Calcola il risparmio energetico passando a una pompa piscina a velocità variabile. Risparmio annuo e periodo di rientro secondo le leggi di affinità.
Variable speed drive (VSD) pool pumps save energy because pump power scales with the cube of speed (Affinity Law). Running a VSD at 50% speed uses only 1/8 the power of full speed — massive savings over long run times.
Enter your current single-speed pump HP, daily run hours, and electricity rate. Then specify the VSD schedule: hours at 100%, 75%, and 50% speed. The calculator compares annual electricity cost and shows percentage savings.
Typical savings range from 50–80%. Add the new pump cost to see payback — most residential VSDs pay back within 2–4 years. Keep total runtime long enough to achieve one full pool turnover per day.