The National Nuclear Security Administration (NNSA) broke ground on construction of the federal government’s largest wind farm. NNSA awarded a contract to Siemens Government Technologies (Siemens) to construct and operate the Pantex wind farm. The newly constructed wind farm will consist of five 2.3 MW turbines located on 1,500 acres of government-owned property east of the Pantex plant. Using an energy savings performance contract, Siemens will provide a turn-key wind farm system for 20 years that includes a five-year service, maintenance and warranty agreement with operating and maintenance options from years six through 10. Siemens will also provide an annual energy production guarantee. Construction is expected to be completed by the summer of 2014.