Appendices - GSA
Appendices - GSA
Appendices - GSA
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Table B-16: Details of Solar Ventilation Air Preheating Calculations<br />
LPOE Site Name<br />
Alburg, VT (Joint<br />
ownership)<br />
SVP<br />
Ventilation<br />
Rate<br />
(CFM)<br />
Solar Vent<br />
Preheat<br />
Area (ft 2 )<br />
Annual Gas<br />
Savings<br />
(therms/yr)<br />
Initial Cost<br />
($)<br />
Annual Utility<br />
Cost Savings<br />
($/yr)<br />
Solar Vent<br />
Preheat<br />
Payback<br />
Period<br />
(yrs)<br />
1,24 261 477 $9,414 $1,904 5<br />
Highgate Springs 1, VT 323 0 0 $0 $0 5<br />
Highgate Springs 2, VT 4,729 2,087 3,806 $75,137 $7,667 10<br />
Highgate Springs 3, VT 640 199 362 $7,153 $727 10<br />
Blaine, WA 11,540 3,316 6,046 $119,379 $13,153 9<br />
Danville, WA 2,550 823 1,800 $29,612 $2,653 11<br />
Laurier, WA 1,679 406 888 $14,603 $2,737 5<br />
Mataline Falls. WA 1,547 0 0 $0 $0 17<br />
Oroville, WA 24,285 289 592 $10,413 $4,668 2<br />
Point Robert, WA 11,069 3,248 6,642 $116,913 $12,099 10<br />
Sumas, WA 4,060 0 0 $0 $0 19<br />
Blaine, WA 11,540 3,316 6,046 $119,367 $11,012 11<br />
Blaine, WA 32,791 0 0 $0 $0 18<br />
Kenneth Ward, WA 5,903 0 0 $0 $0 19<br />
Totals $404,658.00<br />
Note that each technology is recommended as part of the optimized solution for a<br />
site, and these sizes minimize life-cycle costs. In other words, it is possible for<br />
an LPOE site to cost effectively generate more RE than the optimized solution<br />
indicates, but the life cycle costs would be higher.<br />
146
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