The CSI-EPBB calculator is funded by the municipal utilities and other agencies that rely on its public
availability. If you represent a municipal utility and would like to contribute to the ongoing support of the calculator
and ensure that your service territory is fully supported, please email AESC at csi-epbb@aesc-inc.com.
California Solar Initiative Incentive Calculators
11/24/2014
The CSI Calculator has been updated to allow systems with CEC-AC ratings up to 175%
of the inverter rated capacity.
4/14/2011
The CSI Calculator has been updated to display estimated monthly kWh production
for the proposed and reference PV systems. Please be aware that actual
performance of an installed PV system is based on numerous factors, including
some factors that may not be considered in the CSI-EPBB Calculator. While this
calculator relies on industry-standard assumptions, and is driven by
NREL’s PV Watts v. 2
calculator, there may be other factors that affect the output of your PV System.
10/27/2010
The CSI Calculator has been updated to include support for tracking systems when
calculating estimated production and incentives for systems that are applying
for Performance Based Incentives (PBI).
7/30/2009
The CSI
EPBB Calculator User Guide has been updated to accommodate the changes made to
the CSI program that took affect July 1st, 2009. These requirements include,
but are not limited to, new shading study requirements as well as a requirement
that PV modules be tested and approved with the CEC's new testing requirements,
per the SB 1 guidelines.
6/29/2009
The CSI EPBB Calculator has been updated to accommodate the changes made to
the CSI program that take affect July 1st, 2009. These requirements include,
but are not limited, new shading study requirements as well as a requirement
that PV modules be tested and approved with the CEC's new testing requirements,
per the SB 1 guidelines.
The new CEC SB1 Guidelines and the CSI Program Handbook can be found
here.
2/13/2009
The CSI EPBB calculator web site has been enhanced to include support
for the Multifamily Affordable Solar Housing (MASH) program. MASH provides solar
incentives on qualifying existing affordable housing multifamily dwellings.
The goals of the program are to:
- Stimulate the adoption of solar power in the affordable housing sector;
- Improve energy utilization and overall quality of affordable housing through
the application of solar and energy efficiency technologies;
- Decrease electricity use and costs without increasing monthly household
expenses for affordable housing building occupants; and
- Increase awareness and appreciation of the benefits of solar among affordable
housing occupants and developers.
12/3/2008
The CSI EPBB calculator web site has been enhanced to include support
for other solar electric generating technologies. Although other solar
electric generating technologies includes concentrating photovoltaics,
these products are termed "non-PV" in Section 2.2.3 of the January 2008
CSI Handbook and Chapter 3 of the December 2007 Senate Bill 1 Guidelines.
To be eligible for the CSI program as an other solar electric generating
technology, these systems must be approved and follow the guidelines set
forth in Section 18 of the CSI Handbook. A full list of approved other
solar electric generating technologies will be maintained on the
Go Solar California web site.
The calculator for standard PV systems hasn't been changed, other than
being reformatted.