MySolarCheck

Solar Panel Cost & Installation Data in Massachusetts

Observed Records
140,908
Reported Capacity
3,954 MW
Observed Avg Cost
$4.31/W

Median: $4.17/W

Dataset Rank
#6

92% residential

29.35¢
Residential Rate (EIA 2024)
3.8h
Peak Sun Hours/Day
12.3 yrs
Est. Payback Period
$9,838
Est. Annual Savings

Environmental & Community Impact

CO₂ Offset/Year
4,420,603 tons
CO₂ Offset/System/Year
22.1 tons
Installations per 10K Residents
201.8
State Population
6,984,205
Est. Annual Production/System
33,518 kWh

Estimates use average system size, a 3.8h/day state solar-resource proxy and a 14% system-loss assumption. Payback excludes financing and incentives. Context sources: NREL, EIA and EPA eGRID (0.709 metric tons CO₂/MWh).

System Overview

Avg System Size
28.1 kW
Battery Adoption
2.9%
Third-Party Owned
52.7%

Cost Trend ($/W)

Avg Cost per Watt

200120052009201320172022

Installation Growth (Last 5 Years)

Installer Names in the Source Records

InstallerObserved Records
Sunrun36,668
Tesla Energy23,018
Trinity Solar12,458
Direct Energy Solar Formerly Astrum3,361
Roof Diagnostics Solar3,086
Boston Solar2,932
Sungevity Development2,795
Next Step Living2,360
Sunbug Solar2,356
Rgs Energy2,042

Panel Brands in the Source Records

BrandObserved Records
Trina Solar26,879
Jinko Solar Co., Ltd17,500
LG Electronics Inc.17,064
Qcells North America13,345
SunPower8,653
REC Solar8,513
CSI Solar Co., Ltd.7,554
Hanwha Qcells (Qidong) Co. Ltd.6,904
Yingli Energy (China)3,740
SolarWorld3,551

County Records - Massachusetts

CountyObserved RecordsReported Capacity
Middlesex30,085572.8 MW
Worcester19,056947.8 MW
Essex14,374225.6 MW
Bristol13,185410 MW
Norfolk11,818272.6 MW
Barnstable11,097186.2 MW
Plymouth11,012401.1 MW
Hampden7,896310.5 MW
Hampshire6,231172.1 MW
Suffolk6,12982.1 MW
Berkshire3,931186.9 MW
Franklin3,153110.6 MW
Dukes1,27621.8 MW
Nantucket2395.1 MW

Massachusetts Solar Incentives

State-program snapshot

Is Solar Worth It in Massachusetts?

Modeled homeowner analysis

Primary dataset: LBNL Tracking the Sun 2024 release. Counts represent records in the source release, not a complete statewide census.