STATE ENL-50 1**

This site computed the 3,531 kWh figure. The registry does not list it. The calculation combines the registry's UEF, the ratio of hot water delivered to energy used, with the DOE test's daily hot-water draw for the medium pattern. The UEF for this model is 0.92. The medium pattern represents the typical household that DOE assigns to it. The source is the DOE Compliance Certification Database (CCD), retrieved 2026-09-19. The figure holds only at the test's daily draw. The data does not give this model's energy use at a heavier or lighter draw, so that value is not available here. The steps from UEF to annual energy are set out on the page explaining how this site calculates annual energy and cost.

This unit is compared with the 426 models registered as an electric tank at the medium draw pattern. It ranks 213th lowest in energy use among them. That places it in the second-lowest quarter of its class, and its annual use equals the median. Its first hour rating, the gallons of hot water available in the first hour from a full tank, is 51 gallons. Its rated volume is 48 gallons. These ratings describe a household whose daily demand matches the medium pattern. They do not describe a household with heavier daily demand, and energy data for that case is not available. To check other units in the same class, use the same-class replacement search by model number.

The running cost is not written in this text. The cost of 3,531 kWh of electricity a year depends on the electricity tariff of your own utility. For that reason, the page calculates it from your ZIP rather than from a single national rate. Enter your ZIP in the water heater cost calculator for your own ZIP to see this model's cost at the medium draw pattern. The installed price range appears in its own block, with its source and date. It is a modeled installed-cost range, not a quote. Neither figure changes the class position described above, which rests on energy use alone.