Page 263 - Solar Power in Building Design The Engineer's Complete Design Resource

PROCEDURE FOR CALCULATING THE CALIFORNIA SOLAR INCENTIVE REBATE 233

■ Incentive rate in dollars per watt.
■ Rebate incentive cash amount if system is qualified as EPBB.

CALIFORNIA SOLAR INITIATIVE RESERVATION
FORM CALCULATIONS
Like the EPBB form referenced earlier, the CSI reservation is also a Web page spread-
sheet that can be accessed at the CSI Web page. Data required to complete the solar
equipment are the same as the ones used for EPBB, except that the EPBB Design
Factor derived from the earlier calculation must be inserted in the project incentive
calculations.
The California Solar Initiative Program Reservation form consists of the following
six major information input data fields:

1 Host customer. The information required includes the customer’s name, business
class and company information, and taxpayer identification; and a contact person’s
name, title, mailing address, telephone, fax, and e-mail.
2 Applicant information if the system procurer is not the host customer.
3 System owner information.
4 Project site information—same as that for EPBB. System platform information such
as available building or ground area must be specified. In this file the designer must
also provide the electrical utility service account and meter numbers if available. For
new projects there should be a letter attached to the reservation form indicating the
account procurement status.
5 PV and inverter hardware information identical to the one used in calculating EPBB.
6 Project incentive calculation. In this field the designer must enter the system rating
in kilowatts (CEC) and Design Factor data obtained from the EPBB calculation.

When these entries are completed, the CSI reservation spreadsheet will automati-
cally calculate the project system’s power output size in watts. In a field designated
Total Eligible Project Cost, the designer must insert the projected cost of the system,
which automatically produces a per-watt installed cost, CSI rebate amount, and sys-
tem owner out-of-pocket expenses.
The following CSI reservation request calculation is based on the same hardware
information used in the preceding EPBB calculation. The data entry information and
calculation steps are as follows:
■ Platform—single-axis tracker
■ Shading—none
■ Insolation for zip code 92596, San Bernardino, California = 5.63 average h/day
■ PV module—SolarWorld model SW175 mono/P
■ DC watts—175
■ PTC—158.2
■ PV count—6680
■ Total power output—1057 kW ac