Welsh Water

IBASS data analysis leads to 60% of total savings achieved at waste water treatment site.

The Client

Welsh Water is the sixth largest of the ten regulated water and sewerage companies in England and Wales. Responsible for providing over three million people with a continuous, high quality supply of drinking water and for taking away, treating and properly disposing of the wastewater that is produced. Welsh Water is fully committed to delivering best quality service at least possible cost, whilst reducing their environmental impact.

The Brief

RUMM was asked to investigate one of Welsh Water’s waste water treatment sites to evaluate whether additional metering could be used to lead to savings and if this could be replicated across more of its sites.

The Method

RUMM designed and installed a metering infrastructure and undertook extensive data analysis of half hourly consumption through IBASS to identify areas of saving energy opportunity. The data analysis identified 60% of the total savings achieved at the site in areas such as optimising process control, the application of variable speed drives and selective (rather than constant) agitation of water tanks. RUMM project managed the implementation of the on-site projects and monitored and reported upon the reduced consumptions and costs.

The Results

The Welsh Water/RUMM partnership is on target to reduce the energy consumption at this site by more than the 19% predicted after 2 years. Reduced costs have been achieved whilst improving the quality of treatment control and reducing environmental impact. RUMM and Welsh Water are now looking at how best to apply the partnership methodology to more sites across their estate.

Why it Worked

A structured approach to develop the partnership with the client and to evaluate 1 site to a satisfactory conclusion provides a sound basis to consider and evaluate any potential expansion. 60% of the total savings identified and achieved came through the dogged pursuit of consumption data which demonstrates benefits that meters can offer when appropriately deployed.