阿拉巴马州太阳能中心的太阳能测试设施中安装了八台单户太阳能家用热水器和一台常规电热水器，目的是在相同的运行和气候条件下获得比较性能和运行数据。该系统采用了田纳西河谷常见的三种防冻措施（例如，机油、防冻剂和排水系统）。其中六个系统是商用的，是在美国寒冷气候下广泛销售的典型系统。另外两个系统是由TVA为“孟菲斯1000”示范项目开发的。这六个商业系统已经进行了大约1年半的测试和评估。 最近公布了这些系统的测试结果。这两个“孟菲斯1000”系统正在根据与TVA的合同进行测试，本文是迄今为止首次公开披露在这些系统上收集的有限数据。该系统并排安装在典型的住宅式屋顶结构上，并配备总计Btu和电度表，以提供能量流的总计值。测量水平面和倾斜面内的总辐射，以便计算系统效率。本文将详细介绍设施、系统和仪器。将审查系统的运行经验，并提供性能数据。 引文:俄亥俄州辛辛那提ASHRAE学报第87卷第2部分研讨会

Eight single-family-sized solar domestic water heaters and a conventional electric water heater have been installed in the Alabama Solar Energy Center's Solar Test Facility for the purpose of acquiring comparative performance and operational data under identical operational and climatic conditions. The systems employ three examples of freeze protection typically encountered in the Tennessee Valley, (e.g., oil, antifreeze, and drainback).Six of the systems are commercially available and are typical of those widely merchandized within the colder climates of the U,S. The other two systems were developed by TVA for the "Memphis 1000" demonstration program. The six commercial systems have been under test and evaluation for approximately 1 1/2 yrs. Testing results of these systems have been recently published. The two "Memphis 1000" systems are being tested under contract to TVA and this paper is the first public disclosure of the limited amount of data collected on these systems thus far.The systems are installed side-by-side on a typical residential-type roof structure and are instrumented with totalizing Btu and Kilowatt hour meters to provide totalized values of energy flows. Total radiation in the horizontal and- tilted planes are measured to allow computation of system efficiencies.In this paper, the details of the facility, systems and instrumentation will be described. Operational experiences with the systems will be reviewed and perforamance data will be presented.