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Hydrogen Stocks More than Double In 2013: Why the Pros Missed the Ride

Thursday 19 12 13

If you hadn’t noticed that hydrogen stocks are up an average of 131 percent so far this year, you’re not alone. Both hydrogen fuel cell stocks and hydrogen fuel systems stocks are up strongly.

Subsea Cables Bring Offshore Wind Power to the People

Thursday 19 12 13

It might be surprising to learn that Norway’s tallest building is Nexans’ 120-metre extrusion tower at the company’s submarine high-voltage direct current (HVDC) cable factory in Halden. Nexans makes subsea cables that connect offshore wind farms to the grid, transports them around the world and installs them underwater so that the cables can bring clean power from offshore wind farms to onshore substations and from there to our homes.

Soft Costs Reductions are Essential for Solar Industry

Thursday 19 12 13

What needs to be done to accelerate adoption of solar in the U.S.? The price of solar cells is continuously dropping and financing mechanisms are put in place to create affordable solar. Yet despite the seemingly obvious fiscal choice to switch to solar, it still remains an exceedingly hard sell. Part of that is due to the soft costs, which inflate

Renewable energy system owners enjoy high satisfaction, finds report

Wednesday 18 12 13
A report published by the NC Sustainable Energy Association (NCSEA)and the University of North Carolina Kenan-Flagler Business School's Center for Sustainable Enterprise has revealed a high level of satisfaction among renewable energy system owners in the ...

New geothermal technology could produce 10 times the electricity using CO2 from fossil fuel plants

Tuesday 17 12 13

The idea starts with the liquid carbon dioxide which is increasingly envisioned as a solution to global climate change. The CO2 is captured at the source from fossil fuel burning electrical generation facilities. For efficient storage, the CO2 is compressed into a liquid, which can be pumped deep into the earth, to be trapped in the same porous rock beds which once provided oily reservoirs.

But instead of just storing the CO2 underground, the COS would feed what is described as a "cross between a typical geothermal power plant and the Large Hadron Collider." Liquid CO2 would be pumped into horizontal wells set up in concentric rings deep in the earth.

Carbon dioxide flows through the porous rock bed deep in the earth more quickly than water, collecting as much heat more easily. More importantly, the CO2 expands more than water when heated, so the pressure differential between the CO2 pumped into the ground and the heated CO2 is much greater than the pressure differential of the water making the same loop.

The amount of energy that can be generated depends on this pressure differential -- and is therefore substantially greater in CPG than in traditional geothermal plants. The CO2 expands so much that the pressure alone can carry the heated CO2 back to the surface, an effect referred to as a "thermo-siphon". The thermo-siphon makes the use of pumps for recovering the hot CO2 unnecessary, reducing the energy costs required to generate the geothermal electricity for a higher overall efficiency.

Small size enhances charge transfer in quantum dots

Monday 16 12 13
Scientists show that shrinking the core of a quantum dot can enhance the ability of a surrounding polymer to extract electric charges generated in the dot by the absorption of light.

The Solar Opportunity

Monday 16 12 13

The coming of solar grid parity offers an opportunity for millions of Americans to go solar affordably. But it also means a potential transformation, a democratization of an electricity system long dominated by centrally-controlled utilities and centralized ownership and production of electricity. When solar can undercut grid electricity prices, it

Siemens wins world's biggest onshore wind power order

Monday 16 12 13

Siemens won an order to supply 448 wind turbines with a total capacity of 1,050 megawatts (MW) to U.S.-based MidAmerican Energy, which the German engineering group said was the largest single order for onshore wind power ever awarded.

The wind turbines, with a nominal rating of 2.3 MW each and a rotor diameter of 108 metres, are to be installed in five different projects in Iowa, Siemens said in a statement on Monday.

Siemens said it would also be responsible for service and maintenance of the wind turbines.

Siemens did not provide any financial details of the transaction.

By a rule of thumb, one megawatt of onshore wind capacity sells for 1 million euros ($1.37 million).

Researchers split water into hydrogen, oxygen using light, nanoparticles

Sunday 15 12 13
Researchers have found a catalyst that can quickly generate hydrogen from water using sunlight, potentially creating a clean and renewable source of energy. Their research involved the use of cobalt oxide nanoparticles to split water into hydrogen and oxygen.

Cost of oil rises, but gas prices stay in check -

Sunday 15 12 13

Cost of oil rises, but gas prices stay in check
Put together, it's good news for motorists who have generally been seeing declining gas prices since the end of the busy summer driving season – interrupted by the seasonal increase in prices for Thanksgiving, the busiest travel time of the year.

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