Grundfos approached a facilities management company suggesting that they could benefit from undertaking energy checks on the pump equipment at the various buildings they are responsible for maintaining.
The timing was good, as the company had recently been tasked with finding additional savings beyond those that had already been achieved on lighting and water usage for a larger sized office block. The decision was taken to undertake an energy check on the pump system to ascertain the extent of any savings that would be possible. This type of check offers any company the opportunity to look at their installed pump base and gain an understanding of where any saving might lie and what those savings might be.
In this instance, the resultant comprehensive report showed that the pumps that were supporting the heating and cooling systems offered excellent savings opportunities. These pumps had been in situ for many years and the energy check and its subsequent report made it clear that, just by converting the existing fixed speed pumps to variable speed replacements, this one action alone would deliver energy savings of 774,823kw pa. This is equal to a whopping 45% energy saving and offered a return on investment of just 1.7 years.
The indicated pumps have now been replaced and the facilities management company is so impressed with their results that they requested more energy checks be undertaken on other premises in their portfolio.