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PARTLY

As of 13 August 2026, AI can only partly find which appliances use the most energy in your home.

This still needs a person who signs their name to it.

Can you do it?

5 minutesto a draft.

30 minutesto something you’d act on.

Cost, all in£0

Skill neededchat-fluent

Who has to check ityou

What the alternative costsNo priced alternative is listed in the available tool data.

If this goes wrong: you rank an appliance incorrectly and spend effort changing the wrong usage pattern, but you can correct the result with better measurements.

What to actually do

  1. Hand it to a person

    The route this page recommends

    A person who owns the outcome does this end to end, worth it when the failure is dear.

  2. Do it yourself

    Second choice

    A chat interface, chat-fluent skill, and roughly 30 minutes until you can act on the result.

    How to actually do it

    1. Open your latest electricity bill or smart-meter display and note the relevant meter readings and billing period without pasting account numbers or other private details.
    2. Walk through each room and make a list of the appliances you want to compare, including their wattage from the rating plate or manual where available.
    3. Record typical use for each appliance, such as hours, cycles or standby periods, and mark anything that is only a rough estimate.
    4. Use a smart plug or plug-in energy monitor on appliances that cycle, heat or have uncertain consumption, and record readings over representative use.
    5. Paste the appliance list, readings and usage notes into the supplied prompt and ask the chatbot to produce the ranked table.
    6. Compare each calculation with the original appliance labels and meter or smart-plug readings, then measure any appliance driving an unexpected result before changing your routine.

    Prompt

    Help me identify which appliances in my home use the most electricity. Use only the information I provide and do not invent wattage, usage time, tariff details or meter readings. Separate measured figures from estimates. For each appliance, calculate energy use from the supplied data, show the calculation in plain English, and rank the appliances from highest to lowest use. Flag any result that depends on an assumption, explain what measurement would improve it, and do not claim to have accessed my smart meter or any device. Here is my data: [paste appliance names, wattage or measured energy readings, typical hours or cycles of use, and any meter or smart-plug readings].

    Open it prefilled in ChatGPT or Claude, or copy it into Gemini, which takes no prefill link.

  3. Use a tool built for this

    The distant third

What it gets wrong

  • AI cannot see your appliances, smart meter or actual usage unless you provide the readings.
  • It cannot infer reliable energy use from an appliance name alone because models and usage patterns differ.
  • It cannot replace a smart plug or energy monitor when standby use, cycling or heating behaviour matters.
  • It can calculate a precise-looking ranking from rough inputs, so the table may conceal uncertainty unless you label every estimate.
  • It cannot tell whether a change will be worthwhile without your current usage pattern and electricity tariff.

What caps this at PARTLY: real time truth, verification cost and context depth.

How we scored this

Five axes, each scored nought to two by hand: ten means AI carries the task cleanly, and the thresholds that turn a total into YES, PARTLY or NO are published in the methodology. Each axis name links to its definition.

AxisScore (0–2)
Output2
Inputs1
Verification1
Liability2
Effort delta1
Total7 / 10

The methodology and its thresholds are published in full.

FAQ

Can AI tell me which appliances use the most electricity?
Partly. It can rank appliances from wattage, usage and meter data that you supply, but it cannot inspect your home or measure live consumption by itself. Use measured readings when the ranking matters.
How do I use AI to work out which appliance costs the most to run?
Give it each appliance's measured energy use, typical usage and your current electricity tariff, then ask it to show the calculation and separate estimates from readings. Check the result against your bill or meter data before changing how you use the appliance.
Can ChatGPT read my smart meter and rank my appliances?
Not directly through an ordinary chat. You need to copy in readings from your smart-meter display, energy app or plug-in monitor, and the ranking will only be as good as the readings and appliance matching.
Is it accurate to use AI to calculate appliance energy use?
It is accurate arithmetic when the input measurements are accurate. It is not an accurate measurement system, so estimates based only on appliance labels or guessed usage can produce the wrong ranking.

Nearby answers

All Energy & bills rulings

Assessed by gpt-5.6-luna (gpt-5.6-luna) on 2026-08-13, second-checked by an independent model. Wrong somewhere? Email [email protected] and it gets re-checked.

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