China Close to Firing Up a Fast Reactor

Russian nuclear energy holding company Rosatom reported yesterday that a subsidiary had completed construction of an experimental nuclear reactor in Beijing. At 25 megawatts the reactor’s power output is small, but it sends a big message about where nuclear technology may be heading — especially after the Obama Administration’s effective cancellation last month of plans to store U.S. spent nuclear fuel at an underground repository below Nevada’s Yucca Mountain.

The Chinese Experimental Fast Reactor is so-named because the neutrons produced in its core are not ‘moderated’ with water like those that generate heat in nearly all commercial nuclear reactors. The faster neutrons can burn down nuclear waste and even generate new fuel, promising a solution to the thorny problem of waste storage as well as energy independence.

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Stealth Coal: Like it or lump it

Oil and gas major ConocoPhilips and coal giant Peabody Energy applied for a permit yesterday to build a plant in Muhlenberg County, Kentucky to turn coal into synthetic natural gas. What interests me are not so much the details of their project but the fact that it’s just one more example of what a longtime source of mine, Gasification Technologies Council CEO Jim Childress, calls stealth coal.

Childress uttered this colorful term while I was interviewing him on Chinese versus U.S. developments in coal gasification for power generation using integrated gasification combined cycle or IGCC technology. (‘Combined cycle’ because it uses a gas turbine to generate power from expanding combustion gases plus a steam turbine that generates power from the heat released.) My conclusion, reported today for MIT TechReview in China Closes the Clean-Coal Gap, is that climate concerns have paralyzed IGCC projects in the U.S. whereas air quality concerns are helping push Chinese projects forward.

Stealth coal figures in Childress’ argument that neglect of IGCC technology in the U.S. does not mean we’re through with generating electricity from coal. To the contrary. As utilities turn to natural gas for more and more of their baseload power generation, they will drive demand for gas beyond what drilling can deliver. Childress predicts that coal-to-gas plants such as the ConocoPhillips-Peabody Energy project will keep the gas-fired plants running:

Right now coal plants in the planning stages are stopped dead in their tracks and the default fuel is natural gas. So we’re looking at a tightening of the natural gas market and that’s good news for coal gasification. It may not go [directly] to power but it will substitute for natural gas.

To my ear the word stealth makes coal-derived synthetic gas sound kind of sinister but its climate impact could be negligible according to a University of Kentucky study cited yesterday by Green Car Congress. Visual thinkers may prefer this report by Fox News on Dakota Gasification, the synthetic gas operation that pioneered carbon capture and storage in the U.S. (I’d send you to CNN, but they just axed their entire science, environment and technology team.)

Of course, one should also consider the environmental costs of coal mining. We’ve written recently about upstream impacts of mountaintop-removal mining in Appalachia.

Yesterday Kentucky’s governor Steve Beshear focused instead on coal development’s economic impact — about 1,000 construction jobs and 200 full time jobs for a $1 billion plant according to a Louisville Courier-Journal report. Beshear translates that into political terms in Peabody Energy’s press release on their proposed gas plant: “Projects like this … enjoy rock solid support: More than 80 percent of Kentucky residents support coal gasification.”

I’m not sure about Governor Beshear’s poll data, but one thing’s for sure: There’s nothing stealthy about his feelings for coal.

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This post was created for Energywise, IEEE Spectrum’s blog on green power, cars and climate

China’s Green Plug-In Machine

BYD's F3DM plug-in hybridWhile major automakers such as GM and Toyota prepare to put batteries front and center in their first plug-in hybrid vehicles, a Chinese battery maker has beaten them to the road. As of yesterday, Shenzen-based BYD Auto — a subsidiary of leading Chinese rechargeable battery producer BYD Group — is selling the world’s first mass-produced plug-in hybrid car, according to Bloomberg. This battery-loaded version of BYD’s F3 sedan is said to travel up to 100 kilometers (62 miles) on stored grid power alone.

Many observers deride the car’s styling as plain and derivative. BBC global business correspondent Peter Day, who drove BYD’s plug-in this weekend, says they’re missing the point: “Critics say this is a copycat car, but that is how the Japanese auto industry started.”

Green Car Congress reports that the plug-in is dubbed the F3DM after its ‘dual-mode’ hybrid system. Misleadingly dubbed, that is, because the vehicle actually operates in three distinct modes:

  • a battery-powered EV mode
  • a series-hybrid mode whereby the gas engine recharges the batteries while the electric motors drive the wheels, and
  • a parallel-hybrid mode whereby both motors and engine drive the wheels.

This marks a contrast with GM’s Chevy Volt, due out two years from now, which dispatches with the parallel hybrid option.

BYD Auto’s parent company is making lithium batteries for the car using employ lithium iron phophate cathodes — a safer design than the lithium cobalt oxide cathodes used in cell phone batteries. Boston-area battery developer A123 uses the same chemistry; A123 is believed to have lost out in the competition to supply the first-generation Chevy Volt but is in the running for many other hybrids and electric vehicles in development.

BYD says it will bring the F3DM to the U.S. market in 2011, but must first pass U.S. crash tests and set up a dealer network. It has a well-connected U.S. investor to help navigate the U.S. hurdles: billionaire investor Warren Buffet, whose Berkshire Hathaway investment group bought a one-tenth stake in BYD for $230 million in September.

China beats the U.S. and Europe to market with what was supposed to be GM’s signature development. The headline reinforces a growing sense that China is suddenly a green technology developer to be reckoned with. A top wind power market. Major photovoltaics production. It looks like the Cleantech Group may have got it right earlier this month when, summing up its forum in Shanghai, it concluded that China could soon be, “the world’s leading laboratory, market for and exporter of clean technologies.”

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This post was created for the Technology Review guest blog: Insights, opinions and analysis of the latest in emerging technologies