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contractor

SEMPER SOLARIS

El Cajon, CA

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State license record

License jurisdiction
California Source
License number
978152 Source
License status
CLEAR Source
Classifications
B, C10, C20, C39, C46 Source
Issue date
10/26/2012 Source
Expiration date
10/31/2026 Source
Source phone
(619) 715 4054 Source

California CPUC interconnection activity

Matched interconnected applications
28 Source
Approved in latest 12 months
28 Source
Approved in latest 36 months
28 Source
First matched approval
2026-05-05 Source
Latest matched approval
2026-05-29 Source
Median system size (kW DC)
7 Source
Median reported cost/watt
$6 Source
Valid cost observations
28 Source
Cost evidence
Median shown from 5+ observations Source
Utility-reported installer names
Semper Solaris Construction Inc Source
CPUC data through
2026-05-31 Source
Activity record scope
Aggregated residential photovoltaic interconnection application records matched by utility-reported CSLB number. Application count is activity evidence, not unique-project, quality, outcome, availability, or customer-satisfaction data. Source

Pricing

Published prices

Historical residential PV installed cost

$6.41

per watt AC / median source-reported cost per watt across matched residential photovoltaic interconnection applications

Current source Checked 2026-08-10 / Applications approved through 2026-05-31

Includes: Host-owned applications report total system cost; third-party-owned applications report ITC cost basis.

Excludes: Current bids, incentives, tax credits, financing terms, and any work not represented in the source application.

Median of 28 valid source Cost/Watt values. Applicant-reported values are not independently verified and may mix total system cost with ITC cost basis.

California Distributed Generation Statistics source

Market benchmarks

Residential rooftop PV installed price

Median $4

per watt DC / gross installed price before incentives or tax credits, nominal 2024 dollars

CA state benchmark / Host-owned, stand-alone residential PV systems installed in 2024, excluding rows explicitly marked self-installed

Current source Effective Systems installed in 2024 / Checked 2026-08-11

Record Maps calculation from the public project file; 20th-80th percentile $2.94-$4.86/WDC. Rows explicitly marked third-party-owned or self-installed and nominal prices outside $1-$20/W were excluded. Unknown ownership flags were retained. This is market context, not a contractor quote.

Berkeley Lab U.S. Distributed Solar and Storage 2025 public data source

Benchmarks describe the named market, not this provider's quoted price.

Source trail

Research workflow

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