PanelCensus

Aon Engineering

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Solar installer based in California · installer record #1024 resolved from 99 public installation records.

At a glance

Aon Engineering is a solar installer with 99 recorded installations totalling 602 kW, dated 2011 to 2021. All of its records are in California, where it ranks 1441st of 6,220 profiled installers by volume and 2,355th of 10,536 nationally. The median installed price across 67 priced systems is $3.12/W before incentives.

Recorded installs
99
Total capacity
602 kW
DC nameplate
Median system
4.6 kW
≈ $12,345
Median price
$3.12/W
pre-incentive
Third-party owned
1%
lease / PPA
Battery attach
0%
First recorded
2011
Last recorded
2021

Track record

Install volume by year

2011
5$6.35/W
2012
7$7.65/W
2013
12$5.00/W
2014
8$6.10/W
2015
29$3.71/W
2016
10$2.26/W
2017
6$1.83/W
2018
17$2.67/W
2019
11$2.77/W
2021
2$3.13/W
2023
6
2026
1

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

Latest records

Most recent recorded installs

DateLocationSizePriceOwnership
Feb 4, 2026San Diego, CA———
Nov 27, 2023San Diego, CA———
Apr 25, 2023San Diego, CA———
Apr 25, 2023San Diego, CA———
Apr 25, 2023San Diego, CA———
Apr 20, 2023San Diego, CA———
Feb 1, 2023San Diego, CA———
May 12, 2021Paso Robles, CA3.5 kW$10,845Host-owned
May 10, 2021Paso Robles, CA9.2 kW$28,921Host-owned
Nov 15, 2019San Diego, CA———

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Service geography

California
114

Busiest cities

San Diego, CA 54Jamul, CA 17El Cajon, CA 10La Mesa, CA 9Spring Valley, CA 3Dulzura, CA 2Santee, CA 2

Record

Installer ID
PC-1024
First recorded install
Aug 2, 2011
Last recorded install
May 12, 2021
Priced records
67

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How does Aon Engineering compare with other installers in California?

By recorded installations Aon Engineering ranks 1441st among the 6,220 installers based in California with five or more records. Its median price of $3.12/W is about 27% below the California median of $4.26/W. Its median system, 4.6 kW, is about 22% below the state median of 5.9 kW. 1% 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 Centerline Construction Management (100), Advance Solar Usa (99) and American Electrical Services (99).

How has Aon Engineering's installation volume changed?

Aon Engineering's earliest dated installation on record is from 2011. It has recorded installations in 11 calendar years. The busiest year was 2015, with 29 installations. 2023, its latest year with records, has 6. Its median price per watt moved from $6.35/W in 2011 to $3.13/W in 2021. The most recent recorded installation is dated May 12, 2021. No installation in the public records is dated within the last three years.

Where does Aon Engineering install solar?

All recorded installations are in California. The cities with the most of its installations are San Diego, CA (54), Jamul, CA (17), El Cajon, CA (10), La Mesa, CA (9) and Spring Valley, CA (3).

Frequently asked questions

How many solar installations has Aon Engineering completed?

PanelCensus records 99 installations by Aon Engineering, from Aug 2, 2011 to May 12, 2021, totalling 602 kW of capacity. Public reporting varies by state, so the company's true total may be higher.

What does Aon Engineering charge for solar?

The median installed price across 67 priced systems is $3.12/W before incentives (median system 4.6 kW, about $12,345). The California median is $4.26/W.

Where does Aon Engineering install solar?

All 99 recorded installations are in California, the most of them in San Diego.

Is Aon Engineering still installing solar?

The most recent installation attributed to Aon Engineering in the public records is dated May 12, 2021; 2023 has 6 recorded installations. Records reach PanelCensus months to a couple of years after installation, so recent activity may not appear yet.

Does Aon Engineering install leased or PPA solar systems?

1 recorded installation by Aon Engineering (1%) is third-party owned — a lease or power-purchase agreement; across California the share is 29%.

Does Aon Engineering install battery storage?

0 recorded installations by Aon Engineering (0%) 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, “Aon Engineering, solar installer (California)”, https://panelcensus.com/installers/california/aon-engineering-1024 (data as of September 21, 2026).