A satellite isn't a passive extension cord
It's tempting to assume a mesh satellite barely sips power, since all it seems to do is repeat a signal. That's not what's inside one: every satellite is its own full wireless router, with its own radios and processor, doing real work coordinating the mesh and serving nearby devices, and it stays powered on continuously, exactly like the main router it's paired with. NETGEAR's own published power-consumption figures for its Orbi hardware confirm this directly rather than leave it as a guess: measured idling, its RBRE960 router draws 7.4 W and its matching RBSE960 satellite draws 7.3 W, within a rounding error of each other. That sits squarely inside the 7–10 W range this site's own router calculator already uses for a single unit, so treating each additional satellite as roughly another router's worth of continuous draw isn't an assumption stacked on top of the calculator's figures, it's the same figure applying twice, or three times, instead of once. It isn't a NETGEAR-specific quirk either: Tom's Guide's own wattage testing of a completely different mesh kit, Google's original Nest WiFi, measured its router at 3.7 W and its Point (Google's name for a satellite) at 4.3 W, the satellite actually drawing slightly more than the router it's paired with. Two unrelated manufacturers' own numbers agreeing that a satellite is not a low-power afterthought is a firmer base for the rule below than one brand's spec sheet on its own.
Single router vs a 3-node mesh system, by state
A single router, and a typical 3-node mesh kit (one router plus two satellites), each left on 24 hours a day, all year.
| State | Single router | 3-node mesh system | Extra for the mesh |
|---|---|---|---|
| New South Wales | $24.13 | $72.38 | $48.25 |
| Victoria | $22.19 | $66.57 | $44.38 |
| Queensland | $23.23 | $69.69 | $46.46 |
| South Australia | $28.37 | $85.11 | $56.74 |
| Western Australia | $25.02 | $75.06 | $50.04 |
| Tasmania | $21.52 | $64.56 | $43.04 |
| Australian Capital Territory | $20.40 | $61.21 | $40.80 |
| Northern Territory | $23.60 | $70.81 | $47.21 |
Each additional satellite assumed to draw the same 8.5 W this calculator uses for a single router, run continuously, 24 hours a day, every day of the year, the same basis as the calculator above. Your row is highlighted once you set your location.
What this means for a mesh upgrade
Over a decade, the mesh premium in the table above adds up to real money, several hundred dollars depending on the state, but it's modest next to what a mesh kit is actually bought to fix: a dead zone at the back of the house or a weak signal upstairs that a single router genuinely can't reach. Nobody should skip a mesh upgrade they need over an extra $40 to $57 a year in running cost. The number is worth knowing for a narrower decision, though: if only one room needs fixing, a single add-on satellite covers that job for roughly the running-cost premium of one extra unit, not the two-satellite 3-pack this table prices, which is worth checking against before buying the bigger kit “to be safe”.
Common questions
Do mesh WiFi satellites use much electricity?
Each one uses roughly the same amount as the router itself, since a satellite is a full wireless router in its own right, not a passive repeater. NETGEAR's own published figures for its Orbi hardware show a router and satellite drawing within a watt of each other when idling, and independent testing of a different brand, Google's original Nest WiFi kit, found the same pattern (3.7 W router, 4.3 W satellite), so it isn't limited to one manufacturer's hardware.
How much more does a mesh WiFi system cost to run than a single router?
About $41 to $57 a year more for a typical 3-node kit (one router plus two satellites), depending on your state, since each extra satellite adds roughly another router's worth of continuous 24-hour draw.
Is it cheaper to run one satellite instead of a full mesh kit?
Yes, proportionally. Every additional unit adds close to the same running cost, so if only one dead spot needs fixing, an extra single satellite costs a lot less to run than buying and powering a full 3-pack kit for the same one problem.
Is a mesh satellite the biggest hidden standby cost in a typical home?
No, that's still the router itself. Our standby power guide finds a single always-on router or modem already costs more a year than most of a house's other standby gadgets put together; a mesh kit's extra satellites each add roughly another router's worth of that same always-on cost on top.
Sources
Idle power draw for a router and a matching mesh satellite (7.4 W vs 7.3 W): NETGEAR Support, How much power does my Orbi WiFi System use?, fetched directly July 2026. Second-brand corroboration (3.7 W router, 4.3 W satellite): Tom's Guide, Nest WiFi review, wattage measurements for Google's original Nest WiFi router and Point. Single-router wattage range (7–10 W): the same comparison-site figure our router and modem running cost calculator above cites. Electricity rates: AER Default Market Offer and each state's regulated reference tariff, current for 2026–27. All fetched July 2026.