The Situation
The customer, a leading supplier of building materials to the construction industry, was aiming to reduce the costs associated with the dewatering process at their quarry in North Yorkshire. An SLD pump set was operational for twelve hours on every day of the year, to prevent the quarry from flooding. Diesel was being consumed at a rate of 127,000 litres per year, equating to an annual running cost of £76,200.
The Solution
The Energy Check was completed onsite in accordance with the ISO 14414 Pump System Energy Assessment Standard, and revealed the potential for considerable savings to be made, both in terms of cost and in a reduction in carbon emissions. The pump would be mounted on a floating pontoon, with a winch to enable the pontoon to be floated to and from shore. The 75kW Vertical Line Shaft Pump and pontoon would be assembled by the engineers at HAYLEY 24/7 DEXIS, and delivered to site on a Hiab vehicle.
"A COMPLETE PAYBACK ON THE INITIAL INVESTMENT WAS SECURED WITHIN A LITTLE OVER 18 MONTHS."
The Result
As a result of changing the pump system at the quarry, the customer has been able to enjoy an annual saving of £51,000 on pump energy costs alone. This has made their quarry dewatering operation far more cost-effective, with a full return on investment secured in under twelve months. The amount of diesel being consumed by the previous pump set was having an adverse effect on the environmental sustainability of the operation. By switching to a single electric-powered alternative, this has been improved dramatically.