Connecticut vs Massachusetts - Solar Energy Comparison
CT
Connecticut
Observed Records
54,917
Reported Capacity
914 MW
Avg Cost
$4.03/W
System Size
16.6 kW
MA
Massachusetts
Observed Records
140,908
Reported Capacity
3,954 MW
Avg Cost
$4.31/W
System Size
28.1 kW
Detailed Comparison
| Metric | Connecticut | Massachusetts |
|---|---|---|
| Observed Installation Records | 54,917 | 140,908 |
| Reported Capacity (MW) | 914 | 3,954 |
| Avg Cost ($/W) | $4.03 | $4.31 |
| Median Cost ($/W) | $3.78 | $4.17 |
| Avg System Size (kW) | 16.6 | 28.1 |
| Residential % | 87% | 92% |
Connecticut - Cost Trend ($/W)
Connecticut Cost per Watt
Massachusetts - Cost Trend ($/W)
Massachusetts Cost per Watt
What the Dataset Shows
- Massachusetts has more observed records in the source dataset (140,908 vs 54,917)
- Connecticut has lower average cost ($4.03/W vs $4.31/W)
- Massachusetts has more total capacity (3,954 MW vs 914 MW)
Record counts and reported capacity reflect coverage in the LBNL release, not an overall ranking of state solar quality. A homeowner decision also depends on roof orientation, current utility tariffs, financing and local programs.
Primary dataset: LBNL Tracking the Sun 2024 release. Values are aggregates of observed records, not complete statewide totals.