Utility / operator
MASSACHUSETTS BAY TRANS AUTHORITY
7,468 recorded solar installations interconnected by MASSACHUSETTS BAY TRANS AUTHORITY — mostly in Massachusetts.
Dataset updated . Sources: LBNL Tracking the Sun + permits + state programs + USGS/EIA utility-scale.
Installations interconnected
7,468
Total capacity
167.1 MW
DC nameplate
States
1
Median size
7.3 kW
Median $/W
$2.61/W
pre-incentive
Third-party owned
0%
lease / PPA
Growth
Installations by year
1998
1
2003
2
2004
6
2006
1
2007
5
2008
6
2009
17
2010
5
2011
25
2012
93
2013
130
2014
308
2015
467
2016
391
2017
341
2018
341
2019
358
2020
306
2021
245
2022
267
2023
243
2024
188
2025
152
2026
8
Latest records
Most recent recorded installs
| Date | Location | Size | $/W | Segment |
|---|---|---|---|---|
| Jan 29, 2026 | Cambridge, MA | 10.1 kW | $3.55/W | COM |
| Jan 28, 2026 | Cambridge, MA | 5.2 kW | $7.24/W | COM |
| Jan 23, 2026 | Cambridge, MA | 9.2 kW | $4.45/W | COM |
| Jan 20, 2026 | Cambridge, MA | 4.9 kW | $17.59/W | COM · 🔋 |
| Jan 14, 2026 | Cambridge, MA | — | — | COM · 🔋 |
| Jan 13, 2026 | Cambridge, MA | 8.8 kW | $3.96/W | COM |
| Jan 5, 2026 | Cambridge, MA | 5.4 kW | $3.56/W | COM |
| Jan 5, 2026 | Cambridge, MA | 6 kW | $6.45/W | COM |
| Dec 29, 2025 | Cambridge, MA | 4.5 kW | $17.44/W | COM · 🔋 |
| Dec 29, 2025 | Cambridge, MA | 12.8 kW | $3.75/W | COM |
See all 7,468 installations →searchable & filterable; export to CSV with a free account
Service geography
- Massachusetts
- 7,468
Frequently asked questions
How many solar installations has MASSACHUSETTS BAY TRANS AUTHORITY interconnected?
PanelCensus records 7,468 installations interconnected by MASSACHUSETTS BAY TRANS AUTHORITY, from Dec 31, 1998 to Jan 29, 2026, totalling 167.1 MW of capacity across 1 state. Coverage varies by state, so actual totals may be higher.
Where does MASSACHUSETTS BAY TRANS AUTHORITY operate?
Most recorded activity is in Massachusetts (7,468).