Builder-Installed Electrical Loads in New Homes

Builder-Installed Electrical Loads in New Homes

TitleBuilder-Installed Electrical Loads in New Homes
Publication TypeConference Proceedings
Year of Publication2015
AuthorsAlan K Meier, Quentin Aillot
Conference NameEnergy Efficient Domestic Appliances and Lighting
Date Published08/2015
Conference LocationLuzern, Switzerland
Abstract

The “builder-installed” electrical products are the appliances and components installed by the builderduring construction and prior to occupancy. Some of these components are required by safety codes,such as smoke detectors, others are needed to support the communications infrastructure, and stillothers provide features that future occupants will find useful, such as remotely controlled garage dooropeners. We compiled a list of over 50 builder-installed devices that are likely to have continuouspower consumption, and measurements of power consumption for a smaller group. Individualcomponents consume very little power but a typical North American home can easily have 80 W ofcontinuous power – corresponding to over 650 kWh/year – devoted to these components. The typesof products and power consumption may be different in Europe or Japan. Techniques to reduce thisenergy use include: selection of lowest-power solutions when a range of power consumptions areavailable, more efficient circuitry and power management, a separate DC circuit to serve DC-poweredappliances, and use of energy-scavenging sensors and controls in place of grid-poweredcomponents. A protocol to define and measure builder-installed loads, along with a recommendedceiling, might also stimulate savings.