Portable AC electricity cost

Energy by operating phase

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Named portable-AC references

The default GE APHS07WWF supplies a direct 1,000 W cooling-input rating. Its product page and EnergyGuide agree on 7,000 BTU capacity; the product identifies this as DOE SACC. GE says this model is no longer manufactured, so it is an installed-equipment example. Loading a reference resets the schedule and keeps the selected state benchmark.

GE's EnergyGuide labels 6.9 as CEER; its product specification labels the same number EER. We retain those source labels and use neither to derive watts. The label's $97 yearly cost assumes 13 cents/kWh and eight hours per day over three months. It does not use the editable schedule above.

GE lists the unit as single-hose and dual-hose compatible. Its APHS07/APHS08 manual, pages 10–11, shows the supplied exhaust-hose assembly. We have not applied a second-hose kit rating or assumed that a different installation keeps the same tested capacity.

The alternative TCL T08PC9SB supplies a direct 1,060 W electrical-input rating. Its capacity records conflict: product specifications list SACC 7,950 BTU/h while its linked EnergyGuide prints 8,350 BTUs. Its advertised ASHRAE figure is 12,000 BTU/h. The capacity conflict remains unresolved; neither figure is used to infer watts or equal cooling. Its manual illustrates one exhaust hose.

SACC means seasonally adjusted cooling capacity. Advertised ASHRAE BTU/h and SACC use different test bases; neither is the electrical input. A single-hose unit exhausts indoor air, while a dual-hose design has a separate condenser-air intake path. Installation, replacement air and duct heat affect the cooling delivered to a room; this calculator adds no invented hose-efficiency multiplier.

CEER and annual EnergyGuide energy describe test conditions. The calculation here uses entered electrical power and time, or measured daily kWh. For a variable-speed compressor, a representative measured kWh reading captures modulation better than an assumed on/off percentage.

Schedule energy is whole-unit cooling watts × cooling hours × compressor on-share, plus fan watts during the remaining cooling hours and extra fan-only hours, plus standby watts during the rest of the day. Divide watt-hours by 1,000. Fan-only mode requires cooling hours of zero and an entered fan power and runtime.

Portable AC, window AC or a fan?

Compare the same room, weather, occupancy, target temperature and comfort period. Measure each AC's energy while it achieves that task. Equal BTU labels, equal runtime or the two starting examples do not establish equal cooling. A fan moves air and can improve comfort, but does not remove room heat. Electricity cost here excludes equipment price and installation.

Window AC tool · Portable AC tool · Fan electricity examples

Model sources checked September 27, 2026. State averages are benchmarks; avoided bill charges depend on your variable tariff.

Same starting example, different state rates

These benchmarks always use the original model and schedule, not your edited inputs above. Select a state in the form to calculate your scenario at its rate. The table's active month is 365/12 days; its annual cost includes May through September only.