Page 279 - Solar Power in Building Design The Engineer's Complete Design Resource

NET ENERGY VALUE CONTRIBUTIONS OVER THE PV SYSTEM’S LIFE SPAN OF 30 YEARS

$0.15 $0.46 5 YR INCENT. ENERGY 8.00% 7.00% 6.00% 5.00% UNIT COST 108.00% 107.00% 106.00% 105.00% REBATE $979,330 $979,330 $979,330 $979,330 $0.46 $979,330 $979,330 $979,330 $979,330 $979,330 $979,330 $979,330 $979,330 $979,330 $979,330 $979,330 $979,330 MEDIAN COST $979,330 $979,330 $979,330 $979,330 $350,299 $347,056 $343,812 $340,569

4.50% 104.50% $979,330 $979,330 $979,330 $979,330 $979,330 $338,947 $354,200 $370,138 $386,795 $404,200 $422,390 $441,397 $461,260 $482,017 $503,707 $526,374 $550,061 $574,814 $600,680 $627,711 $655,958 $685,476 $716,323 $748,557 $782,242 $817,443 $854,228 $892,668 $932,838 $974,816 $20,001,890 $1,270,688 $21,272,578

ENERGY MEAN VALUE OVER 30 YEARS Applied annual enegy cost escal. Annual % energy cost escalation Energy cost increase multiplier Operational life cycle Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Year 7 Year 8 Year 9 Year 10 Year 11 Year 12 Year 13 Year 14 Year 15 Year 16 Year 17 Year 18 Year 19 Year 20 Year 21 Year 22 Year 23 Year

TABLE 8.8 Net payback in 5 years

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