SunSide terms of use
Important assumptions for using SunSide sunlight estimates.
Updated October 13, 2026.
SunSide is a free informational planner. Results describe simplified geometric sunlight potential, not a guarantee of actual exposure, an architectural survey or a property valuation. Buildings, trees, clouds, surface dimensions and local atmospheric conditions can change real sunlight.
Check important decisions with measurements of the real space and appropriate professional advice where needed. Availability and results are provided without a guarantee. SunSide does not currently sell products, accept payments or offer paid subscriptions.
The solar engine uses SunCalc under the BSD-2-Clause license. Its published notice and disclaimer are available at that link.