Solar developer
NULL NULL; JOHN WILLIAMS
478 recorded solar installations developed by NULL NULL; JOHN WILLIAMS — mostly in District of Columbia.
Dataset updated . Sources: LBNL Tracking the Sun + permits + state programs + USGS/EIA utility-scale.
Installations developed
478
Total capacity
3.9 MW
DC nameplate
States
1
Median size
7.4 kW
Median $/W
—
pre-incentive
Third-party owned
0%
lease / PPA
Growth
Installations by year
2022
8
2023
120
2024
240
2025
93
2026
17
Latest records
Most recent recorded installs
| Date | Location | Size | $/W | Segment |
|---|---|---|---|---|
| Feb 6, 2026 | Washington, DC | 10.6 kW | — | COM |
| Feb 6, 2026 | Washington, DC | 7 kW | — | COM |
| Feb 6, 2026 | Washington, DC | 6.6 kW | — | COM |
| Feb 6, 2026 | Washington, DC | 5.3 kW | — | COM |
| Feb 6, 2026 | Washington, DC | 8.8 kW | — | COM |
| Feb 6, 2026 | Washington, DC | 4.8 kW | — | COM |
| Jan 30, 2026 | Washington, DC | 4 kW | — | COM |
| Jan 30, 2026 | Washington, DC | 7.6 kW | — | COM |
| Jan 30, 2026 | Washington, DC | 4.4 kW | — | COM |
| Jan 23, 2026 | Washington, DC | 7.6 kW | — | COM |
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Service geography
Frequently asked questions
How many solar installations has NULL NULL; JOHN WILLIAMS developed?
PanelCensus records 478 installations developed by NULL NULL; JOHN WILLIAMS, from Nov 2, 2022 to Feb 6, 2026, totalling 3.9 MW of capacity across 1 state. Coverage varies by state, so actual totals may be higher.
Where does NULL NULL; JOHN WILLIAMS operate?
Most recorded activity is in District of Columbia (478).