Wind Energy’s Emergence Into Main Stream Abigail Krich President, Boreas Renewables, LLC 2008 NSPE Northeast Region Meeting October 3, 2008 Portland, ME Boreas Renewables, LLC Outline   Current development in ME   Technology - history, present, and future   What caused the recent surge in development   Impacts of wind Boreas Renewables, LLC Surge in ME Wind Development   99 MW of wind power operating in ME   1,487 MW of wind power being actively developed in ME   average project size = 93 MW 5,320 MW potential (Onshore, current technology) Boreas Renewables, LLC Where is the Wind Potential?   Site screening done for ME Governor’s Task Force on Wind Power Development   Yellow is not currently economically viable Boreas Renewables, LLC Standard Large Wind Turbine In Use Today   Lift Device   Horizontal axis   Three blades   Upwind   1.5 - 3 MW   65 - 105 m hub heights How did we get here? Boreas Renewables, LLC The Inside of a Wind Turbine Boreas Renewables, LLC Turbines Being Used in ME   GE 1.5 sle   1.5 MW doubly fed induction generator   77m rotor diameter   11 to 20.4 rpm   Most common turbine installed in U.S. Boreas Renewables, LLC Turbines Being Used in ME   Vestas V90-3.0   3.0 MW doubly fed induction generator   90m rotor diameter   8.6-18.4 rpm   On-board service hoist   Step-up transformer in nacelle   Fiberglass reinforced epoxy and carbon fiber blades Boreas Renewables, LLC Turbines Being Used in ME   Clipper Liberty C96   2.5 MW   Has 4 synchronous permanent magnet generators   Full AC-DC-AC conversion before 4 sources paralleled   96m rotor diameter   9.6-15.5 rpm   On-board 2 ton service hoist Boreas Renewables, LLC Mechanical Wind Mills   First recorded use in Afghan highlands in 7th century BC   Mainly used for grinding grain and pumping water