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Wind Power

Need to Measure Wind Speed? There's an App for That

The potential of small-scale wind power is starting to be discussed more.  Soon, like small-scale solar installations, wind turbines will be springing up in backyards and buy viagra online canadian phamacy on rooftops.  If you're thinking that you'd like to be one of the people with a turbine out back, you'll need to assess the wind speeds around your house.  Luckily, as the commercials say, there's an app for that.

A new iPhone app by Mariah Power lets you measure wind speeds around you by simply holding your phone in the air.  The program uses the microphone to buy levitra low price pick up the noise of the wind and then calculates the speed based on decibel level.  The program filters out ambient sound, but you need to avoid louder noises like lawn mowers for the app to read the breeze - or the gust if you're wanting to crank out some watts.

The company claims the measurements are accurate within 1.5 mph.  Once you take your measurements, you can share them on a map to help them build a database of wind maps.

While this app is cool, it is also a blatant marketing tool for Mariah's Windspire residential wind turbine.  The 1.2-kW turbine is 30 feet tall and works in areas with average wind speeds of online pharmacy viagra uk 10 mph or greater.  The company recommends calculating wind speeds over the course of a year before deeming your home turbine-suitable.

via Green Inc.


Northeastern States Joining Forces for Offshore Wind

So far there's been quite a bit of competition between countries and states, all trying to plan and build the latest and greatest renewable energy projects, but a group of East Coast states has decided the key to getting offshore wind and wave projects off the ground is the best choice viagra for sale online to stop trying to beat one another and work together.

Representatives from Maryland to Maine met in New Jersey this week for a clean energy summit and low cost propecia concluded that collaborating on their various individual projects would mean quicker, easier and cheaper results. The states are planning to share things like transmisson lines and advise each other on permitting, site selection and how to construct ocean-based wind farms.

The collective also discussed how they could band together to require utilities to buy offshore wind electricity, raising demand for the renewable energy.  By acting as a team, they could put more pressure on the federal government to issue permits for their projects.

The states could see some long-term benefits to speeding up the process:  more easily meeting renewable energy standards, creating jobs and developing local power for the East Coast, which mainly imports its electricity.

via ClimateWire



World's Largest Wind Farm Completed in Texas

It's official.  Texas is now home to the world's largest wind farm.  The 781.5 MW Roscoe wind complex has been completed and went live last night at 9:00 p.m.

Built by E.ON Climate & Renewables, the $1 billion farm covers 100,000 acres of land across four counties in West Texas and will be able to power more than 230,000 homes.  The company erected the 627 turbines and canadian rx cialis made deals with 300 different land owners in just two years time.

E.ON is now moving on to even bigger things -- the London Array, which is set to be the largest offshore wind farm in the world with 630 MW being installed in just its first phase.

Roscoe will probably only hold the title as the world's largest for a short amount of time as ever larger wind farm plans pop up around the world, especially in China.

via AP


World's First Floating Wind Turbine Switches On

hywindfloatingturbineThe energy company Statoil has begun operation of the first full-size Hywind floating wind turbine at a location 10 kilometers off the Norwegian coast. What is remarkable about this turbine is that is is floating in the water, rather than being rigidly attached to the ocean floor.

Everyone who has paid attention to the issues of best prices on brand viagra off-shore wind turbines knows that there are advantages to having constant, unobstructed winds to drive the turbines. But shorelines are prized for more than their energy potential. The numerous delays and lawsuits that sought to cialis buy uk stop the Cape Wind project in the US show just how contentious the issue can be. But the brand name viagra Hywind turbine offers a new potential for offshore wind.

For a couple of years, EcoGeek been following the development of deep-water off-shore wind turbines which can avoid the largest problems typically associated with off-shore turbines. The Norwegian utility company StatoilHydro has been at the forefront of developing this with their Hywind project.

Statoil has decades of experience with operating deep sea drilling platforms for North Sea oil production, and is using that technology to support a wind turbine in deep water.

The test Hywind turbine's location is comparable to the location of the Cape Wind offshore wind farm project on only for you usa generic levitra Nantucket Sound. Simulated images prepared for Cape Wind show the visual impact of 258 foot (78.6 meter) high turbines with 365 foot (111.3 meter) diameter rotors located roughly 6 miles (10 kilometers) off shore.

The difference between the two is that Cape Wind is situated in Nantucket Sound because the waters are so shallow that the cheap levitra soft turbines can be mounted to the seafloor there. The Hywind turbine, however, lies in much deeper water - able to be located in waters with a depth of cialis generic canada 120 to 700 meters (394 to 2297 feet). The Hywind test location was kept close to shore to make the testing easier and to minimize the need for very long power cables returning to shore.

In an actual installation, Hywind turbines could be located in a large field (making up for the greater cable length with efficiencies of larger numbers of turbines) well off shore and away from scenic views as well as shipping lanes. Deepwater installations become feasible when the turbines do not need to extend all the way down to the sea floor.

Thanks, John B!

Link: Statoil Hydro


China Could Replace Coal with Wind

It's clear that China is taking on renewable energy projects at a fast pace.  The country has doubled its installed wind power every year for the past five years and a new study shows the country should keep it up.  Researchers from Harvard and Beijing Tsinghua University have found that China could meet all of their electricity demands from wind power through 2030.

The scientists came up with meteorological and financial forecasts that show that China can run on wind alone.  They mapped the wind potential for different regions and then assumed that each had a smattering of 1.5 MW turbines.  They excluded metro areas or unusable terrain.  Once they calculated how much energy each area could generate, they then came up with the cost of the energy.

They discovered that many areas, especially northern and visit web site viagra soft tabs 100 mg western parts of the country, could generate energy at about 6 - 8 cents/kWh.  This meant 6.96 trillion kWh could be generated annually at a profit, which is twice the current energy demand and close to what the demand is expected to be in 2030.

If China chose this route instead of female viagra pill adding more coal, it could prevent 3.5 billion tons of CO2 from being emitted.

Since China is already installing wind at a rapid pace, the researchers think it's entirely possible that they could make these projections a reality.  The major hurdle for the country would be upgrading and expanding their transmission system to handle new wind farms.

While a world powered by renewable energy is still a long ways off, it's really promising to hear of studies like these that show that it's definitely accomplishable.

via MIT Technology Review

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