Renewable Energy Technology Assessments - Kauai Island Utility ...

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Kaua’i Island Utility Cooperative Renewable Energy Technology Assessments 9.0 Wind 9.3.1 Area #1: Kalaheo This is a large region of moderate Class 3-5 winds filling the area around Kalaheo from the mountains to the coast. It is an agricultural area deemed likely compatible with wind power, with significant tracks of relatively flat terrain which would lower construction costs. The highest wind resource identified in the wind maps are along the coast and southwest of the town of Kalaheo, both of which are close to KIUC transmission lines. Black & Veatch estimates the wind resource in this area could yield capacity factors near 35 percent based on analysis of available wind data. The site is not geographically limited to further expansion, so additional project phases could be added. Alexander & Baldwin is the area’s largest landowner, and there are other significant private holdings as well. Due to the relatively high wind resource, flat topography, and transmission access, Black & Veatch ranked this site as a “high” priority for further investigation. A photo of the area is shown in Figure 9-3. Figure 9-3. View from Kalaheo Site Looking South. 21 March 2005 9-6 Black & Veatch
Kaua’i Island Utility Cooperative Renewable Energy Technology Assessments 9.0 Wind 9.3.2 Area #2: Omao A series of low ridges in the foothills north of Lawai make up the Omao area. The ridgeline resource in this area may be difficult to construct, especially sites up the ridges, significantly removed from Highway 50. The best wind sites in the area, according to the wind maps, are along a ridge next to the highway with Class 5 and 6 winds which yield an estimated capacity factor of 34 to 37 percent, and a ridge further north with class 6 and 7 winds which yield an estimated capacity factor of 36 to 40 percent. The nearer ridge is close to major transmission lines. The greater resource of the more distant ridge may justify extending transmission and roads. The near ridge would be appropriate for a 7 MW wind farm, with the possibility of an expansion doubling its capacity in the future. The far ridge has room for approximately 40 MW of installed capacity. Land ownership in this area is mixed and visibility may be an issue due to the proximity of the highway. Due to the strong resource and proximity to roads and transmission, Black & Veatch ranked this site as a “moderate” priority for further investigation. A photo of the area is shown in Figure 9-4. Figure 9-4. View of Ridge at Omao Site with Transmission. 21 March 2005 9-7 Black & Veatch
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11401 Lamar Black & Veatch Corporat
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Principal Investigators: Ryan Pletk
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Kaua’i Island Utility Cooperative
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