随着需求的增加，供水设施资本项目的融资变得越来越困难 提供支持增长的基础设施，以满足日益严格的环境要求 法规，以及更换老化设施的竞争压力，以最大限度地降低利率 增加。无法满足首都基础设施要求的市政供水设施 没有大幅提高利率的需求往往面临着大幅降低利率的压力 成本或考虑私有化。一种有效的方法，可以最大限度地减少 资本改善计划旨在制定综合资本和财务规划 过程该过程应包括财务模型，以帮助确定 在保持财务可行性的同时，最大限度地降低利率增长的最佳融资计划 水系统。在综合资本和财务规划中使用的财务规划模型 过程，可以是一个有价值的工具，以确定未来监管的财务影响 要求或推迟、加速或改变资本项目的规模。 然而，这种类型的敏感性分析需要开发大量的 关于当前和预计收入和费用的信息量。一些例子 数据要求包括未来资本需求、运营预测和 维护成本、当前和未来的偿债要求，以及 不同的收入来源。本文将描述金融机构的好处 水基础设施规划模型在综合资本和 财务规划过程。最后是过去五年中使用该过程的结果 为了满足亚利桑那州菲尼克斯市的基础设施需求，供水系统将 讨论。包括表格，如图所示。

The funding of capital projects for water utilities is becoming more difficult as the need to provide infrastructure to support growth, to meet increasingly stringent environmental regulations, and to replacing aging facilities competes with the pressure to minimize rate increases. Municipal water utilities that are unable to meet the capital infrastructure needs without substantial rate increases are often under pressure to significantly reduce costs or to consider privatization. An effective method to minimize the rate impact of a capital improvement program is to develop an integrated capital and financial planning process. This process should include financial models to assist in determining the optimal funding plans that minimize rate increases while maintaining a financially viable water system. A financial planning model, when used in an integrated capital and financial planning process, can be a valuable tool to determine the financial impact of future regulatory requirements or deferring, accelerating or changing the size of a capital project. However, this type of sensitivity analysis requires the development of considerable amounts of information on current and projected revenues and expenses. Some examples of the data requirements are future capital needs, projections of operation and maintenance costs, current and future debt service requirements, and forecasts of the different sources of revenue available. This paper will describe the benefits of a financial model to water infrastructure planning when used within an integrated capital and financial planning process. Finally, the results of using this process over the last five years to meet the infrastructure needs for the City of Phoenix, Arizona, water system will be discussed. Includes tables, figure.