Solar panels in Norman, OK
Roofs in Norman get about 1,781 hours of usable sunlight a year — more than 81% of the cities we've measured. Here's what that means in cost, savings and payback, using real rooftop data rather than a national average.
Check your specific roof in Norman → City averages are a starting point; your own roof's size, pitch and shading change the answer a lot.
What a typical Norman solar system costs
A 18-panel system (7.2 kW) is about right for an average Norman home using 10,800 kWh a year. It would produce roughly 10,900 kWh annually and offset 100% of that usage.
| System | Size | kWh/yr | Net cost | Saves/yr | Payback |
|---|---|---|---|---|---|
| 8 panels | 3.2 kW | 4,844 | $6,384 | $586 | 10.9 yrs |
| 12 panels | 4.8 kW | 7,266 | $9,576 | $879 | 10.9 yrs |
| 16 panels | 6.4 kW | 9,689 | $12,768 | $1,172 | 10.9 yrs |
| 20 panels | 8 kW | 12,111 | $15,960 | $1,346 | 11.9 yrs |
| 26 panels | 10.4 kW | 15,744 | $20,748 | $1,456 | 14.2 yrs |
How we worked this out for Norman
Every number on this page comes from these seven steps. Nothing is a national average — the sunlight figure is measured from Norman rooftops.
| # | Step | Result |
|---|---|---|
| 1 | What one panel makes here 400W ÷ 1000 × 1,781 sun hrs × 0.85 system losses |
606 kWh/yr |
| 2 | Panels needed to cover typical usage 10,800 kWh ÷ 606 kWh per panel |
18 panels |
| 3 | System size 18 panels × 400W |
7.20 kW |
| 4 | Annual production 7.20 kW × 1,781 hrs × 0.85 |
10,900 kWh/yr |
| 5 | Installed cost 7,200 W × $2.85 per watt, then −30% federal credit |
$14,364 |
| 6 | Annual saving 3,780 kWh used as generated × 12.1¢ + 7,120 kWh exported × 12.1¢ |
$1,310/yr |
| 7 | Payback $14,364 ÷ $1,310 per year |
11 years |
Step 6 matters more than it looks. Only 35% of what a system this size produces in Norman is used the moment it is generated; the other 7,120 kWh is exported and credited one-for-one under net metering. Because exports here are credited at or near retail, that split changes the payback very little — 10.9 years against the 11 we show. In places where exports pay a fraction of retail the same split moves payback by years, which is why we model it explicitly rather than assuming.
Assumptions: 400W panels, 15% system losses (inverter, wiring, heat, soiling), $2.85/W installed, 10,800 kWh typical annual household use, 12.1¢/kWh electricity. Change any of those and every figure above moves — which is exactly why a single national "solar costs X" number is misleading.
Notice that payback barely improves as systems get bigger, and eventually gets worse. That's because you can only save money on electricity you were going to buy anyway. Once a system covers your usage, extra panels mostly generate exports at a much lower rate.
Why Norman gets 1,781 sun hours
That figure comes from Google's analysis of real rooftops across Norman — it already accounts for shading from trees, chimneys and neighbouring buildings, which is why it's lower than the raw "hours of daylight" figures you'll see elsewhere. An unusually open, unshaded roof in Norman reaches about 1,813 hours, roughly 2% better than typical.
The numbers behind this page
| Typical usable sunlight | 1,781 hrs/yr |
|---|---|
| Unshaded roof | 1,813 hrs/yr |
| Electricity rate (Oklahoma avg) | 12.1¢/kWh |
| Installed cost assumed | $2.85/W |
| Panel size assumed | 400 W |
| Federal tax credit | 30% |
| Typical household usage | 10,800 kWh/yr |
| Power used as generated | 35% |
| Paid for exported power | full retail (net metering) |
| Rooftops sampled here | 12 |
| Google imagery from | 2020 |
When Norman actually produces
Annual totals hide the thing that catches people out: 34% of Norman's yearly sunlight arrives in May–July, and just 15% across November–January.
| Month | Sun hrs | Share of year |
|---|---|---|
| Jan | 90 | |
| Feb | 115 | |
| Mar | 146 | |
| Apr | 178 | |
| May | 198 | |
| Jun | 206 | |
| Jul | 202 | |
| Aug | 185 | |
| Sep | 157 | |
| Oct | 124 | |
| Nov | 96 | |
| Dec | 83 |
Output is unusually steady — only about 2.5× between Jun and Dec. Norman is close enough to the equator that seasonal variation is mild, which makes sizing a system considerably more predictable.
The annual total is measured from Google's rooftop imagery. Its split across months is calculated from solar geometry at Norman's latitude, not separately measured, so treat the monthly figures as the shape of a typical year rather than a forecast.
How Norman compares to the other 788 cities
| Measure | Norman | Rank of 788 |
|---|---|---|
| Usable sunlight | 1,781 hrs | 153rd |
| Sunlight lost to shade | 2% | 732nd most |
| Median roof size | 328 m² | 86th largest |
| Electricity rate | 12.1¢ | 695th highest |
| Payback | 11 yrs | 423rd fastest |
| Grid carbon | 758 kg/MWh | 190th dirtiest |
What actually stands out about Norman:
- Unusually open roofs. Only 2% of available sunlight is lost to obstruction in Norman — better than all but 56 of the 788 cities measured. Most roofs here get close to their theoretical maximum.
- Plenty of roof to work with. Typical roofs here fit around 104 panels — roughly 5× what an average home needs. Roof size will not be what limits your system in Norman.
- Cheap electricity is the headwind. Oklahoma power costs about 12.1¢/kWh. Low rates are good news generally, but they lengthen solar payback — there is simply less bill to displace.
- Older imagery. Google's aerial capture of Norman dates from 2020. Tree growth and new construction since then are not reflected.
Cities with almost the same sunlight
These are the closest matches to Norman's 1,781 usable sun hours from other states and provinces. Same sunlight, different electricity prices — which is usually what decides whether solar is worth it.
| City | Sun hrs | Rate | Payback |
|---|---|---|---|
| Miami Gardens, FL | 1,780 | 15.3¢ | 8.7 yrs |
| Daly City, CA | 1,783 | 31.2¢ | 8.8 yrs |
| Fort Myers, FL | 1,783 | 15.3¢ | 8.7 yrs |
| Killeen, TX | 1,783 | 15.1¢ | 8.8 yrs |
Nearby cities
See all of Oklahoma → statewide sunlight, rates, incentives and every city we've measured.
Norman solar questions
How many solar panels do I need in Norman?
About 18 panels for an average home using 10,800 kWh a year. Norman roofs get 1,781 usable sun hours, so each 400W panel produces roughly 606 kWh annually. A typical Norman roof fits about 104 panels, so roof space is unlikely to be your limit.
Is solar worth it in Norman?
At 12.1¢/kWh and 1,781 sun hours, a typical system pays for itself in about 11 years and returns roughly $18,381 over a 25-year panel life. That is slower than average, so compare several quotes before committing. Exported power earns full retail credit here.
How much do solar panels cost in Norman?
A 7.2 kW system costs about $20,520 before incentives and $14,364 after the 30% federal tax credit. That works out near $2.85 per watt installed. Roof pitch, shading, electrical panel upgrades and equipment choice move the price most, which is why quotes for the same house can differ by thousands.
Worth reading before you buy
Estimates only, generated 2026-08-22 from Google Solar API rooftop samples and average Oklahoma electricity rates. Not a quote and not financial advice. Your roof, usage, utility plan and local incentives will change these numbers — get real quotes before buying.