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Standby Power Audit

Audit vampire loads across devices.

Inputs

Inputs and assumptions

Nameplate watts for Standby Power Audit.

How many of this device you run.

Hours per day

Fridges run 7; laundry may run 2-3.

Compressors and thermostats cycle; a fridge averages ~40%.

Rate

Result

Cost per year
$14.89
Energy per year
88 kWh
Share of average US home
0.8%
Cost per running hour
$0.002
Cost per day
$0.04
Energy per day
0.2 kWh
Cost per month
$1.22
Screening tool. Verify your utility tariff and equipment specs before deciding.

Frequently asked questions

How do I audit standby loads?

List always-on devices, enter each standby watts and 24 hours, and rank by annual cost.

What standby watts are typical?

TVs 0.5 to 3W, consoles 10 to 15W sleeping, cable boxes 15 to 25W, chargers under 1W.

What should I fix first?

Anything over 3W standby running 24/7. Smart strips pay back fastest on entertainment centers.

How do I measure standby?

A $20 plug meter reads standby watts directly. Utility smart-meter portals show whole-home idle overnight.

Related calculators

Guides

01 Standby Power: Find and Kill Vampire Loads 02 Which Appliances Cost the Most to Run? 2026 Cost Guide

Workspace

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