Semmes Builders

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Solar installer based in California · installer record #77140 resolved from 10 public installation records.

At a glance

Semmes Builders is a solar installer with 10 recorded installations totalling 31 kW, dated 2004 to 2012. All of its records are in California, where it ranks 4512th of 6,220 profiled installers by volume and 7,583rd of 10,536 nationally.

Recorded installs

Total capacity

31 kW

DC nameplate

Median system

3 kW

≈ $24,357

Median price

—

too few priced systems

Third-party owned

lease / PPA

Battery attach

First recorded

2004

Last recorded

2012

Track record

Install volume by year

2004

2$8.87/W

2006

1$12.61/W

2010

3$7.01/W

2011

3$4.71/W

2012

Bars: recorded installs · right column: this installer's median $/W that year.

Latest records

Most recent recorded installs

Date	Location	Size	Price	Ownership
May 18, 2012	Paso Robles, CA	2.8 kW	—	Host-owned
Sep 6, 2011	Atascadero, CA	1.8 kW	—	Host-owned
Sep 6, 2011	Paso Robles, CA	5 kW	$23,679	Host-owned
May 12, 2011	Atascadero, CA	3.6 kW	$16,689	Host-owned
Dec 30, 2010	Atascadero, CA	3.6 kW	$25,034	Host-owned
Mar 30, 2010	Atascadero, CA	3.8 kW	—	Host-owned
Jan 4, 2010	Cambria, CA	2.8 kW	—	Host-owned
Nov 14, 2006	Atascadero, CA	1.4 kW	$17,156	Host-owned
Nov 17, 2004	Paso Robles, CA	3 kW	$25,817	Host-owned
Mar 22, 2004	Atascadero, CA	3 kW	$26,759	Host-owned

Service geography

California: 10

Busiest cities

Atascadero, CA 6Paso Robles, CA 3Cambria, CA 1

Record

Installer ID: PC-77140
First recorded install: Mar 22, 2004
Last recorded install: May 18, 2012
Priced records: 6

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How does Semmes Builders compare with other installers in California?

By recorded installations Semmes Builders ranks 4512th among the 6,220 installers based in California with five or more records. Its median system, 3 kW, is about half of the state median of 5.9 kW. 0% of its recorded installations are third-party owned (lease or power-purchase agreement), against 29% across California. 0% include battery storage, compared with 16% of California records. Installers of similar recorded volume in California include Fv Electrical Services (10), Balken Construction (10) and Certainteed (10).

How has Semmes Builders's installation volume changed?

Semmes Builders's earliest dated installation on record is from 2004. It has recorded installations in 5 calendar years. The busiest year was 2010, with 3 installations. 2012, its latest year with records, has 1. Its median price per watt moved from $8.87/W in 2004 to $4.71/W in 2011. The most recent recorded installation is dated May 18, 2012. No installation in the public records is dated within the last three years.

Where does Semmes Builders install solar?

All recorded installations are in California. The cities with the most of its installations are Atascadero, CA (6), Paso Robles, CA (3) and Cambria, CA (1).

Frequently asked questions

How many solar installations has Semmes Builders completed?

PanelCensus records 10 installations by Semmes Builders, from Mar 22, 2004 to May 18, 2012, totalling 31 kW of capacity. Public reporting varies by state, so the company's true total may be higher.

What does Semmes Builders charge for solar?

The median installed price across 6 priced systems is $7.87/W before incentives (median system 3 kW, about $24,357). The California median is $4.26/W.

Where does Semmes Builders install solar?

All 10 recorded installations are in California, the most of them in Atascadero.

Is Semmes Builders still installing solar?

The most recent installation attributed to Semmes Builders in the public records is dated May 18, 2012; 2012 has 1 recorded installation. Records reach PanelCensus months to a couple of years after installation, so recent activity may not appear yet.

Does Semmes Builders install leased or PPA solar systems?

0 recorded installations by Semmes Builders (0%) are third-party owned — a lease or power-purchase agreement; across California the share is 29%.

Does Semmes Builders install battery storage?

0 recorded installations by Semmes Builders (0%) include a battery.

Related installers and places

Dataset updated September 2026 . Sources: LBNL Tracking the Sun + permit and program records; installer resolved by exact-normalized name matching.

About this data

Source: Lawrence Berkeley National Laboratory's Tracking the Sun, merged with city permit records, state incentive programs and the USGS U.S. Large-Scale Solar Photovoltaic Database / EIA-860 plant registers, as published September 21, 2026 — PanelCensus refreshes it as each source publishes new records. See the methodology for how records are matched, cleaned and scored.

Cite as: PanelCensus, “Semmes Builders, solar installer (California)”, https://panelcensus.com/installers/california/semmes-builders-77140 (data as of September 21, 2026).