Energy Saving Potential and Environmental Impacts for Household Electric Water Heaters

In this paper energy saving potential and environmental impacts for household electric water heaters are studied. at the first step the basic parameters and measurement method based on standard IEC379 are chosen. Then twelve domestic electric water heaters are tested. By using the regression method the best curve are fitted and by shifting the base curve the region between upper and lower limits are divided into seven regions for various capacities. Energy saving potential are calculated by comparing to insulated electric water heaters. Economical appraisal from consumer and national economy point of view are studied.