
This week's pick is from our friends across the pond:
The British Wind Energy Association
Given today's energy situation, utilizing Wind Power seems logical and green!
We all know wind power has been around for a long time.

Offshore wind power is a popular topic of discussion in England.

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The British government has recently announced plans
for a huge increase in offshore wind power.

Up to 7,000 new turbines are hoped to be built by 2020.

The British want to see the delivery of up to 25 gigawatts of electricity by wind power in 12 years.
However, there is some controversy
While offshore wind farms have been welcomed by green groups,
others have been concerned about the consequences of wildlife,
spoiling coastal landscapes
and the interruption of shipping routes.

Below are some photographs from a BBC newsroom
of these "Off Shore" types of wind powered generators:



It should be noted that MINNESOTA has many Wind Farms also!

Above is an aerial view of a Minnesota Wind Farm.
Source: Science Museum of Minnesota

Wind turbines at Buffalo Ridge, near Lake Benton, Minnesota—one of the
our state's highest and windiest locations. The area features 450
wind turbines and produces up to 300 megawatts of energy, making
it one of the nation’s leading producers of wind energy.
Source: Science Museum of Minnesota
What happens when the wind isn't blowing?
Well, you "store"the energy from the Wind
Farms using, yep... batteries!

Japan recently installed this sodium-sulfur
"Wind Storage" 16- foot bank of batteries
built by NGK Insulators Ltd.
Even our Canadian friends have come up with a technology could make wind power a more reliable source of energy. VRB Power Systems Inc. http://www.vrbpower.com of Vancouver has developed a large-scale storage unit which can hold significant amounts of wind power. It is shown below:

The unassuming exterior of the King Island (off the coast of Australia) VRB facility houses a bank of batteries that more than triple the island's wind capacity.
Source: VRB Power Systems, Inc.
Inside the "vanadium redox-flow batteries" (VRB)
Whereas a conventional battery, like the one in your car, stores chemical energy within an electrolyte solution, a VRB contains two different electrolytes solutions, each in a separate tank. In a charged VRB, one electrolyte is positively charged, and one is negatively charged. In order for the battery to provide power, the electrolytes flow through a fuel cell stack on opposite sides of a proton exchange membrane. Their opposite charges create a gradient that powers an external current.
Several characteristics unique to VRBs enable them to sustain utility-scale storage and power at potentially competitive prices. First, unlike conventional batteries, power output is independent from energy storage capacity—power output depends on the size of the fuel cell stack, while the energy storage capacity depends on the size of the electrolyte tanks. Neither constrains the other, although the ratio of storage to power determines how long the batteries can run without recharging. Power can flow undiminished as long as there is fresh electrolyte to circulate through the stack.

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"Have a Great Week!"
>>> bits_blogger <<<




































































