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
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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:
csiepbb.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.csiepbb.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:  PVMF180UD4 
 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  MayOctober  MayOctober
 Summer kWh  150,339 (e) 
 at optimal tilt  150,411 (f) 
 facing south at optimal tilt  150,411 (g)  156,162 (h)
 CECAC Rating  151.845 kW 
 Systems greater than or equal to 50 kW (CECAC 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 CSIEPBB 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 CSIEPBB 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 CECAC Rating and the Eligible Incentive Rate.
As of 8/10/07, the CSIEPBB calculator performs rounding as follows:
Estimated kWh production is rounded to the kWh
CECAC 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 derate 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


