June 2004

(Tonopah, Arizona) – The BVZ team at Sempra Energy Resource’s 1,250 Mw, $500 million Mesquite Generating Station celebrated the plant’s turnover during a dedication ceremony attended by more than 200 employees, subcontractors, customer representatives and local dignitaries.

The last six months of the two-year project were spent completing and commissioning the second power block, while the first power block was already in operation. Power Block One was turned over to Sempra in May 2003, and Power Block Two was turned over in December 2003.

The twin, two-on-one, combined-cycle power blocks, built by BVZ Power Partners, ran continuously through February, and operated 45 percent more efficiently than a typical natural gas-fueled, simple-cycle plant.

In 2002, Zachry’s Plant Civil Services constructed two of the largest evaporation ponds they had ever built. The 70-acre ponds process the massive amount of water used to generate the plant’s electricity, and required the excavation of more than 1.3 million cubic yards of dirt.

The Mesquite project received ZCC Power Division’s “Best of the Best” award for its excellent 2002 safety record, and was ranked first among Arizona projects in Southwest Constructor Magazine.

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