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EPA climate change plan would save water

Well, what do you know?

ERCOT

As state regulators fret about how President Obama’s effort to combat climate change would affect the Texas power grid, a new study says the rules would be simpler to adopt than those regulators suggest – and that it would save the state billions of gallons of water annually.

In an analysis released Wednesday, CNA Corporation, a nonprofit research group based in Arlington, Va., said the federal proposal – which requires states to shift from coal power to cut carbon emissions – would slash water use in the Texas power sector by 21 percent. That would save the drought-ridden state more than 28 billion gallons of water each year.

“It’s a surprising finding,” Paul Faeth, the report’s author, said in a statement. “People don’t often associate water conservation with [carbon] cuts, but for Texas, they work together.”

[…]

CNA Corporation’s analysis comes two days after the Electric Reliability Council of Texas (ERCOT), the state’s grid operator, said the proposal would threaten reliability and raise energy costs by as much as 20 percent by 2020 – not including the cost of new power lines needed to keep the grid running.

The CNA report, which relied on a model ERCOT has used in the past, said shifting away from water-guzzling coal power plants and boosting energy efficiency would ease Texas’ water woes.

Compared to Texas’ grid operator, CNA painted a rosier picture of price and reliability effects. With big investments in natural gas and wind power, Texas is already on pace to meet 70 percent of its target by 2029, according to the study. Improving energy efficiency could move the state the rest of the way.

The federal proposal would increase the per-megawatt cost of electricity by 5 percent by 2029, but cut total system costs by 2 percent, the group said.

“We find that the state will be able to meet the final and interim targets with modest incremental effort,” the study said.

See here for the background. The CNA report page is here, the press release is here, the executive summary is here, and the full report is here. It’s not clear to me if CNA was invited by someone to review the EPA plan as it affects Texas or if they did it on their own, but this is a strong argument for going along with what the EPA recommends rather than filing another frivolous lawsuit. The considerable water savings is enough by itself to make this worthwhile.

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