American Electric Power (AEP) has recently signed long-term power purchase agreements for approximately 198 megawatts of renewable energy from two Oklahoma wind farms.

Through the 20-year agreements, AEP, an operating unit of Public Service Company of Oklahoma (PSO), will purchase 98.9 megawatts (MW) from a wind farm in Elk City, Okla., being developed by NextEra Energy Resource (formerly FPL Energy) and 99 megawatts from an expansion of Horizon Wind Energy’s Blue Canyon facilities north of Lawton, Okla.

Both sites are expected to be operational by December 31.

With these agreements, AEP has contracted to add 653 megawatts of renewable wind energy to its generation mix in the last two years.

“We are on target to achieve our voluntary goal of adding 1,000 megawatts of new renewable generation to serve our customers by 2011,” said Michael G. Morris, AEP chairman, president and chief executive officer.

Including the new PSO agreements, AEP’s generation mix includes 310 MW of wind turbines owned and operated by AEP in Texas and another 1,120 MW of long-term wind energy purchase agreements for a total of 1,430 MW of wind energy in the company’s generation portfolio.