Matchboxmatchbox
← Problems

Tools to find energy-hungry appliances

The problem, in plain words: “My electricity bills keep climbing and I don't know which appliances are driving the cost.”

PowerCalc fits best.

You want to find which household appliances are driving up your electricity bills so you can reduce consumption.

Updated August 2026.

What fits

PowerCalcstrong · 90

PowerCalc's primary purpose is estimating energy consumption for individual devices inside Home Assistant, producing virtual power and cost sensors so you can see per-device and per-room usage without buying a smart plug for every appliance.

Best for: Homeowners or renters who run Home Assistant and want per-appliance estimates without installing hardware on every device.

Caveat: Requires a running Home Assistant installation and some setup to add the custom component.

Partly fits

HomeBoostpartial · 58

Helps homeowners find energy savings and spot common home issues, so it can surface opportunities to lower bills but is not focused on measuring per-appliance consumption.

Won’t cover: Focuses on finding general energy savings and home issues rather than providing per-appliance measurement or estimates.

Home Energy Decisionspartial · 53

Provides calculators and upgrade planning for major home systems (insulation, HVAC, water heaters) which can reduce bills but does not identify individual small-appliance consumption.

Won’t cover: Oriented toward home upgrade and retrofit decisions rather than appliance-level usage tracking.

Ecoenergycalcpartial · 50

Offers electric-bill and cost calculators that help estimate overall household energy costs, but it doesn't provide per-appliance monitoring or automated device-level breakdowns.

Won’t cover: Gives whole-home cost and savings estimates rather than per-appliance measurements or ongoing device-level tracking.

Comfort Heating & Coolingpartial · 45

Smart thermostat apps focus on reducing HVAC operating costs and improving temperature control, which can lower bills but do not identify usage from unrelated appliances like dryers, fridges, or entertainment gear.

Won’t cover: Targets HVAC energy reduction rather than measuring or estimating individual appliance consumption across the home.

Questions

What's the best tool to find energy-hungry appliances?

PowerCalc is the strongest match — PowerCalc's primary purpose is estimating energy consumption for individual devices inside Home Assistant, producing virtual power and cost sensors so you can see per-device and per-room usage without buying a smart plug for every appliance. One caveat: requires a running Home Assistant installation and some setup to add the custom component.

Is there a tool that fully solves this?

1 product matches this closely.

What won't these tools cover?

Focuses on finding general energy savings and home issues rather than providing per-appliance measurement or estimates. · Oriented toward home upgrade and retrofit decisions rather than appliance-level usage tracking. · Gives whole-home cost and savings estimates rather than per-appliance measurements or ongoing device-level tracking. · Targets HVAC energy reduction rather than measuring or estimating individual appliance consumption across the home.

Not quite your version of it?

Describe the problem in your own words and the matcher will read it fresh — including products too new to be anywhere else.

Try your own problem

Matched by Matchbox. Nothing here is sponsored and payment never affects ranking. Products link to their listings; some are auto-extracted and not yet maker-verified.