UKWIR/EA Forecasting Water Demand Components - Best Practice Manual
ISBN: 1 84057 040 7
This project reviewed, tested and documented best practice methodologies for forecasting water demand, culminating in the production of a best practice manual. The findings build upon the agreed methodology and definition of components of water demand, with the aim of providing methodologies that are robust and acceptable to the industry and regulators. Forecasts based on a 'rule of thumb' rate of increase are not adequate, nor will they be accepted by the regulator. Among the recommendations are that forecasts of household demand should be determined by identifying the various uses of water, that different groups within measured households should be analysed separately, and that non-household demands are forecast using an explicit link to economic prospects. The study also suggests the need for a comprehensive survey of appliance volumes for use throughout the industry, and that the industry may benefit from agreeing a number of common scenarios.
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