Wind farms can provide a surplus of reliable clean energy to society, Stanford study finds
A big challenge for utilities is finding new ways to store surplus wind energy and deliver it on demand.
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#1 Mar 21, 2014
Hey, litesong, more good news.. from Stanford..
One advantage of wind over solar power is that it has an enormous energy return on investment, Benson explained. "Within a few months, a wind turbine generates enough electricity to pay back all of the energy it took to build it," she said. "But some photovoltaics have an energy payback time of almost two years. To sustainably support grid-scale storage will require continued reductions in the amount of fossil fuel used to manufacture photovoltaic cells."
Payback time for nuclear? Forever is a long time.
#2 Mar 21, 2014
Yes, the article doesn't mention Prof. Mark Jacobson, but I bet his integrated facilities & faculties are somewhere near the project. At this point, I'm not for battery storage of wind & solar power. Its like throwing away 20% to 30% of the energy. Best if they can establish any water power facilities to integrate with the wind & solar. Ninety percent of all dams in the U.S. have no hydro-electric generating capability. Some feasibility studies will determine what dams may have easiest hydro-electricity possibilities. Those three power sources are the most environmental, easiest & efficient means to produce reliable power.
#3 Mar 22, 2014
RALEIGH, N.C. North Carolina regulators said Friday that they have asked a judge to withdraw a proposed settlement that would have allowed Duke Energy to resolve environmental violations by paying a $99,000 fine with no requirement that the $50 billion company clean up its pollution.
The state Department of Environment and Natural Resources said in a statement that it would scuttle the proposed consent order to settle violations for groundwater contamination leeching from coal ash dumps near Charlotte and Asheville.
The decision comes after a Feb. 2 spill at a Duke coal ash dump in Eden coated 70 miles of the Dan River in toxic sludge.
Frank Holleman, a senior lawyer at the Southern Environmental Law Center, welcomed what he termed "a total reversal" of the state's position.
"We hope that DENR will now work with us to enforce the law and force Duke Energy to clean up its illegal coal ash storage and move the ash to safe, dry storage in lined landfills away from our rivers," Holleman said. "It is a shame that it took the Dan River spill and a federal criminal grand jury to get DENR to change course, and that a year was lost while DENR tried to defend this now-defunct settlement."
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