HVAC Checks built this energy savings estimator for practical BAS and HVAC opportunity screening. It is intended to help turn schedule cleanup, reset strategies, ventilation improvements, and tuning work into a planning-level savings story that can be discussed with facility teams and owners.
It does not replace formal measurement and verification, but it is a useful first step when you need to decide whether a BAS correction, controls tune-up, or recommissioning task is worth pursuing.
Use annual utility and operating assumptions that match the system or site scope under review. This page is best used for planning-level BAS and HVAC optimization discussions, not guaranteed savings claims.
BAS optimization can reduce HVAC energy use by eliminating unnecessary runtime, trimming fan and pump pressure targets, adjusting reset logic, and improving the match between system output and actual load. The biggest savings often come from cleaning up schedules, correcting overrides, fixing sequences that run at worst-case values, and using trend data to verify that the control strategy holds under real operating conditions.
If the estimate suggests real opportunity but the path forward is still fuzzy, HVAC Checks can help review schedules, resets, trend behavior, and controls issues so the savings story is tied to actual system behavior.