Oncor files interconnect deal for 1,127-MW Wolf Hollow II project

Oncor Electric Delivery Co. LLC on Dec. 1 filed with the Public Utility Commission of Texas a revised Standard Generation Interconnection Agreement with Wolf Hollow II Power LLC for a gas-fired project that is scheduled for commercial operation around July 1, 2017.

The Point of Interconnection for this project is located in Hood County, Texas, at the Mitchell Bend switching station in Oncor’s Comanche Peak-to-DeCordova and Wolf Hollow-to-Rocky Creek 345-kV transmission lines. The agreement covers three units with capacities of 320 MW, 320 MW and 487 MW, resulting in a gross capacity of 1,127 MW under ISO conditions. The covered units are two General Electric H65 combustion turbines and one GE H84 steam turbine.

A listed project contact is: Wolf Hollow II Power LLC, Attn: Edward Lesh, 1941 Wolf Hollow Ct., Granbury, Texas 76048, Edward.Lesh@constellation.com.

Senior executives from Exelon GenerationAlstom, General Electric and Zachry were joined in July 9 by community leaders to officially break ground on the construction of a new combined-cycle gas turbine (CCGT) at Exelon’s Wolf Hollow Generating Station. The new CCGT will provide an additional 1,000 MW to the existing 704-MW natural gas plant. The new unit will be one of the most environmentally friendly and efficient CCGTs in the state and the nation, using General Electric’s most advanced gas turbine technology and an air cooling system, eliminating the use of water to cool the unit, Exelon said in a July 9 statement.  

The new unit at Wolf Hollow is one of two new CCGTs the company is developing in Texas. The other 1,000-MW CCGT will be constructed at Exelon’s existing Colorado Bend Generating Station in Wharton, Texas, which is approximately 60 miles outside of Houston. Both units are expected to achieve commercial operation in 2017. Exelon said July 8 that it was officially starting construction on the 1,000-MW Colorado Bend addition.

Exelon Corp. (NYSE: EXC), headquartered in Chicago, does business in 48 states, the District of Columbia and Canada. Exelon is one of the largest competitive U.S. power generators, with more than 32,000 megawatts of owned capacity comprising one of the nation’s cleanest and lowest-cost power generation fleets.

About Barry Cassell 20414 Articles
Barry Cassell is Chief Analyst for GenerationHub covering coal and emission controls issues, projects and policy. He has covered the coal and power generation industry for more than 24 years, beginning in November 2011 at GenerationHub and prior to that as editor of SNL Energy’s Coal Report. He was formerly with Coal Outlook for 15 years as the publication’s editor and contributing writer, and prior to that he was editor of Coal & Synfuels Technology and associate editor of The Energy Report. He has a bachelor’s degree from Central Michigan University.