PanelCensus

Quattro Solar

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Solar installer based in California · installer record #9791 resolved from 191 public installation records.

At a glance

Quattro Solar is a solar installer with 191 recorded installations totalling 1.9 MW, dated 2011 to 2025. All of its records are in California, where it ranks 963rd of 6,220 profiled installers by volume and 1,519th of 10,536 nationally. The median installed price across 152 priced systems is $4.34/W before incentives.

Recorded installs
191
Total capacity
1.9 MW
DC nameplate
Median system
5.4 kW
≈ $28,350
Median price
$4.34/W
pre-incentive · 152 priced
Third-party owned
0%
lease / PPA
Battery attach
26%
First recorded
2011
Last recorded
2025

Track record

Install volume by year

2011
1$6.68/W
2012
9$4.29/W
2013
6$2.03/W
2014
10
2015
14$4.79/W
2016
11$4.82/W
2017
21$4.13/W
2018
40$3.56/W
2019
33$3.68/W
2020
21$5.40/W
2021
10$6.73/W
2022
12$5.77/W
2023
7$5.50/W
2024
12$4.54/W
2025
7$5.64/W

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

Latest records

Most recent recorded installs

DateLocationSizePriceOwnership
Dec 4, 2025Mill Valley, CA8.5 kW$65,000Host-owned · battery
Nov 5, 2025Novato, CA2.8 kW$8,500—
Oct 31, 2025Corte Madera, CA4.7 kW$21,645Host-owned
Oct 6, 2025Napa, CA4.3 kW$21,000Host-owned
Aug 20, 2025Walnut Creek, CA11.7 kW$83,400Host-owned · battery
May 14, 2025Fairfax, CA599.5 kW$1,456,511—
May 14, 2025Fairfax, CA94.3 kW$605,000Host-owned
Jul 19, 2024Mill Valley, CA9.7 kW$81,821Host-owned · battery
Jun 26, 2024Novato, CA—$93,300Host-owned · battery
Jun 26, 2024Dillon Beach, CA2 kW$5,500Host-owned

See all 191 installations →searchable & filterable; export to CSV with a free account

Service geography

California
214

Busiest cities

San Rafael, CA 21Petaluma, CA 18Novato, CA 18Mill Valley, CA 14Fairfax, CA 11San Anselmo, CA 10Napa, CA 9Oakland, CA 8

Record

Installer ID
PC-9791
First recorded install
Aug 31, 2011
Last recorded install
Dec 4, 2025
Priced records
152

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How does Quattro Solar compare with other installers in California?

By recorded installations Quattro Solar ranks 963rd among the 6,220 installers based in California with five or more records. Its median price of $4.34/W is roughly in line with the California median of $4.26/W. Its median system, 5.4 kW, is roughly in line with 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. 26% include battery storage, compared with 16% of California records. Installers of similar recorded volume in California include Evo Energy (192), Direct Electric (191) and Nc Solar Construction (191).

How has Quattro Solar's installation volume changed?

Quattro Solar's earliest dated installation on record is from 2011. It has recorded installations in 15 calendar years. The busiest year was 2018, with 40 installations. 2025, its latest year with records, has 7. Its median price per watt moved from $6.68/W in 2011 to $5.64/W in 2025. The most recent recorded installation is dated Dec 4, 2025.

Where does Quattro Solar install solar?

All recorded installations are in California. The cities with the most of its installations are San Rafael, CA (21), Petaluma, CA (18), Novato, CA (18), Mill Valley, CA (14) and Fairfax, CA (11).

Frequently asked questions

How many solar installations has Quattro Solar completed?

PanelCensus records 191 installations by Quattro Solar, from Aug 31, 2011 to Dec 4, 2025, totalling 1.9 MW of capacity. Public reporting varies by state, so the company's true total may be higher.

What does Quattro Solar charge for solar?

The median installed price across 152 priced systems is $4.34/W before incentives (median system 5.4 kW, about $28,350). The California median is $4.26/W.

Where does Quattro Solar install solar?

All 191 recorded installations are in California, the most of them in San Rafael.

Is Quattro Solar still installing solar?

The most recent installation attributed to Quattro Solar in the public records is dated Dec 4, 2025; 2025 has 7 recorded installations. Records reach PanelCensus months to a couple of years after installation, so recent activity may not appear yet.

Does Quattro Solar install leased or PPA solar systems?

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

Does Quattro Solar install battery storage?

50 recorded installations by Quattro Solar (26%) include a battery.

Related installers and places

Dataset updated . 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, “Quattro Solar, solar installer (California)”, https://panelcensus.com/installers/california/quattro-solar-9791 (data as of September 21, 2026).