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ROI Calculator

Below is a sample project economics estimator. A customer with a .12-cent kWh rate, a state incentive of $100,000, and a 6 m/s wind speed will realize around a 5-year payback. After that, the customer will start generating free electricity for years to come.

For simplification purposes, additional revenue from advertising and RECs were not included. Installation costs were estimated and may vary. Extended service plans were not included.

 

Model Single
WindCube Price 279,000
Installation Est. 100,000
Initial Investment 379,000
State Incentive 100,000
Net Investment 279,000
Wind Speed (m/s) 6
Estimated kWh 117,125
Electric Rate (¢ / kWh) 0.12
Est. Inflation Rate (%) 5%
Federal Tax Credit 30%
Tax Basis 222,150
IRR (year 1 - 30) 16.80%
Estimate only. See your finance department.
YEAR Income Cash Value
Depreciation		 Total
Incentives		 Total Cash
Flow		 Estimated
Payback
0     100,000 -279,000  
1 14,055 53,316 113,700 $181,071 -97,929
2 14,758 14,218   $28,975 -68,954
3 15,496 8,886   $24,382 -44,572
4 16,270 5,332   $21,602 -22,970
5 17,084 5,332   $22,416 -554
6 17,938 1,777   $19,715 19,161
7 18,835     $18,835 37,996
8 19,777     $19,777 57,773
9 20,766     $20,766 78,538
10 21,804     $21,804 100,342
11 22,894     $22,894 123,236
12 24,039     $24,039 147,275
13 25,241     $25,241 172,516
14 26,503     $26,503 199,019
15 27,828     $27,828 226,847
16 29,219     $29,219 256,066
17 30,680     $30,680 286,746
18 32,214     $32,214 318,961
19 33,825     $33,825 352,786
20 35,516     $35,516 388,302
21 37,292     $37,292 425,594
22 39,157     $39,157 464,751
23 41,115     $41,115 505,865
24 43,170     $43,170 549,036
25 45,329     $45,329 594,364
26 47,595     $47,595 641,960
27 49,975     $49,975 691,935
28 52,474     $52,474 744,408
29 55,097     $55,097 799,506
30 57,852     $57,852 857,358