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Future estimation of unmeasured household consumption

Reference: 17/WR/01/16
ISBN: 1 84057 830 0
Published Date: 13/07/2017

A robust estimate of the unmeasured household consumption is an essential component of Water Resource Management Plans, Business Plans and annual reporting.  As domestic revenue meter penetration increases, unmeasured household monitors are becoming more difficult to maintain.  The report’s objective was to identify suitable methods for the estimation of unmeasured consumption in the future.

The current best practice guidance has been reviewed, and in its current form does not contain sufficient guidance to allow companies to adapt their existing monitors to the changing level of metered properties.

Seven potential options for estimating the unmeasured household consumption have been identified that are suitable for circumstances where meter penetration is increasing.  These are all described in the report, and allow companies to develop a reducing cost solution to estimate unmeasured household consumption.

The report contains several recommendations where existing evidence and guidance needs to be strengthened or explored further. 

Price: £200  

Integration of behavioural change into demand forecasting and water efficiency practices

Reference: 16/WR/01/15
ISBN: 1 84057 824 6
Published Date: 19/10/2016

This project investigated the way customers use water and the effect that behaviours, practices and habits have on demand for water and how understanding these behaviours could improve efforts to reduce household water use.

Project data was collected by surveying 1000 customers, then logging a sample of 62 properties at high resolution to determine their microcomponents of water use. These data enabled the development of a statistical model which explains about 50% of the variation in household demand. The work was supported by a literature review as well as consultation with water companies on their current approaches to gathering customer data.

Guidance is provided in a proposed framework for including behavioural factors in demand forecasts, which is consistent with the WRMP19 guidance on household consumption forecasts. The project also provides best practice guidance for customer surveys, giving companies a method for collecting consistent (and comparable) household data from customer surveys. Guidance for targeting water efficiency activities at different groups of customers based on sub-daily water use behaviour is also provided.

Price: £450  

Understanding Customer Behaviour for Water Demand Forecasting

Reference: 14/WR/01/14
ISBN: 1 84057 737 1
Published Date: 07/08/2014

Robust forecasts of water consumption are required to manage the future balance between supply and demand. Factors affecting customer behaviour in relation to water use and effects of initiatives to change it have not previously been well understood. This has limited the ability to forecast future consumption and target initiatives promoting water-efficient behaviours.

This project carried out a UK-wide survey of 1500 customers regarding attitudes and behaviours in relation to water. The results identified five customer typologies exhibiting different behaviours in relation to current water use and likely to respond differently to interventions encouraging water-efficient behaviour.

The typologies provide insight into types of behaviour and other factors affecting consumption. Survey results can be used to quantify impacts of behavioural influences across the typologies. The outputs can also assist with targeting water-efficiency interventions and understanding their likely impact. A framework has been provided for incorporating behavioural changes within demand forecasts.

Price: £550