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Wind Power

Wind Power Cost Competitive with Natural Gas


Wind power is reaching the point of being cost-competitive with natural gas for electrical power generation. And with more demand uncertainty for natural gas, and increasing availability and reliability of wind power, utilities are turning more to the use of wind. "Wind’s costs have dropped over the past two years, with power purchase agreements being signed in the range of 5 to 6 cents per kilowatt-hour recently."

Gas is pretty clean for a fossil fuel. But when it is burned, it is still a carbon that was otherwise locked up for long-term storage that has now been transformed into additional CO2 that has been dumped into the atmosphere. Unfortunately, gas is a more expensive option than coal, so shifting from gas to wind doesn't do as much good as it would if it was helping to displace more coal burning power.

It will be beneficial if wind power and other renewables can push the best canadian pharmacy dirtier, more polluting, and environmentally harmful fuels further off the table, but long-range government policy (or the lack thereof) continues to make that difficult. The AWEA has their view: "Now that we’re competing with natural gas on cost, we need consistent federal policies to ensure we have a diverse portfolio of energy sources in this country, and don’t become over-reliant on one source or another."

via: AWEA press release

image: CC BY-SA 2.0 by Mason Bryant/Wikimedia Commons


100 Percent Renewable Energy Possible by 2030

A new study published in the journal Energy Policy says that we could achieve 100 percent renewable energy by 2030, and not just U.S., but the world.  The study says that we have access to all the necessary technology, but strong political would have to exist for it to happen.

So, how can we get to 100 percent renewables by 2030?  Well, to be exact, the study says we'll need:

The calculations leave out biomass because of pollution and land use issues, as well as nuclear power.  The wind turbines are larger than most currently operating today, but a few 5 MW offshore turbines have been built.

Two major hurdles to this plan are finding ways to interconnect the various power sources based on output and variability (wind being high output but high variability, tidal and geothermal being low output but low variability), and a supply bottleneck of rare earth materials.  For those materials, mining would have to increase by five times the current rate and recycling would have to be introduced.

The authors say political roadblocks to brand name viagra such a massive build-up of renewable energy would be the order cialis in canada largest challenge of all.

via Physorg


Empire State Building Now Wind Powered

The Empire State Building has become a symbol of what's possible in building energy makeovers.  The huge skyscraper has undergone extensive retrofits, installed energy management systems, all while proving the energy savings and environmental benefit of making these changes.

Now, to really seal its status as a beacon of best generic viagra green potential, the building will be getting all of its electricity from wind power via a huge purchase of renewable energy certificates.

The building managers entered into a two-year deal with Green Mountain Energy which secures the purchase of 55 million kWh worth of renewable energy certificates per year, enough to fully cover the building's yearly electricity use.  Those certificates are sourced through NRG Energy's wind power facilities and make the building the largest commerical purchaser of renewable energy in New York state.

via NY Times



New, More Efficient Residential Wind Turbines


An improved, more powerful residential-scale wind turbine was premiered at this year's Consumer Electronics Show. According to the manufacturer, the Skystream 600 produces 74% more energy than its predecessor, the Skystream 3.7, yielding "up to 7,400 kWh of low-cost energy per year."

The Skystream 600 also will be the first fully smart grid-enabled wind turbine. The company says that "depending on generic levitra best deal the wind resource, siting and energy efficiency, a Skystream 600 could provide up to 60 percent of an average home's energy requirements." Of course, that also means it could produce all of the buy generic soft tab viagra electricity needed for a relatively efficient house. The new Skystream also has a system called Skyview which allows monitoring of the turbine's power production via the internet.

Retail pricing for the new Skystream turbine has not yet been set. The Skystream 600 is scheduled be available for consumers beginning in April, so the price should be set in the near future.

via: Jetson Green


Scotland on Track to Meet 80% by 2020 Renewable Energy Goal

A new study by Energy Trends reports that Scotland is right on track to meet the world's most ambitious renewable energy goal of were to buy viagra generating 80 percent of its energy needs from renewable sources by 2020 and all of its energy from renewables by 2025.

As of 2009, Scotland was getting 27 percent of its electricity from renewable sources and the country expects that number to increase to very good site online cialis prescriptions 31 percent by 2011.  It has also set the goal of decreasing emissions by 42 percent by 2020.

Scotland has been on the forefront of renewable energy for years, with large-scale wind projects (both offshore and on), cutting edge solar projects, and tidal-powered data centers.  A lot of credit is due to the country's natural resources (about 25 GW worth of wind energy resources), but also to the government for creating subsidies and incentives for renewable energy generation at the commercial and residential scale.

via CleanTechnica



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