Answers to Key Questions
1. Rebates and Credits
2. The Costs
3. Solar Production
4. Environmental Impact
5. Financing
6. The Solar Technology
7. Design Considerations
8. Residential Solar
9. ABC Solar News
10. The ABC Solar Team
See our last website
|
|
For example, a 25,000 square foot roof at 60% coverage will accommodate
1,000 solar panels at 180 watts each which equals 180KW DC.
Each panel is about 15 square feet. This system will generate 27,000 kWh a month on average.
Commercial Solar Example
System Size | 180,000
| No of panels | 1,000
| Size of Panels in DC Watts | 180
| Sun Hours (4.2 matches SCE calculator) | 4.2
| Electric Rate | $0.25
| Electric Rate Growth | 5.45%
| Total Installed Cost Estimate | $1,538,117
| Rebate Estimate | $296,671
| Fed Tax Credit (30%) | $372,434
| Total Before Depreciation | $869,012
1st year depreciation bonus | $434,506
| 5 year depreciation | $434,506
| Total After Depreciation | $0.00
|
| Estimate Tax Rate | 40%
| Annual Solar kWh production | 275,940
| Annual Solar Production Value | $68,985
| 20 Year Solar Value | $2,392,609
| 40 Year Solar Value | $9,307,787
| Internal Rate of Return (IRR) | 17.17%
| 20 Year Return on Investment (ROI) | 175%
| 40 Year Return on Investment (ROI) | 971% | | |
THIS IS AN ESTIMATE We will make a proposal specific to your company's situation.
The Solar rebate is calculated with the following information:
csi-epbb.com calculator says this system will produce 270,817 kWh a year
Step 4 of the California Rebate Program is $0.22 per kWh produced during first 5 years
Please note that all commercial rebates require a 1% deposit paid to the Rebate Administrators. This means the 1000 panel system will require a rebate deposit of $3,472.00.
The following is from the required SCE CSI rebate application process website at www.csi-epbb.com.
Please remember that ABC Solar Inc will handle turnkey all the details of your solar installation.
Proposed Reference
| Site Specifications:
| ZIP Code | 92110 | 92867
| City | San Diego | Orange
| Utility | SDG&E |
| Customer Type | Commercial |
| PV System Specifications: | |
| PV Module Mitsubishi Electric Corporation: | PV-MF180UD4 |
| Number of Modules | 1000 | 1000
| DC Rating (kW STC) | 180.0000 | 180.0000
| DC Rating (kW PTC) | 159.0000 | 159.0000
| Inverter | SMA America:SB7000US (208V) |
| Number of Inverters | 30 | 30
| Inverter Efficiency (%) | 95.50 % | 95.50 %
| Shading | Minimal Shading | Minimal Shading
| Array Tilt (degrees) | 15 |
| Array Azimuth (degrees) | 180 |
| Optimal Tilt (proposed azimuth) | 17 |
| Optimal Tilt (facing South) | 17 | 17
| Results
| Annual kWh | 267,562 (a) |
| at optimal tilt | 269,634 (b) |
| facing south at optimal tilt | 269,634 (c) | 270,459 (d)
| Summer Months | May-October | May-October
| Summer kWh | 150,339 (e) |
| at optimal tilt | 150,411 (f) |
| facing south at optimal tilt | 150,411 (g) | 156,162 (h)
| CEC-AC Rating | 151.845 kW |
| Systems greater than or equal to 50 kW (CEC-AC rating) are ineligible for EPBB incentives.
| Design Correction1 | 99.952% |
| Geographic Correction2 | 99.695% |
| Design Factor3 | 99.647% |
| Incentive Rate | $1.89/Watt Eligible Incentive4 | $1.90/Watt Reference Incentive
| Incentive5 | $287,487 |
| Report Generated on | 2/24/2008 | 1:45:17 PM
| The CSI-EPBB calculator is a tool available to the public and participants of the CSI program, whose sole purpose is to determine the EPBB Design Factor and calculate an appropriate incentive level based on a reasonable expectation of performance for an individual system. The results of the calculator should not be interpreted as a guarantee of system performance. Actual performance of an installed PV system is based on numerous factors, and may differ with the results summarized in the CSI-EPBB calculator. For this reason, contractors, participating customers, and other interested parties should only utilize the calculator to determine an appropriate incentive when applying to the CSI incentive program. Additional uses for the calculator other than its intended purpose as stated above are not endorsed or encouraged.
|
Notes:
Design Correction: This is the ratio of the summer output of the proposed system (e) and the summer output of the summer optimal system at the proposed location (f).
Geographic Correction: This is the ratio of the annual output of the summer optimal south facing system at the proposed location (c) and the annual output of the summer optimal south facing system at the reference location (d).
Design Factor: This is the product of the Design Correction and Geographic Correction.
Eligible Incentive Rate: This is the product of the Design Factor and the current CSI EPBB reference incentive rate (which depends on the selected utility and customer type).
Incentive: This is the total incentive for the proposed system. It is the product of the CEC-AC Rating and the Eligible Incentive Rate.
As of 8/10/07, the CSI-EPBB calculator performs rounding as follows:
Estimated kWh production is rounded to the kWh
CEC-AC rating is rounded to the watt
Design factor is rounded to 5 significant digits
Incentive is rounded to the dollar
|
LADWP REBATE IS AS FOLLOWS
180w Solar Panels - 24v | 1000 | $792,000
| SB7000US | 30 | $105,600
| Mounting Hardware | 1 | $74,415
| Product Sub Total | | $972,015
| Tax | | $80,191
| Shipping | | $20,000
| Product Grand Total | | $1,072,206
| Installation Estimate | | $158,400
| Total | | $1,230,606
| | |
| Solar Rebate estimate (step 4) | Paid over five years | $443,071
| FED tax credit | | $236,261
| 5 year depreciation estimate | | $192,946
| Grand Total | | $358,329 |
The LADWP rebate calculator says this system will make 263,607 kWh a year.
The LADWP rebate math is $0.11 per kWh for 20 year production estimate. The math is:
Estimated Production
*20 years
*0.955 inverter efficiency
*0.80 de-rate factor
*$0.11 rebate per kWh production
Therefore,
263,607 * 20 * .955 * .8 * .11 = $443,071
This rebate is paid in full after successful construction and rebate appliction completion.
The LADWP calculator says this for production
Don't touch that dial! It's time for:
Station Identification
|
Cell ID:
|
0174360
|
State:
|
California
|
Latitude:
|
34.1 ° N
|
Longitude:
|
118.6 ° W
|
PV System Specifications
|
DC Rating:
|
180.0 kW
|
DC to AC Derate Factor:
|
0.770
|
AC Rating:
|
138.6 kW
|
Array Type:
|
Fixed Tilt
|
Array Tilt:
|
17.0 °
|
Array Azimuth:
|
180.0 °
|
Energy Specifications
|
Cost of Electricity:
|
11.9 ¢/kWh
|
|
|
Results
|
Month
|
Solar
Radiation
(kWh/m
2
/day)
|
AC
Energy
(kWh)
|
Energy
Value
($)
|
1
|
4.04
|
16185
|
1932.81
|
2
|
4.69
|
17139
|
2046.74
|
3
|
5.68
|
22877
|
2731.97
|
4
|
6.40
|
24540
|
2930.57
|
5
|
7.02
|
27761
|
3315.22
|
6
|
7.15
|
26912
|
3213.83
|
7
|
7.06
|
27164
|
3243.93
|
8
|
6.95
|
26515
|
3166.42
|
9
|
6.15
|
22757
|
2717.64
|
10
|
5.04
|
19659
|
2347.68
|
11
|
4.42
|
17054
|
2036.59
|
12
|
3.76
|
15045
|
1796.67
|
Year
|
5.70
|
263607
|
31479.95
|