Yesterday, September 12th, Everpower filed an extensive amendment to its Scioto Ridge project in Logan and Hardin Counties. The filing includes approximately 70 different documents. The important thing to note here is that Everpower probably filed the amendment on September 12 because the new property line setbacks go into effect on September 15th. By filing yesterday, Everpower seeks to avoid the new setback requirements that would have required them to relocate any turbines that are too close to non-participating property owners.
Everpower also proposes to consider two additional turbine models and to move certain turbines and transmission lines. These changes affect setback measurements, noise modeling and shadow flicker among other things. As a result of the changes, Everpower estimates on Page 23 that:
Of the 52 non-participating residences predicted to receive more than 30 hours of shadow flicker per year, 15 are pending (i.e., landowner is anticipated to become a participant) and 37 are non-participants. However, to assure a worst-case analysis, pending participants have been included with the nonparticipating receptors in the summary above. Table 08-02 summarizes the expected shadow flicker for non-participating receptors exceeding 30 hours/year predicted, comparing the results presented in the original Application with those anticipated under the currently proposed layout.
With respect to the setbacks, Everpower notes at page 32:
(c) Locations of Turbines in Relation to Property Lines and Habitable Residential Structures
The minor shifts in the five turbines do not violate any of the property line setbacks and residential setbacks under the Board’s rules at the time the original Application was filed. As noted below, the average property line setback has increased to 1,201 feet from 1,198 feet and the average residential structure setback has increased to 1,996 feet from 1,989 feet. The project’s setbacks are described below.
(i) Setback to Property Lines
Section 4906-17-08(C)(1)(c)(i) requires that “the distance from a wind turbine base to the property line of the wind farm property shall be at least one and one-tenth times the total height of the turbine structure as measured from its tower’s base (excluding the subsurface foundation) to the tip of its highest blade.” The maximum height of turbines under consideration for the Facility at the time the original Application was filed was 492 feet (150 meters), which yields a property line setback of 541 feet (165 meters). All turbine locations, including the turbine relocations proposed in this Amendment, will comply with these setbacks, and the two new turbine models proposed in this Amendment are less than 492 in total height. As currently sited, the distance between proposed turbines and the nearest non-participating property line ranges from 549 to 2,669 feet, and averages 1,201 feet. The original Application presented a range of 549 to 2,637 feet with an average of 1,198 feet. (Ed’s note: Do not be confused by use of averages!)
(ii) Setback to Habitable Residential Structures
Section 4906-17-08(C)(1)(c)(ii) requires that “the wind turbine shall be at least seven hundred fifty feet in horizontal distance from the tip of the turbine’s nearest blade at ninety degrees to the exterior of the nearest habitable residential structure, if any, located on adjacent property at the time of certification application.” The maximum rotor diameter of the turbines under consideration for the Facility at the time the original Application was filed was 400 feet (122 meters). If the turbine blade were at ninety degrees, the tip would extend from the base of the tower one-half the length of the rotor diameter, or 200 feet (61 meters), which added to 750 feet, yields a total setback of 950 feet. All turbines and locations, including the turbine relocations proposed in this Amendment, will comply with these setbacks, and the two turbine models proposed in this Amendment both have blades less than 200 feet in length. As proposed, the distance between the proposed turbines and the nearest non-participating residential structure ranges from 1,292 to 4,047 feet, and averages 1,996 feet. The original Application presented a range of 1,335 feet to 4,047 feet with an average of 1,989 feet. (Ed’s note: Do not be confused by use of averages!)
With respect to Indian Lake, the amendment states:
(5) Impact on Recreational Areas within One Mile
The impact on recreational areas remains as described in the original Application. Of the turbines that have been shifted, only turbine 25 is within 1 mile of Indian Lake State Park, and it was re-located to the east,
away from the park. Noise and shadow flicker were re-modeled (see Exhibits B and C of this Amendment, respectively), but results for Indian Lake State Park are the same as in the original Application. There are no other recreation areas within one mile of the Facility.
(6) Visual Impact and Mitigation Measures
Visual impact mitigation measures remain as described in the original Application.
There is a great deal of specific information in this 44 page Amendment. The document and all related exhibits with maps and charts for specific areas can be found at the PUCO website by clicking on this link, below…
In the Matter of the Application of Hardin Wind LLC to Amend its Certificate Issued in Case No. 13-1177-EL-BGN