Spire Solar

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Solar installer based in Massachusetts · installer record #11961 resolved from 6 public installation records.

At a glance

Spire Solar is a solar installer with 6 recorded installations totalling 2.8 MW, dated 2006 to 2011. All of its records are in Massachusetts, where it ranks 403rd of 463 profiled installers by volume and 9,214th of 10,536 nationally.

Recorded installs

Total capacity

2.8 MW

DC nameplate

Median system

308 kW

≈ $1,321,591

Median price

—

too few priced systems

Third-party owned

lease / PPA

Battery attach

First recorded

2006

Last recorded

2011

Track record

Install volume by year

2006

2$8.90/W

2010

3$5.70/W

2011

2$4.90/W

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

Latest records

Most recent recorded installs

Date	Location	Size	Price	Ownership
Dec 28, 2011	Sheffield, MA	1,999.7 kW	$9,800,000	Host-owned
Jan 1, 2011	Sheffield, MA	2,000 kW	$8,363,353	—
Jul 9, 2010	Leominster, MA	308 kW	$1,707,265	—
Jul 9, 2010	Attleboro, MA	343.9 kW	$1,961,055	—
Apr 8, 2010	Plymouth, MA	29.9 kW	$208,980	—
Oct 17, 2006	Charlton, MA	8.9 kW	$87,701	—
Jul 1, 2006	Boston, MA	117.4 kW	$935,917	—

Service geography

Massachusetts: 7

Busiest cities

Sheffield, MA 2Charlton, MA 1Leominster, MA 1Boston, MA 1Plymouth, MA 1Attleboro, MA 1

Record

Installer ID: PC-11961
First recorded install: Jul 1, 2006
Last recorded install: Dec 28, 2011
Priced records: 6

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How does Spire Solar compare with other installers in Massachusetts?

By recorded installations Spire Solar ranks 403rd among the 463 installers based in Massachusetts with five or more records. Its median system, 308 kW, is about 41 times the state median of 7.5 kW. 0% of its recorded installations are third-party owned (lease or power-purchase agreement), against 47% across Massachusetts. 0% include battery storage, compared with 4% of Massachusetts records. Installers of similar recorded volume in Massachusetts include Solartherm Technologies (6), Solectria Renewables (6) and Spengler Alternative Energy Consulting (6).

How has Spire Solar's installation volume changed?

Spire Solar's earliest dated installation on record is from 2006. It has recorded installations in 3 calendar years. The busiest year was 2010, with 3 installations. 2011, its latest year with records, has 2. Its median price per watt moved from $8.90/W in 2006 to $4.90/W in 2011. The most recent recorded installation is dated Dec 28, 2011. No installation in the public records is dated within the last three years.

Where does Spire Solar install solar?

All recorded installations are in Massachusetts. The cities with the most of its installations are Sheffield, MA (2), Charlton, MA (1), Leominster, MA (1), Boston, MA (1) and Plymouth, MA (1).

Frequently asked questions

How many solar installations has Spire Solar completed?

PanelCensus records 6 installations by Spire Solar, from Jul 1, 2006 to Dec 28, 2011, totalling 2.8 MW of capacity. Public reporting varies by state, so the company's true total may be higher.

What does Spire Solar charge for solar?

The median installed price across 6 priced systems is $6.35/W before incentives (median system 308 kW, about $1,321,591). The Massachusetts median is $4.17/W.

Where does Spire Solar install solar?

All 6 recorded installations are in Massachusetts, the most of them in Sheffield.

Is Spire Solar still installing solar?

The most recent installation attributed to Spire Solar in the public records is dated Dec 28, 2011; 2011 has 2 recorded installations. Records reach PanelCensus months to a couple of years after installation, so recent activity may not appear yet.

Does Spire Solar install leased or PPA solar systems?

0 recorded installations by Spire Solar (0%) are third-party owned — a lease or power-purchase agreement; across Massachusetts the share is 47%.

Does Spire Solar install battery storage?

0 recorded installations by Spire Solar (0%) include a battery.

Related installers and places

Dataset updated September 2026 . 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, “Spire Solar, solar installer (Massachusetts)”, https://panelcensus.com/installers/massachusetts/spire-solar-11961 (data as of September 21, 2026).