Check the Place-Setting Capacity Before Comparing Dishwasher Efficiency Grades

What numbers decide a dishwasher's efficiency grade?

The Korea Energy Agency says it covers household electric dishwashers with a washing capacity of 20 place settings or fewer, and that it uses the measured energy consumption per wash cycle as the standard. The list columns are application number, company name, model name, washing capacity (place settings), energy consumption per wash cycle (Wh/cycle), efficiency grade, completion date, and report confirmation.

On October 12, 2026, the agency's dishwasher list had 164 entries. The completion date is explained as the day the report was finished and the report confirmation was first issued.

How do you compare grade numbers when the washing capacity differs?

Read them separately by capacity. Even in the same list, the Wh/cycle of the grade 1 rows differs by capacity. Below are the ranges I got by grouping the rows of the October 12, 2026 list by capacity.

The 42 entries for 12 place settings span grades 1 to 4, and the 28 entries for 6 place settings span grades 1 to 5. Within the same capacity, rows with larger Wh/cycle had lower grades. However, the cutoffs or formula that divide the grades were not on the agency pages I checked, so don't use this table as a standards table.

Can the same 12 place settings really spread out to grade 4?

Yes, in the list. Just looking at the two LG 12-setting models, the DUE2BGE is grade 1 at 607.2Wh and the DUB61TBE is grade 4 at 966.6Wh. The two 14-setting models are both grade 1, but the values differ, with the DUE5BGE at 641.9Wh and the DUE6BGLE at 613Wh.

I checked the agency list on October 12, 2026. The application numbers are 292250007 for the DUE2BGE, 292250026 for the DUB61TBE, 292250005 for the DUE5BGE, and 292250004 for the DUE6BGLE.

Can you estimate monthly use from Wh per cycle?

Only as an arithmetic example. If you assume one run a day for 30 days, the DUE2BGE's 607.2Wh is 0.6072kWh, so 30 runs come to about 18.2kWh. The DUB61TBE's 966.6Wh is 0.9666kWh, so 30 runs come to about 29.0kWh. It is only multiplication after converting 1,000Wh to 1kWh.

The difference between the two models under this assumption is about 10.8kWh. Because it is a calculation built on an assumption, it is not actual use or an electric bill based on real wash counts, chosen courses, or water supply temperature. I did not apply a rate per kWh in this article.

How does the same model look on the manufacturer's page?

The official LG page lists capacity, energy efficiency grade, and power consumption (W) separately. Power consumption was 1,600W for all five models, and the size was the same at 598×815×567mm.

I checked the LG pages on October 12, 2026. For the first four models, the grade on the LG page matches the agency list. The last row, the DUE2BG, differs. In the agency list, the DUE2BG is 12 place settings, 607.2Wh, grade 1 (completion date 2025-01-02, application number 292240015), but the LG page says "ungraded product" and shows the release month as 2024-03. The reason can't be known from the two sources, so read it only as an example of why you have to match the model name through to the last letter, since it differs from the DUE2BGE only by the final E.

Is 1,600W power consumption the energy used in one wash?

No. 1,600W is power consumption written in W, while Wh/cycle in the agency list is the energy used during one wash. The LG page doesn't explain what state the 1,600W value describes, so this article doesn't swap the two numbers for each other either.

When comparing, look at the Wh/cycle and efficiency grade in the agency list first, and set aside the W on the LG page separately as a reference number for checking the power capacity you will install.

Will it fit in your space?

All five models are 598×815×567mm and are marked as built-in only. So whether it's 12 or 14 place settings, outer size doesn't separate them, and the weight differs from 38 to 45kg. The 14-setting DUE6BGLE was the heaviest at 45kg.

Because it is built-in only, whether your space is a cabinet that fits the standard and whether water supply and drainage connect are things to check separately in the manufacturer's installation guide and the sales page. The material in this article can't tell you whether it can be installed in any individual kitchen.

How do you match the final letter of the model name and the completion date on the sales page?

Copy the model name on the sales page exactly through the final letter and look it up separately in the agency list and on the LG page. The agency's list notice says grade and efficiency can differ by manufacturing date because of measurement method changes or tightened standards, and that a value lower than the reported one may be put on the actual label (Article 15, Paragraph 1 of the Operating Rules for Energy Efficiency Management Equipment).

1. Write down the model name and washing capacity (place settings) on the sales page, down to the final letter.
2. In the agency's dishwasher list, check the Wh/cycle, efficiency grade, and completion date of the row with the same model name.
3. Separately write down the grade, power consumption (W), size, and release month from the official LG page.
4. Check that the label grade and manufacturing date of the product you receive match the list row.