Consumer and Vehicles

ENERGY STAR room air conditioners: typical energy use

570 room air conditioner listings currently carry the ENERGY STAR certification — window and through-the-wall room air conditioners certified under ENERGY STAR. Here is the typical range and the most efficient model on record, straight from the U.S. EPA's own product-finder dataset.

Certified models

570

Catalog average

591 kWh

Most efficient model

BLACK+DECKER BDM05C

260 kWh

room air conditioners: most efficient, average and least efficient certified modelThree bars comparing the most efficient, the catalog average and the least efficient ENERGY STAR-certified room air conditioner, out of 570 listings.Most efficient260 kWhCatalog average591 kWhLeast efficient2,096 kWh
Source: data.energystar.gov (dataset 5xn2-dv4h), collected 2026-10-09. Own chart.

How to read this page

Como ler este número

What the number measures

This is the annual energy use reported under the U.S. DOE test procedure for room air conditioners — a standardized lab test, not a measurement from a real home.

De onde vem o dado

data.energystar.gov, collected 2026-10-09

Figures come straight from the U.S. EPA's own Socrata dataset (dataset 5xn2-dv4h), under the EPA Data License. Last model added to this category: 2026-09-30.

Cuidado

ENERGY STAR only covers certified models

This list only includes room air conditioner models the manufacturer submitted for certification — it is not every room air conditioner sold in the U.S., and a model being absent does not mean it is inefficient. Figures are per year, under lab conditions; your own bill depends on size, settings and how much you use it.

O que fazer com isso

Check a specific model yourself

Open the raw dataset or search the brand and model number directly on the manufacturer's own EnergyGuide label before buying.

How big is the certified room air conditioner market?

As of 2026-09-30, 570 room air conditioner listings carry the ENERGY STAR certification — window and through-the-wall room air conditioners certified under ENERGY STAR. It is a smaller, more specialized list than categories like refrigerators or dishwashers, which makes individual model specs more worth comparing one by one.

What is a typical room air conditioner annual energy use?

Certified room air conditioners range from 260 kWh to 2,096 kWh a year — more than a 8x spread, mostly driven by size and features (capacity, ice makers, smart controls, variable-speed compressors). The average across the whole certified list is 591 kWh a year, but that number means little without matching it to the size of unit you actually need.

Which certified room air conditioner uses the least energy?

The most efficient model in the dataset is the BLACK+DECKER BDM05C, at 260 kWh a year — close to the catalog minimum of 260 kWh. "Most efficient" here is a single data point, not a buying recommendation: capacity, features and price matter too.

Glossário: os termos desta página

ENERGY STAR

ENERGY STAR is a U.S. Environmental Protection Agency (EPA) program that certifies appliance models meeting a set energy-efficiency threshold. Certification is voluntary for manufacturers and does not cover every model on the market.

Fonte: ENERGY STAR Product Finder — U.S. EPA.

Ver no glossário completo

Energy and consumer glossary — todos os 9 termos.

Source: data.energystar.gov (dataset 5xn2-dv4h), U.S. Environmental Protection Agency, under the EPA Data License. Collected 2026-10-09. "ENERGY STAR" is used here as the plain-text name of the EPA program, not as a logo or endorsement of any brand.