Pool pumps consume between 3,000 to 5,000 kWh of electricity per year. In California this often equals an added electricity bill of more than $1,000 per year, excluding the additional cost of heating your pool. Most older pool pumps are single-speed—they run at full speed whenever they are on, making them oversized for the average pool. California even outlawed the sale of single-speed residential pool pumps over 1 hp in 2009 because of how wasteful they can be.
How Can I Save Money?
Switching to a variable speed pool pump can reduce your pump’s energy consumption by 50%-75% due to a slight decrease in pump speed and flow as shown in the table below:*
*Source: US Department of Energy. http://www.nrel.gov/docs/fy12osti/54242.pdf
Sample Savings Calculation:
According to a model from Energy Start, switching a single-speed pump that runs for 8.5 hours per day to a variable-speed pump will save 4,262 kWh or $938 per year and $12,184 over the pump's life (10 years).