Cision: Enel Green Power North America and Wellington Management have agreed to terms for a 10-year virtual power purchase agreement (VPPA) for an 11 MW portion of the energy delivered to the grid by Enel Green Power's Rockhaven wind project. The arrangement, which is subject to definitive agreements, covers approximately 48 GWh of wind energy annually and the associated renewable energy certificates (RECs) are equivalent to avoiding 30,000 tons of CO2 from the atmosphere each year.