Solar Panel Cost & Installation Data in District of Columbia
Observed Records
13,411
Reported Capacity
209 MW
Dataset Rank
#16
55% residential
17.71¢
Residential Rate (EIA 2024)
4h
Peak Sun Hours/Day
$3,469
Est. Annual Savings
Environmental & Community Impact
- CO₂ Offset/Year
- 234,099 tons
- CO₂ Offset/System/Year
- 12.9 tons
- Installations per 10K Residents
- 200
- State Population
- 670,587
- Est. Annual Production/System
- 19,587 kWh
Estimates use average system size, a 4h/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
- 15.6 kW
- Third-Party Owned
- 41.7%
Installation Growth (Last 5 Years)
1.8K1,7662019
2.2K2,2262020
2.2K2,1852021
1.7K1,6972022
1.3K1,2612023
Installer Names in the Source Records
| Installer | Observed Records |
|---|---|
| -1 | 13,411 |
Panel Brands in the Source Records
| Brand | Observed Records |
|---|---|
| Alps Technology | 13,411 |
County Records - District of Columbia
| County | Observed Records | Reported Capacity |
|---|---|---|
| District of Columbia | 13,359 | 198.9 MW |
Primary dataset: LBNL Tracking the Sun 2024 release. Counts represent records in the source release, not a complete statewide census.