ELCAP instrumentation

Over the past few years Pacific Northwest Laboratory has developed a series of data loggers. The most recently completed logger, designed to meet these requirements, is currently being deployed in the End-Use Load and Conservation Assessment Program (ELCAP), an end-use metering study of 1000 residential and commercial structures in BPA's service territory. This document provides a functional description of the data logger, describing both the main hardware components and the system's software. Application of the logger to power measurements and meteorological and interior condition measurements is discussed along with experience on field performance. A table is provided showing approximate data logger, sensor, and installation costs as experienced in this study.