PLYMOUTH NORTH HIGH SCHOOL WIND TURBINE PROJECT

Model High School Site 41 Obery Street

Plymouth, MA

Atlantic Design Engineers, LLC (Atlantic) conducted an initial wind turbine siting and feasibility analysis of the PNHS property.

Atlantic completed a series of studies to obtain a better understanding of the impacts associated with a turbine in this location including:

Shadow Flicker Impact Study Photosimulations from various locations around the site Zone of Visual Influence (ZVI) Map

Atlantic then completed a noise monitoring program and Acoustic Analysis to determine the background (ambient) noise levels at various locations surrounding the site; and selected a representative turbine (900kW EWT) to acquire a better understanding of the specific acoustic impacts the project may have on nearby residential neighborhoods.

Project History

Conceptual Site Plan – 900 kW Turbine

Conceptual Site Plan – 750 kW Turbine

Conceptual Site Plan – 225 kW Turbine

Energy production numbers are based on the following: Predicted Wind Resource:

5.4 m/s at 40 m (131’) AGL 5.7 m/s at 55 m (180’) AGL 6.4 m/s at 75 m (246’) AGL

Annual energy production loss factor of 8%

75 m EWT 54-900: 900 kW Rated Capacity: 2,124,000 kWh/year*

71 m Gamesa G58: 850 kW Rated Capacity: 2,117,000 kWh/year

55 m Aeronautica 54-750: 750 kW Rated Capacity: 1,604,000 kWh/year

40 m Aeronautica 29-225: 225 kW Rated Capacity: 313,000 kWh/year

*: Model used to complete Shadow Flicker, Visual, and Noise Impact Assessments

Energy Production Estimates

QUESTIONS/COMMENTS