Texas Westmoreland Coal Co.’s Jewett Mine is a 35,000-acre surface mine complex located between Dallas and Houston. It currently operates four active pits. It supplies lignite (a grade of coal) under a lignite supply contract to the adjacent two-unit Limestone Electric Generating Station owned by NRG
Texas. A low-cost, base-load power plant utilizing emission control technologies, Limestone was designed
and built specifically to burn lignite from Jewett. 
Limestone enjoys a solid position in the Electric Reliability Council of Texas (ERCOT) regional power market, which is heavily weighted with natural gas-fired power generation and thus more expensive and price-volatile than a market more dependent on coal-fired power. The Jewett Mine has in-place capacity currently up to 6.5 million tons of lignite annually.
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