Permit values
Solar installation cost in Denver
Declared value is what the contractor reported to the building department, which is what the permit fee is calculated from. It is usually the contract value excluding tax, and it runs below a retail quote. Treat it as the floor of the market, not the price. Why the permit and the quote disagree.
What the spread looks like
Every valued permit in the window, grouped by declared value. The last bar holds everything above the 95th percentile, so one unusually large job does not flatten the rest.
By city
| City | Permits | Median | Middle half |
|---|---|---|---|
| Aurora | 125 | $19,650 | $13,718 – $24,661 |
| Boulder | 101 | $24,744 | $10,466 – $36,355 |
| Centennial | 40 | $7,499 | $3,434 – $24,042 |
Month by month
| Month | Permits valued | Median |
|---|---|---|
| August 2026 | 108 | $23,404 |
| September 2026 | 125 | $15,945 |
| October 2026 | 99 | $19,378 |
Complete calendar months only. The current month is left out until it ends.
Who pulled the most solar permits in Denver
By permit count over the same window, out of the contractors the building departments name.
- 1NAMASTE SOLAR ELECTRIC INC29 (28.4%)
- 2ENERGY TRANSITION PARTNERS INC dba16 (15.7%)
- 3PHOTON BROTHERS13 (12.7%)
- 4GRAND VALLEY SOLAR LLC7 (6.9%)
- 5CUSTOM SOLAR LLC6 (5.9%)
- 6GREEN GRID TECHNOLOGIES DBA3 (2.9%)
- 7SMART WAVE SOLAR3 (2.9%)
- 8PROGREEN SOLAR LLC3 (2.9%)
- 9TESLA ENERGY OPERATIONS INC3 (2.9%)
- 10MR ELECTRIC OF BOULDER2 (2%)
Method
Permit Dawn reads the building departments in City of Aurora, City of Centennial, Douglas County, City and County of Denver and City of Boulder. Each permit gives the address, the work (usually with the squares and the material), the value and the issue date. Only Denver and Boulder name the contractor: Aurora, Centennial and Douglas County do not publish a contractor or owner name, so those columns are blank on most Denver rows. every night and keeps every residential permit they publish. This page counts the solar permits issued in August 2026, September 2026, October 2026 — 333 of them, 333 carrying a declared value (100%). Duplicates and permits a city later re-published are excluded, along with values below $500 and above $2,000,000, which are placeholders rather than jobs. Medians and quartiles, not averages: a handful of very large jobs would drag a mean somewhere no homeowner would recognise.