PanelCensus

A1 Sun

Recently active

Solar installer based in California · installer record #186 resolved from 1,085 public installation records.

Recorded installs
1,085
Total capacity
5.4 MW
DC nameplate
Median system
4.6 kW
≈ $23,624
Median price
$4.98/W
pre-incentive
Third-party owned
0%
lease / PPA
Battery attach
21%
First recorded
2007
Last recorded
2025

Track record

Install volume by year

2007
3$9.28/W
2008
7$7.50/W
2009
22$7.50/W
2010
18$6.52/W
2011
25$6.20/W
2012
25$5.59/W
2013
37$4.93/W
2014
29$4.54/W
2015
57$1.12/W
2016
49$4.91/W
2017
41$5.06/W
2018
77$4.78/W
2019
85$4.30/W
2020
87$4.55/W
2021
119$4.11/W
2022
93$4.78/W
2023
116$5.51/W
2024
103$5.35/W
2025
98$6.94/W

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

Latest records

Most recent recorded installs

DateLocationSizePriceOwnership
Dec 30, 2025Berkeley, CA6.6 kW$39,000Host-owned · battery
Dec 30, 2025Oakland, CA7.9 kW$48,859Host-owned · battery
Dec 29, 2025El Cerrito, CA8.8 kW$59,379Host-owned · battery
Dec 26, 2025Berkeley, CA10.6 kW$75,846Host-owned · battery
Dec 26, 2025Oakland, CA4 kW$14,000Host-owned
Dec 26, 2025Hillsborough, CA5 kW$126,437Host-owned
Dec 22, 2025Oakland, CA5.3 kW$43,607Host-owned · battery
Dec 19, 2025Berkeley, CA——Host-owned · battery
Dec 15, 2025Oakland, CA——Host-owned · battery
Dec 12, 2025Berkeley, CA6.6 kW$39,930Host-owned

See all 1,085 installations →searchable & filterable; export to CSV with a free account

Service geography

California
1,091

Busiest cities

Berkeley, CA 463Oakland, CA 190Berkeley, CA 71El Cerrito, CA 60Albany, CA 59Piedmont, CA 45Kensington, CA 31Richmond, CA 31

Record

Installer ID
PC-186
First recorded install
Sep 20, 2007
Last recorded install
Dec 30, 2025
Priced records
932

Is this your company?

Installers will be able to claim this profile, correct records and add licensing, NABCEP credentials and service details. Create a free account to be ready when claims open.

Frequently asked questions

How many solar installations has A1 Sun completed?

PanelCensus records 1,085 installations by A1 Sun, from Sep 20, 2007 to Dec 30, 2025, totalling 5.4 MW of capacity. Dataset coverage varies by state, so actual totals may be higher.

What does A1 Sun charge for solar?

The median installed price across 932 priced systems is $4.98/W pre-incentive (median system 4.6 kW, ≈ $23,624). Third-party-owned (lease/PPA) share: 0%.

Where does A1 Sun install solar?

Recorded installs span 1 state, led by California (1,091).

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