Frequently Asked Questions
What is the optimal tilt angle for my solar panels?
Set the year-round tilt close to your latitude to maximize annual energy. At Denver (40 N) the optimal angle is roughly 35 to 38 degrees. To favor winter output add 10 to 15 degrees; to favor summer (cooling loads), subtract 10 to 15 degrees.
Do panels always need to face true south in the northern hemisphere?
Yes for maximum annual yield. A deviation of up to 20 degrees southeast or southwest costs less than 5 percent. East or west orientations produce roughly 20 percent less energy per year than the south-facing optimum.
Is adjusting panel tilt seasonally worth it?
Adjustable tilt mounts make sense above 45 degrees latitude where seasonal sun angle swings are large. In practice, manual quarterly adjustments rarely repay the cost or labor except on large systems or sites with strong seasonal demand.
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Important Disclaimer: Estimates for informational purposes only.
This calculator provides estimates for informational purposes only. Results are based on assumptions and may not reflect actual outcomes. Consult qualified professionals in relevant fields before making important decisions based on these results.