On the agenda for the May 19 meeting of the Ohio Power Siting Board is an application from Hardin Wind LLC to add new specs for a wind turbine to the board’s prior approval of a 300-MW project.
The board has authorized Hardin Wind to construct, operate, and maintain a wind facility consisting of up to 105 wind turbines, with a maximum nameplate capacity of MW. The turbine manufacturers and types approved for this project are: REpower MM100 (2.05 MW) and M122 (3 MW); the Nordex N117 (2.4 MW); the Vestas V110 (2 MW) and V117 (3.3 MW); the Gamesa G97 (2 MW) and G114 (2 MW); the General Electric GE100 (1.7 MW) and GE103 (1.7 MW); and the Suzlon S111 (2.1 MW).
In this pending application, the company proposes a capacity increase to the Gamesa G114 turbine model from 2.0 MW to 2.5 MW. The turbine model capacity increase is the result of technological improvements to the turbine, including the gearbox. The G114 turbine’s dimensions, including rotor diameter and hub height, remain the same. Further, the range of potential blade velocities and cut-out speeds for both the certificated and the proposed turbine model are the same, thereby resulting in similar probabilities for blade shear and ice throw associated with this turbine model at both a 2.0 MW and a 2.5 MW capacity.
Hardin Wind is not proposing to revise any turbine locations through this application. The applicant further states that the Gamesa G114 (2.5 MW) has the same operational maximum sound power output as the 2.0 MW version. The overall maximum nameplate capacity of 300 MW would not change.
Board staff submitted a May 3 report recommending approval of the change, saying: “Staff finds, if the Applicant increased the capacity from 2.0 MW to 2.5 MW for the previously certificated Gamesa G114 turbine model, the original conditions of the certificate are adequate to ensure that adverse environmental impacts would continue to be minimized for this project.”
Hard Wind holds a certificate issued in 2014 to construct the Scioto Ridge Wind Farm, to be located in Lynn, McDonald, Roundhead, and Taylor Creek townships in Hardin County, and Richland and Rushcreek townships in Logan County.
Because this application only seeks board approval for a capacity rating increase (2 MW to 2.5 MW for the G114 model), no other aspects of the approved project are being modified. All approved turbine sites remain unchanged as well as the location of the project’s collector substation, access roads and collection lines. Of the currently approved turbines, the Vestas V117 has the highest nameplate capacity at 3.3 MW and if selected would result in a 91-turbine project (300 MW). The approved turbines with the lowest nameplate capacity are the General Electric 100 and GE 103 at 1.7 MW and if selected would result in a 105-turbine project (179 MW). As with the already approved G114 2 MW turbine, selection of the G114 2.5 MW turbine would also result in a 105-turbine project (263 MW).
Hardin Wind is a wholly-owned subsidiary of EverPower Wind Holdings.