GE GE40S**DAT01

The registry lists a UEF, the ratio of hot water delivered to energy used, of 0.93 for this model. This site combines that UEF with the daily hot-water draw of the medium draw pattern to reach 3,493 kWh a year. The registry does not publish that annual figure itself; it is a calculation by this site, built from DOE CCD data retrieved on 2026-09-19. The model uses 38 kWh less than the class median of 3,531 kWh. That gives it a rank of 153rd lowest energy use of 426, in the second-lowest quarter of its class. The difference from the median applies only at the medium draw pattern and only to electric tank models.

This figure describes a household whose hot-water use matches the medium draw pattern. The rated volume is 40 gallons. The first hour rating, the gallons of hot water available in the first hour from a full tank, is 63 gallons. A household that needs more hot water in its first hour than 63 gallons, or that draws well above the medium pattern, is not described by the 3,493 kWh figure. This page has no measurements from actual homes, so energy use at other draw patterns is not available here. To narrow options by fuel, space and size, use the selector by fuel, space and size.

The running cost is not written in this text because it depends on your own utility electricity tariff. The calculation is 3,493 kWh multiplied by your price per kilowatt-hour, at the medium draw pattern. Enter your ZIP in the cost calculator for your own ZIP to see the result. The method behind the annual cost explains how the figure is derived. To compare GE40S**DAT01 with another unit of the same class, you can find a same-class replacement by model number. The modeled installed-cost range appears in its own block on this page, with its source and date, and it is a modeled range, not a quote.