Reducing water pump and air filtration energy consumption

The largest immediate energy savings in leisure centres and swimming pools are likely to be found with the a/c motors that drive pumps and fans. These would normally run at full speed 24 hours a day, 7 days a week, irrespective of demand.

Installing variable speed drives enables the speed of fans and pumps to be closely controlled and adjusted so they only run at the speed that is required. This can lead to significant costs savings in:

Water filtration pumps: The circulation of water via filtration pumps is the key to safe and efficient pool water management. Variable speed drives enable you to adjust the pump's power depending on the pool's requirements at the time, leading to a much more energy-efficient operation.

Air Handling Units ensure a plentiful supply of warm fresh air throughout the whole building. Variable speed drives allow the dynamic controlling of air unit motor speed, ensuring that the air handling units only work as hard as they need to produce a plentiful supply of quality air.

Cost Savings

What makes this technology so appealing is the amount of energy that can be saved with just small adjustments to motor speed. Reducing speed by 10% can reduce energy consumption by 25%, while 20% less speed can lead to a 50% reduction in costs. (How?)

Generally the cost savings of installing variable speed drives have been around 35%, with a payback period of less than two years.

"Powermaster installed Variable Speed Drives on the pool pumps and air handling units at our Scarborough Indoor Pool, and, as a result, we have seen a substantial reduction in our energy consumption"
Allan Simmonds, Scarborough Borough Council

"Powermaster has installed Variable Speed Drives on the pool circulation pumps at two of our leisure facilities. During normal hours of operation the pump motor speed was reduced by 10% with an even greater reduction through the night. The installation resulted in immediate energy savings for the two properties with no loss in water quality. We have estimated that the savings achieved at one of the facilities has resulted in a payback of 1.16 years"
Stuart Morrow, Stockton-On-Tees Borough Council

Find out more by reading our Case Studies, or please contact us directly if you would like to discuss the possibilities of variable speed drives for your business.

 

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