任何新技术或保护计划的挑战都是开发 一种严谨、科学的方法来估算节约和成本。这篇论文 回顾了制水的过程、方法和实际应用 项目或法规处于早期阶段时的节约和成本估算 关于发展。 本文的重点是索诺玛县水务局最近的一个项目 加利福尼亚州的一家机构，该机构参与估算 不同类型的法规和技术，包括景观限制、蒸散（ET）控制器、， 雨水传感器、灌溉仪表，以及新单户住宅的新开发标准。 本文的目标是提供一个实际应用，使用最终使用模型来帮助评估 法规和计划的成本效益。 成本最低的规划决策支持 在过去八年中，超过150个社区使用了系统或DSS模型作为工具 年。本文的重点不是模型本身，而是模型的应用 开发关键输入、假设和参数的方法，以便最终使用 使用模型或其他方法生成节水计算。包括表格，如图所示。

The challenge with any new technology or conservation program is to develop a rigorous and scientific way to estimate savings and costs. This paper reviews the process, methodology and practical applications of generating water savings and cost estimates when a program or regulation is in the early stages of development. The focus of this paper is on a recent project for Sonoma County Water Agency in California that involved estimating savings and benefits from different types of regulations and technologies including landscape restrictions, evapotranspiration (ET) controllers, rain sensors, irrigation meters, and new development standards for new single family homes. The goal of this paper is to provide a practical application using end use model to help evaluate the cost effectiveness of regulations and programs. The Least Cost Planning Decision Support System, or DSS model has been used as a tool for over 150 communities over the past eight years. This paper does not focus on the model itself, but rather the application of the methodology to develop key inputs, assumptions, and parameters that can then be used in an end use model or other ways to generate water savings calculations. Includes tables, figure.