Solar-Thermal Energy Could Reduce Coal Plant’s Carbon Footprint

February 12, 2009

Email this story Print this post Add your comments

Using solar-thermal technology at coal-fired power stations could turn out to be the cheapest way to simultaneously expand solar energy use and reduce coal plants’ carbon footprint. Or at least that’s what the Electric Power Research Institute (EPRI) is hoping to find out with a nine-month study, Technologyreview.com reports.

The nonprofit organization recently launched a $640,000 study to understand the scale of the opportunity and the engineering challenges involved with making the two technologies work together. The study will examine the potential use of solar-thermal technology at two coal-fired power stations in New Mexico and North Carolina.

Last month, five electric utilities in the U.S. and Canada joined EPRI to host studies of the impacts of retrofitting carbon capture technology to existing coal-fired power plants.

The idea is not entirely new: about six new and existing natural-gas power stations are being designed or adapted to incorporate solar-thermal technology. However, the overall efficiency of retrofitted hybrid solar-gas plants is still limited – when the sun goes down, a gas steam turbine that has been modified to accommodate waste heat plus solar heat will suffer an efficiency penalty from running at partial load.

However, for the hybrid technology to work, power plants will need a combination of strong sun and flat, open ground to host a solar thermal collector field. Moreover, governments need to put a firm price on carbon emissions from coal to justify trading cheap coal for more costly solar-thermal energy.

In January, EPRI noted that energy efficiency programs in the U.S. could realistically reduce the rate of growth for electricity consumption by 22 percent over the next two decades – if key barriers can be addressed.

Email this story Print this post Add your comments

Advertisers

Make sustainability part of your strategy.

Get equipped at the SAP Sustainability Resource Center. >>

Unclear about the EPA's new GHG Rule?

Learn how it could affect your business. >>

EPA mandatory emissions reporting starts Jan 1st

CSA Standards can help your organization get ready for compliance. Find out how. >>

Product Environmental Compliance Best Practices

How to achieve compliance at a significantly lower cost. Download the full report. >>

Join the Discussion

Reader Comments

There could be no better investment in America than to invest in America becoming energy independent! We need to utilize everything in out power to reduce our dependence on foreign oil including using our own natural resources. Create cheap clean energy, new badly needed green jobs, and reduce our dependence on foreign oil. The high cost of fuel this past year seriously damaged our economy and society. The cost of fuel effects every facet of consumer goods from production to shipping costs. After a brief reprieve gas is inching back up. OPEC will continue to cut production until they achieve their desired 80-100. per barrel. If all gasoline cars, trucks, and SUV’s instead had plug-in electric drive trains, the amount of electricity needed to replace gasoline is about equal to the estimated wind energy potential of the state of North Dakota. There is a really good new book out by Jeff Wilson called The Manhattan Project of 2009 Energy Independence Now.

Jen | February 13th, 2009

Recent Daily News [ see all ]

11/20/2009
11/19/2009
11/18/2009

Charts [ see all ]

European Paper Industry Cuts CO2 Emissions by 42% since 1990

S. America Takes Most Urgent View of Copenhagen Talks

Nike Tops Annual Climate Action Scores

Oceans May Trap more Carbon than Forests

Jobs

View All Jobs >> Post a Job >>

Comments and Discussions

Stevenson on News Corp. Taps Hara for Energy Efficiency, Environmental Management
"All of us should think of ways to save energy now. It is not a myth,..."

Trade Association on Trade Group on EPA Chemical Regs: ‘If Everything is a Priority, Then Nothing is a Priority’
"Seriously… that..."

Gary Markowitz on Supermarkets Tackle Emissions Reductions, Fuel Efficiency
"Supermarkets waste over 10 percent of their energy through improper..."

peter in ireland on Ontario May Follow California’s Lead on TV Energy Efficiency
"Governor Schwarzenegger is shooting himself in the foot! 1...."

Environmental Leader on S. America Takes Most Urgent View of Copenhagen Talks
"The survey respondents (the PDF report mentions 4,000 respondents in 38..."

Jake on UPS Trying New Hydraulic Hybrid Trucks
"A point of clarification: the Reuters press release referenced herein reports that 20 UPS will purchase..."

Custom Organic Shirts on S. America Takes Most Urgent View of Copenhagen Talks
"90% of North Americans believe it is urgent to get a global climate..."

Environmental Leader