Do 3D Printers Use a Lot of Electricity?
TL;DR
No. A typical desktop FDM printer averages 70-150W while printing PLA — comparable to a laptop and monitor. An 8-hour print uses about 1 kWh, which costs roughly $0.15-0.20 at average US residential rates. High-temp materials with heated beds and chambers can double or triple that, and resin printers generally draw less than FDM. Even heavy hobby use rarely adds more than a few dollars a month to a power bill.
Key takeaways
- ✓Typical PLA printing: 70-150W average draw — about 0.1-0.15 kWh per hour
- ✓An 8-10 hour PLA print costs roughly $0.15-0.25 in electricity at average US rates
- ✓The heated bed is the biggest consumer — ABS/ASA at 90-100°C bed can push average draw to 200-300W
- ✓Resin (MSLA) printers usually draw less than FDM — a UV LED array and small heater, not a heated bed
- ✓Electricity is a minor cost next to filament — factor both with the print cost calculator
The short answer
3D printers are not power-hungry appliances. A typical consumer FDM printer averages 70-150W while printing PLA — in the same range as a gaming laptop. Peak draw is higher for the first few minutes while the bed and nozzle heat up (often 300-500W briefly), then the machine settles into a much lower cycling draw to hold temperature. Idle, most printers sip 5-15W.
What the watts actually go to
Three things consume nearly all the power: the heated bed (the largest share by far), the hotend, and the motors/electronics (a small, steady draw). That's why the material you print matters more than the printer you own: PLA's 50-60°C bed barely works the heater, while ABS or ASA at 90-100°C — especially in a heated chamber — keeps the bed working hard for the whole print. As a rule of thumb, printing high-temp engineering materials costs two to three times the electricity of PLA on the same machine.
Cost per print, with real math
Take a typical 8-hour PLA print at an average draw of 120W: 0.12 kW × 8 h = about 1 kWh. At average US residential electricity rates (roughly $0.16-0.18 per kWh in 2026), that's $0.15-0.20 per print. A weekend-long 48-hour cosplay print at the same draw is about 5.8 kWh — around a dollar. Compare that to the $5-15 of filament the same prints consume, and electricity is clearly the minor line item.
What about resin printers?
Resin (MSLA) printers generally draw less than FDM machines. There's no heated bed — power goes to the UV LED array, the LCD, the Z motor, and on some machines a small vat heater. Typical draws land in the 30-80W range while printing. The added electricity of resin printing tends to come from post-processing accessories: a wash-and-cure station running for 10-20 minutes per batch adds a trivial amount.
How to keep the cost down
If you want to minimize electricity: print PLA or PETG when the part allows it (lower bed temperature), use an enclosure for high-temp materials (it holds heat, so the bed cycles less), slice for shorter print times where quality permits, and turn the printer off rather than leaving it idling for days. But keep perspective — for most hobbyists the entire annual electricity cost of the printer is a few dozen dollars.