PanelCensus

Alter Systems

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Solar installer based in California · active in 2 states · installer record #773 resolved from 149 public installation records.

Recorded installs
149
Total capacity
766 kW
DC nameplate
Median system
4.7 kW
≈ $25,292
Median price
$6.36/W
pre-incentive
Third-party owned
3%
lease / PPA
Battery attach
1%
First recorded
2006
Last recorded
2017

Track record

Install volume by year

2006
13$7.66/W
2007
28$8.05/W
2008
11$8.13/W
2009
14$8.00/W
2010
8$5.42/W
2011
8$5.49/W
2012
13$4.92/W
2013
3$4.52/W
2014
17$4.12/W
2015
18$3.55/W
2016
13$3.13/W
2017
3$2.92/W

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

Latest records

Most recent recorded installs

DateLocationSizePriceOwnership
Dec 11, 2017Sebastopol, CA4.8 kW$14,000Host-owned
Jul 12, 2017Boulder Creek, CA6.9 kW$22,076Host-owned
Jan 13, 2017Oakland, CA6.5 kW$18,000Host-owned
Dec 27, 2016San Ramon, CA—$28,000Host-owned · battery
Nov 21, 2016Lafayette, CA7.2 kW$20,000Host-owned
Oct 17, 2016Santa Rosa, CA6.1 kW$15,000Host-owned
Sep 8, 2016Oakland, CA4.6 kW$13,000Host-owned
Aug 11, 2016El Cerrito, CA4.7 kW$15,000Host-owned
Aug 1, 2016Berkeley, CA2.4 kW$9,500Host-owned
Jul 18, 2016Berkeley, CA6.4 kW$25,693Host-owned

Service geography

California
143
Oregon
6

Busiest cities

Berkeley, CA 23Oakland, CA 12Oakland, CA 9Berkeley, CA 5Ashland, OR 5Concord, CA 4Sebastopol, CA 4Walnut Creek, CA 4

Record

Installer ID
PC-773
First recorded install
Apr 11, 2006
Last recorded install
Dec 11, 2017
Priced records
119

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Frequently asked questions

How many solar installations has Alter Systems completed?

PanelCensus records 149 installations by Alter Systems, from Apr 11, 2006 to Dec 11, 2017, totalling 766 kW of capacity. Dataset coverage varies by state, so actual totals may be higher.

What does Alter Systems charge for solar?

The median installed price across 119 priced systems is $6.36/W pre-incentive (median system 4.7 kW, ≈ $25,292). Third-party-owned (lease/PPA) share: 3%.

Where does Alter Systems install solar?

Recorded installs span 2 states, led by California (143), Oregon (6).

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