Fixed tilt
No angle changes
- Annual output / 1 kW
- 1,502 kWh
- Extra vs fixed
- Baseline
Size.Solar
Best solar panel angle in Houston
Start with 28° facing South for a fixed setup. Compare seasonal options, then confirm the result against your roof, shade, and local weather.
Turn this angle into a roof plan
Start with 28° South in Houston, then verify the usable roof area and request installer options.
1. Best fixed tilt & direction
28°
28° facing South. Set it once for the entire year.
Planning basis: latitude and estimated annual solar production.
2. Two adjustments / year
Winter: 35° South
Summer: 22° South
Provides a 1.7% gain over the best fixed tilt.
Planning basis: summer and winter production estimates.
3. Four adjustments / year
Summer14° South
Autumn29° South
Winter45° South
Spring29° South
Offers a 4.7% gain over the best fixed tilt.
Planning basis: four seasonal production estimates.
4. Twelve adjustments / year
Jan45° South
Feb45° South
Mar37° South
Apr30° South
May23° South
Jun14° South
Jul14° South
Aug14° South
Sep23° South
Oct30° South
Nov37° South
Dec45° South
Achieves the maximum 4.7% gain over the best fixed tilt.
Planning basis: twelve monthly production estimates.
*Tilt angles are measured from horizontal. Each non-flat result includes the compass direction the panel faces. Gains are estimates based on modeling.
Quick estimate — not a final quote
Good for a quick comparison. For a quote, check your roof, shade, and local weather in a project.
Quote-ready tilt decision
Give installers one fixed-angle target first
Start the quote conversation with 28° South. Seasonal adjustment is only worth pricing if a supplier can show that roughly 4.7% extra production beats the cost, access risk, and warranty complexity of adjustable frames.
Base quote
28° South
Best default for normal roof-mounted systems and the first number to send to installers.
Adjustable option
Winter: 35° South
Summer: 22° South
Four seasonal changes model about 4.7% gain. Monthly adjustment models about 4.7%.
Installer checks
Roof pitch, available rail angles, wind loading, waterproofing, access for cleaning, and whether adjustment affects warranty.
Direction check
In Houston, the practical target is a south-facing array. Shade-free roof space, inverter sizing, and battery goals usually matter more than small angle differences.
Adjustment payoff · 1 kW reference array
Is changing the panel angle worth it in Houston?
Start with the fixed angle. Four seasonal changes model +71 kWh a year (+4.7%) for each 1 kW of panels. Changing the angle every month adds no modeled annual output beyond the seasonal strategy.
These are latitude-based planning estimates, not a supplier quote. The comparison isolates panel angle; adjustable framing, labour, safe roof access, shade, soiling, and warranty terms can change the practical decision.
Twice yearly
2 changes/year
- Annual output / 1 kW
- 1,527 kWh
- Extra vs fixed
- +25 kWh (+1.7%)
Seasonal
4 changes/year
- Annual output / 1 kW
- 1,573 kWh
- Extra vs fixed
- +71 kWh (+4.7%)
Monthly
12 changes/year
- Annual output / 1 kW
- 1,573 kWh
- Extra vs fixed
- +71 kWh (+4.7%)
View the 12-month output values
Estimated monthly production in kWh for each 1 kW of panels.
| Month | Fixed tilt | Seasonal | Monthly |
|---|---|---|---|
| Jan | 86 kWh | 94 kWh | 94 kWh |
| Feb | 96 kWh | 106 kWh | 106 kWh |
| Mar | 119 kWh | 119 kWh | 119 kWh |
| Apr | 139 kWh | 139 kWh | 139 kWh |
| May | 148 kWh | 148 kWh | 148 kWh |
| Jun | 152 kWh | 167 kWh | 167 kWh |
| Jul | 154 kWh | 169 kWh | 169 kWh |
| Aug | 145 kWh | 160 kWh | 160 kWh |
| Sep | 139 kWh | 139 kWh | 139 kWh |
| Oct | 128 kWh | 128 kWh | 128 kWh |
| Nov | 103 kWh | 103 kWh | 103 kWh |
| Dec | 91 kWh | 100 kWh | 100 kWh |
Compare solar panel angles near Houston
See how the recommended fixed angle changes across nearby cities and latitudes.
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