for everyone.

Keeping the backyard pool fresh and sparkling clean is a lot of hard work, it also needs a lot of chemicals. These chemicals are hard on our hair, our eyes, our skin and our clothing as well. They are also bad for the environment.

Green engineering will become a valuable skill, and jobs are becoming available in energy, renewable energy, the smart grid and more.

Compost is a rich, organic fertilizer that takes away our need to use other types of fertilizers on our gardens or plants to make them grow big and prosperous.

Each country has its own vision of what a real "smart grid" is, and every country has a different time frame in mind for implementing these visions.