Two wind turbines with a total capacity of 5 megawatts (MW) are estimated to produce enough electricity to meet the annual needs of approximately 2,000 average Vermont households.
A source of local, clean, and stably priced wind power is good for the community of Irasburg and good for Vermont.
The electricity produced will be air-pollution free and will help the State of Vermont reduce its greenhouse gas footprint and reach its goals for more in-state renewable energy.
The wind turbines will be two Goldwind 2.5MW permanent magnet, direct drive with three main components: a three-bladed rotor, a nacelle, and the supporting tower.
The kinetic energy in the wind turns the three blades attached to the rotor. The resulting mechanical power turns the generator to create electricity. The nacelle houses most of the moving parts, sits atop the tower and functions to “yaw” or face into the wind.
The wind turbine towers will be a neutral, off-white color which softens their visual prominence on the horizon and will provide protection from the elements for electrical and communication cables and operational computer equipment, as well as safe access for service personnel. Being enclosed, the turbines prevent birds and raptors from nesting or perching on them. Typical wind turbine components are labeled on the wind turbine diagram included with this package.
As approved by the Federal Aviation Administration (FAA), the wind turbines selected for this project will be up to 499 feet high when a blade is in its highest position. Both wind turbines will have FAA-regulated lighting on top of the nacelle (similar to what is seen at Georgia Mountain Community Wind).
Electrical Collection System
A new electric collection line will carry power generated from the wind turbines to an interconnection point with either the existing Vermont Electric Cooperative local distribution system or the Green Mountain Power existing 46 kV transmission line currently runs west to east, north of the Project area. The proposed interconnection location point is shown on the attached Site Plan.
The electric collection line will be installed underground between the wind turbines and along the access driveway to Kidder Hill Road safety equipment (enabling the project to be switched off at any time as necessary) will be installed at the point of interconnection.
While most access road and turbine pad construction materials are expected to be available within the project site, additional necessary site construction materials will be sourced locally whenever possible. These road and turbine foundation materials would use standard trucks for delivery to the site. Vehicles will utilize the state and local roads in the area in accordance with state and local regulations.
The largest wind turbine components, namely tower sections, blades, hubs and nacelles will require special handling and transport vehicles from the manufacturing facilities to the project site. Transportation regulations regulate oversize/overweight loads and will require the wind turbine components to be shipped with special permits to travel over Vermont’s roads. Specific transportation plans will be coordinated with town, county and state transportation officials and will be subject to Public Service Board approval.
Landworks of Middlebury, Vermont is conducting an aesthetic assessment of the project, which will consider the potential visual impact from the project and associated interconnection facilities. The assessment follows the parameters established by the Public Service Board for energy generation projects using the “Quechee” analysis. Particular to wind energy generation, the aesthetic assessment will consider potential visual impact at least ten miles from the project location. This review will consist of over 318 square miles and 16 towns.
This region contains a mix of residential, agricultural, forestry, commercial, industrial and utility development within the project’s view shed.
The project is not expected to be visible from most scenic resources in the area, as well as population centers in Orleans, Barton and Newport City, due to topography, vegetation, and existing structures. A complete aesthetics analysis is available, a part of the petition filed for a certificate of public good.