MELs: What Have We Found through End-use Metering?

摘要

Power Smart’s Residential End-Use Metering Program (REUMP) meters all thernappliances in 12 volunteer households. The hourly aggregations of data provide insight into arnsmall sample’s average use of electricity by end-use and groups of end-uses, as well as thernability to learn from the variations between households. Hourly data shows the impact of thernappliance, and the behaviors of timing of use, and the one-minute data shows how the appliancesrnwork. For MELs such as televisions, we look at both the usage of individual units, as well as thernmore complex entertainment systems as a whole.rnIn this paper we discuss methodology issues of this approach to end-use metering, andrndiscuss our preliminary work with; power factor by end-use, standby loads by end-use. Findingsrnfor MELs are highlighted where appropriate. Duration curves of the hourly energy use, for arnyear, clearly show the active and standby modes for each appliance, and the number of hours inrneach mode. The 12 household pilot provides some information on the variation in usage thatrnone might expect. Power factor, by household and by end-use were investigated, with arndiscussion on leading and lagging kvars. Detailed energy use data, by appliance or group of enduses,rnand by several households can inform conservation program and regulation/standardsrnplanning.