New PDF release: Guide to Preparing Urban Water Use Efficiency Plans issue

By United Nations

ISBN-10: 9211201756

ISBN-13: 9789211201758

This ebook presents directions on getting ready plans for the effective use of water in residential, municipal and advertisement sectors. It comprises very important info for constructing water-use potency plans, comparing their price effectiveness, assessing present and destiny water calls for, and financing water-use potency programmes. The advisor is a precious source for selection makers focused on the making plans, funding and administration of water offer and the sanitation area.

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Extra info for Guide to Preparing Urban Water Use Efficiency Plans issue 83

Sample text

W. Chestnutt, published in 2002. Table 10 provides a summary of devices. Demand reductions and costs shown need to be checked against local water-use patterns and costs; 34 Table 10. 8 litres 750 100-400 20+ 70g, h Dual flush toilets 6/3 litres 300-400 200-400 20+ 100g a Where applicable. b Demand reduction is given in units litre per connection per day (litre/conn/day). 5 persons per connection. c Based on comparison with 15 litre/min shower. d Based on comparison with 13-litre flush. e Based on 3-4 cartridges/year (at US$ 50/cartridge).

An overview of general recommendations on multi-tiered types of rates that do offer customers incentives is presented below. It is difficult to predict changes in water use due to changes in price. Definitions and methods for assessing the response to rate changes, called price elasticity or inelasticity, are covered in numerous reference texts and need to be taken into consideration when deciding whether and how to implement water rate changes. It is critical for planners to have an understanding of price elasticity concepts, since they may greatly influence the revenue generated and thus the financial situation of the utility if water efficient rate structures are not applied correctly.

The rebate maximum is US$ 500 for residential customers and US$ 750 for commercial customers. Other conservation programmes funded by the surcharge include public education through workshops and demonstration gardens. 32 (a) (b) (e) or changing the balance between fixed and volumetric derived revenue. Consequently, in using a two-tier rate structure, outside water use cannot be effectively addressed with rates, even with differentials for dry/wet-season use patterns. It is more effective to engage in efficiency programmes related to landscape design, irrigation methods and practices, and incentives for reductions in use, rather than to rely only on water pricing to obtain water-use efficiency improvements; The shorter the billing cycle, the more frequent the reminder to customers of the cost of water.

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Guide to Preparing Urban Water Use Efficiency Plans issue 83 by United Nations


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