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Electricity is not the thing to worry about. Bandwidth might be.
A Nest camera uses roughly as much power as a phone charger left plugged in, but
with continuous cloud recording it can move more data in a month than a household
streaming habit.
Power: under 34 kWh a year
Google's own product environmental reporting puts a Nest camera at
no more than 34 kWh per year. That is about 0.09 kWh a day.
The draw changes with what the camera is doing:
- Idle — around 0.2 W. The camera is connected and watching,
but not sending video anywhere. - Streaming — around 1.3 W, when it is sending video to the
app or to the cloud. - Night vision — add roughly 1.2 W while the infrared LEDs are
lit, which is why a camera costs slightly more to run in winter than in summer.
Even under sustained load these cameras stay in single-digit watts. To put
34 kWh a year in context: an average US household uses in the region of 900 kWh
a month. One camera is therefore a fraction of a percent of a typical
bill — a few dollars a year at normal residential rates, and you would struggle
to see it as a change on a statement.
If you are running six or eight cameras the arithmetic still does not get
interesting. Eight of them is under 300 kWh a year, roughly one efficient
refrigerator.
Bandwidth: this is the number that matters
Here the answer splits in two, and which half applies to you depends on
whether you pay for continuous recording.
Without continuous recording
A modern wired or battery Nest Cam only sends video when something happens:
when it detects an event worth clipping, or when you open the live view. The rest
of the time it is sending almost nothing. Monthly usage for a camera in a quiet
spot lands in single-digit or low tens of gigabytes, and most home connections
will not notice it.
With Nest Aware continuous recording
Continuous recording means exactly that: the camera uploads a video stream all
day, every day. At 1080p the upload sits somewhere between
800 and 2000 Kbps depending on the quality setting and how much
is moving in frame.
Run that around the clock and a single camera can account for
150 GB to 300 GB of upload per month. Two cameras on continuous
recording will, for most households, be the largest single consumer of upstream
bandwidth in the building.
Two consequences worth planning for:
- If your connection has a data cap, continuous recording is
the setting to look at first. Dropping the video quality, or switching that
camera to event-based recording, changes the monthly figure by an order of
magnitude. - Upload speed is the constraint, not download. Most home
connections are asymmetric and give you a fraction of the download speed for
uploads. A 500 Mbps connection with 20 Mbps up will handle a couple of cameras
comfortably and start to struggle beyond that, regardless of what the download
figure says.
2.4 GHz or 5 GHz
Use 5 GHz where the signal is strong enough, because the band is usually less
congested and the camera will hold a higher bitrate without stuttering. Use
2.4 GHz where the camera is far from the router or separated by more than a wall
or two — it carries further, and a stable connection at lower quality beats an
intermittent one at higher.
A camera that keeps dropping out is almost always a signal problem rather than
a bandwidth one, and moving it to 2.4 GHz is the first thing to try.
That band choice is not only a camera question. Most smart home hardware is 2.4 GHz only, and it is the main thing to check before replacing a router — see what to look for in a router for a smart home.
The short version
- Power: negligible. Under 34 kWh a year, a few dollars.
- Bandwidth without continuous recording: negligible for most connections.
- Bandwidth with continuous recording: 150–300 GB a month per camera, and the
thing to check before you subscribe.
If you would rather check any of this on your own hardware than take our word for it, a plug-in meter reads the draw directly and costs less than a month of most camera subscriptions. → Smart plugs with energy monitoring
Sources
Bandwidth and speed requirements are as published by Google in its
Nest
camera bandwidth guidance. The annual energy figure comes from Google's
product environmental reporting. Per-state power draws vary slightly between
camera generations, so treat them as the right order of magnitude rather than a
specification for one model.
Sources last checked 14 September 2026.
If you'd like to read other articles similar to How Much Power and Bandwidth a Nest Camera Actually Uses You can visit the category Energy Monitoring.