CCS turned water deregulation into a pooled public-sector auction

On 1 April 2017, public-sector business customers in England could choose their retail water provider. Individually, many agencies had little leverage and were paying retail water-service margins of 6% to 13%.

Crown Commercial Service and regional buying bodies built the first public-sector water framework, then ran an aggregated further competition in October 2017. It covered water and wastewater services for 122 public customers with about £40 million of spend.

The mechanism mixed aggregation with bid design. CCS offered monthly and quarterly billing options, evaluated value and quality, and recommended Castlewater for monthly billing and Business Stream for quarterly billing. By 31 December 2017, 34 customers had signed call-off forms, averaging a 4% reduction against the retail market average, with some saving up to 10%.

Make new choice collective, not atomized

Pooling demand let suppliers see a meaningful market just months after retail choice opened.

Billing options kept different buyer preferences inside one competition instead of splitting the market.

Quality evaluation kept the auction from becoming a lowest-price race with poor service.

The framework made switching administratively easy for public bodies that would not run their own tender.

Deregulation creates value only when buyers can turn choice into bargaining power; aggregation can make a thin new market competitive.

Customers that joined the competition received rates for two years with an option to extend for one more. CCS used the result as a model for further utility aggregations, emphasizing savings, consolidated billing, account management and simpler procurement.