PanelCensus

Guasti Construction

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Solar installer based in California · installer record #5687 resolved from 507 public installation records.

At a glance

Guasti Construction is a solar installer with 507 recorded installations totalling 3.9 MW, dated 2006 to 2025. All of its records are in California, where it ranks 453rd of 6,220 profiled installers by volume and 738th of 10,536 nationally. The median installed price across 457 priced systems is $3.79/W before incentives.

Recorded installs
507
Total capacity
3.9 MW
DC nameplate
Median system
6.8 kW
≈ $27,680
Median price
$3.79/W
pre-incentive · 457 priced
Third-party owned
1%
lease / PPA
Battery attach
9%
First recorded
2006
Last recorded
2025

Track record

Install volume by year

2006
1$7.06/W
2007
1$13.30/W
2008
7$8.47/W
2009
3$9.33/W
2010
5$6.48/W
2011
9$6.34/W
2012
13$5.57/W
2013
5$4.43/W
2014
35$3.99/W
2015
36$4.20/W
2016
38$4.24/W
2017
28$4.02/W
2018
34$3.58/W
2019
25$3.36/W
2020
19$3.44/W
2021
35$3.40/W
2022
78$3.35/W
2023
84$3.53/W
2024
35$4.28/W
2025
18$4.01/W

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

Latest records

Most recent recorded installs

DateLocationSizePriceOwnership
Sep 23, 2025Phelan, CA2.8 kW$10,660Host-owned
Sep 19, 2025Idyllwild, CA10 kW$36,000Host-owned
Aug 26, 2025Victorville, CA3.2 kW$11,380Host-owned
Jul 29, 2025Idyllwild, CA2.3 kW$9,664Host-owned
Jul 9, 2025Apple Valley, CA3.2 kW$11,540Host-owned
Jun 23, 2025Oak Hills, CA6.4 kW$27,695Host-owned · battery
Jun 23, 2025Apple Valley, CA3.8 kW$23,162Host-owned
Jun 21, 2025Apple Valley, CA8.4 kW$32,555Host-owned · battery
Jun 13, 2025Apple Valley, CA6.6 kW$11,421Host-owned · battery
Jun 3, 2025Yermo, CA3.6 kW$32,999Host-owned

See all 507 installations →searchable & filterable; export to CSV with a free account

Service geography

California
509

Busiest cities

Apple Valley, CA 156Hesperia, CA 79Victorville, CA 48Phelan, CA 38Oak Hills, CA 34Barstow, CA 16Lucerne Valley, CA 12

Record

Installer ID
PC-5687
First recorded install
Mar 8, 2006
Last recorded install
Sep 23, 2025
Priced records
457

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How does Guasti Construction compare with other installers in California?

By recorded installations Guasti Construction ranks 453rd among the 6,220 installers based in California with five or more records. Its median price of $3.79/W is about 11% below the California median of $4.26/W. Its median system, 6.8 kW, is about 15% above the state median of 5.9 kW. under 1% of its recorded installations are third-party owned (lease or power-purchase agreement), against 29% across California. 9% include battery storage, compared with 16% of California records. Installers of similar recorded volume in California include North State Energy Solar (509), California Solar Integrators (507) and Golden Gate Electric (507).

How has Guasti Construction's installation volume changed?

Guasti Construction's earliest dated installation on record is from 2006. It has recorded installations in 20 calendar years. The busiest year was 2023, with 84 installations. 2025, its latest year with records, has 18. Its median price per watt moved from $7.06/W in 2006 to $4.01/W in 2025. The most recent recorded installation is dated Sep 23, 2025.

Where does Guasti Construction install solar?

All recorded installations are in California. The cities with the most of its installations are Apple Valley, CA (156), Hesperia, CA (79), Victorville, CA (48), Phelan, CA (38) and Oak Hills, CA (34).

Frequently asked questions

How many solar installations has Guasti Construction completed?

PanelCensus records 507 installations by Guasti Construction, from Mar 8, 2006 to Sep 23, 2025, totalling 3.9 MW of capacity. Public reporting varies by state, so the company's true total may be higher.

What does Guasti Construction charge for solar?

The median installed price across 457 priced systems is $3.79/W before incentives (median system 6.8 kW, about $27,680). The California median is $4.26/W.

Where does Guasti Construction install solar?

All 507 recorded installations are in California, the most of them in Apple Valley.

Is Guasti Construction still installing solar?

The most recent installation attributed to Guasti Construction in the public records is dated Sep 23, 2025; 2025 has 18 recorded installations. Records reach PanelCensus months to a couple of years after installation, so recent activity may not appear yet.

Does Guasti Construction install leased or PPA solar systems?

4 recorded installations by Guasti Construction (under 1%) are third-party owned — a lease or power-purchase agreement; across California the share is 29%.

Does Guasti Construction install battery storage?

47 recorded installations by Guasti Construction (9%) 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, “Guasti Construction, solar installer (California)”, https://panelcensus.com/installers/california/guasti-construction-5687 (data as of September 21, 2026).