California Distributed Generation Statistics publishes all IOU solar PV net energy metering (NEM) interconnection data from the three large California Investor Owned Utilities (IOUs) which include Pacific Gas & Electric Company (PG&E), Southern California Edison Company (SCE), and San Diego Gas & Electric Company (SDG&E) per CPUC Decision (D.)14-11-001. California Distributed Generation Statistics also publishes all IOU data from the California Solar Initiative incentive program per California Senate Bill 1 (SB-1) and other publicly available incentive program data sets.

Distributed Generation Interconnection Program Data

NEM Currently Interconnected Data Set

The Currently Interconnected Data Set provides a full view of all interconnected solar PV (NEM) systems within PG&E, SCE and SDG&E service territories. This data set contains all interconnected projects (excluding pending and decommissioned) with one entry per interconnection address/project and is created from the NEM Interconnection Application Data Set. It is updated monthly.

 Download Currently Interconnected Data Set  Current as of Dec. 31, 2016 (28.1MB)

NEM Interconnection Applications Data Set

The Interconnection Applications Data Set contains all solar PV (NEM) interconnection applications including those that are pending or decommissioned within PG&E, SCE and SDG&E service territories. When a project is modified, a new interconnection application must be submitted to the IOUs, so some projects will have multiple interconnection applications. Applications with critical data errors are excluded from the Interconnection Applications Data Set (and thus the Currently Interconnected Data Set), but can be found in the Excluded Applications file. It is updated monthly.

Distributed Generation Incentive Program Data

CSI Working Data Set

The California Solar Initiative (CSI) Working Data Set represents the CSI incentive application data from PG&E, SCE and SDG&E service territories as it exists in the database with the exception of applications removed due to erroneous data. Applications with critical data errors can be found in the Excluded Applications file. Any charts or graphs depicting CSI data on California Distributed Generation Statistics are created from the CSI Working Data Set.

CSI Measured Production Data Set

CSI incentive applications that receive Performance-Based Incentives (PBI) also provide monthly system production data, which can be found in the Measured Production Data Set.

CSI 15-Minute Interval Data

As part of the program’s measurement and evaluation effort, the CSI program authorized the program contractor Itron to install production meters on 504 CSI systems in 2010. Fifteen minute interval generation data is being collected from these systems on a quarterly basis through 2016. The datasets are available for download below, separated by utility. Please note: the files are large and may take several minutes to download.

CSI Thermal Program Data

The CSI Thermal Program publishes a weekly data set of all incentive applications for electric-, propane- and natural gas- displacing solar hot water systems. This data set includes incentive applications from PG&E, SCE, SDG&E and Southern California Gas Company (SCG) service territories.

Low-Income Solar PV Data

The Low-Income Solar PV Data Set contains all applications received through the Single-family Affordable Solar Homes (SASH) programs and the Multi-family Affordable Solar Housing (MASH) programs. This data set includes incentive applications from PG&E, SCE and SDG&E territories and is updated weekly. Please note that SASH 1.0 and MASH 1.0 incentive applications are also included in the CSI Working Data Set. For more information about this data set please see the Read Me document below.

 Download Low-Income Solar PV Data Set  Current as of Mar. 22, 2017 (3.2MB)

New Solar Homes Partnership Program (NSHP) Data

The New Solar Homes Partnership program makes incentive data for new solar homes available on the California Energy Commission website. This data set includes incentive applications from PG&E, SCE, SDG&E and Bear Valley Electric Service (BVES) service territories.

Self Generation Incentive Program (SGIP) Data

The Self Generation Incentive Program publishes a weekly data set of all incentive applications which includes all incentives from 2001 for a variety of distributed generation technologies. This data set includes incentive applications from PG&E, SCE, SDG&E and SCG service territories.

Emerging Renewables Program (ERP) Data

The California Energy Commission makes data sets available containing all data for the now-closed Emerging Renewables Program, which provided incentives statewide for a variety of renewable distributed generation technologies.

Publicly Owned Utility (POU) Solar Incentive Data

Publicly owned utilities (POU) are required, under Senate Bill 1, to report on the progress of their solar incentive programs to the California Energy Commission (CEC) on a yearly basis. CEC publishes a summary of this data annually.