How Much Electricity
Does a 3D Printer Use?
3D printers vary more than most appliances on running cost. A small FDM printer pulls 50W. An enclosed industrial-style printer with heated bed plus chamber pulls 400W+. The honest UK 2026 range is 1p to 10p per print hour or £25 to £150 per year for a typical hobbyist.
A typical UK consumer 3D printer draws 50 to 400 watts depending on type, size plus heated features. At the current Q2 2026 Ofgem unit rate of 24.7p per kWh that means roughly 1p to 10p per hour of printing. A small entry-level FDM printer (Ender 3 class) costs around 2p per hour. A larger heated-bed FDM printer costs 5p to 7p per hour. Resin LCD printers cost 1p to 3p per hour. Enclosed printers with heated chambers reach 8p to 10p per hour. For a typical hobbyist printing 10 hours per week, annual cost runs £13 to £60.
The figures that matter
Small FDM print
Entry-level FDM printers like Ender 3 plus Prusa Mini. Average load during typical print.
Mid-range FDM
Heated bed plus larger build volume. Average load during steady print.
Enclosed or large
Heated chamber, large build volume, multi-extruder. Higher draw across longer prints.
Hourly cost
Range across consumer 3D printer types at 24.7p per kWh.
Four things to consider
Heated bed dominates draw
Heated print beds account for 60 to 80 percent of FDM printer electricity. Bed temperature setting matters.
Resin printers are efficient
LCD resin printers draw far less than FDM equivalents. The print mechanism itself is low-power.
Long prints add up
A 24-hour print on a 200W printer uses 4.8 kWh, costing £1.19. Multi-day prints scale linearly.
Idle plus standby costs minimal
3D printers idle at 5 to 20W. A printer left on overnight costs 2p to 10p in standby alone.
3D printer electricity by type plus print job
3D printer running costs split sharply by type. FDM (fused deposition modelling) printers heat both the nozzle plus often the build plate. Resin LCD printers use UV LEDs to cure liquid resin, drawing far less power. Enclosed industrial-style printers add chamber heaters plus tend to be larger.
Real numbers at 24.7p per kWh (Q2 2026 Ofgem cap):
- Small FDM printer (60W average), 4-hour print: 0.24 kWh per print. 5.9p per print.
- Mid-range FDM with heated bed (200W average), 8-hour print: 1.6 kWh per print. 39.5p per print.
- Resin LCD printer (50W average), 6-hour print: 0.3 kWh per print. 7.4p per print.
- Enclosed printer with chamber heat (350W average), 10-hour print: 3.5 kWh per print. 86.5p per print.
- Hobbyist using mid-range FDM 10 hrs weekly: 104 kWh per year. Roughly £26 per year.
- Heavy user printing daily 4 hrs on enclosed printer: 511 kWh per year. Roughly £126 per year.
Why heated beds dominate FDM electricity. An FDM printer's hotend heats up to 200 to 250°C using around 30 to 50W. The heated bed (typically 60 to 100°C for PLA, higher for ABS or PETG) uses 100 to 200W. Across a 4-hour print, the bed heater accounts for 60 to 80 percent of total energy use. Reducing bed temperature where filament tolerates it saves real money on long prints.
What changes 3D printer running costs:
- Print duration. Longer prints scale linearly. Multi-day prints can use 5 to 15 kWh.
- Bed temperature. PETG plus ABS need 80 to 110°C beds versus 50 to 60°C for PLA. Higher temperature equals higher running cost.
- Enclosure plus chamber heating. Required for ABS or polycarbonate. Adds 100 to 200W to typical draw.
- Cooling fans. Run continuously during print. Small load (5 to 15W) but cumulative.
- Idle hours plus standby. Many 3D printer users leave printers on between jobs. 5 to 20W phantom draw adds up.
Small business plus prosumer use. Home businesses running a 3D printer 8+ hours daily often discover their electricity bill rises noticeably. A 250W mid-range FDM printer running 8 hours daily uses 730 kWh per year, costing £180. Worth factoring into pricing models.
Real number ranges
Annual 3D printer running cost (UK 2026)
Inside a typical 8-hour FDM print
Heat-up
Hotend plus bed heat up to target temperature. Brief peak draw 250 to 350W. 0.02 kWh used.
Steady print
Bed heater cycles on plus off. Hotend cycles. Stepper motors plus fans run. Average 180 to 220W.
Final layers plus cooling
Print finishes. Hotend cools. Bed often holds heat for first cooldown phase.
Off or standby
Printer back to idle (5 to 20W) or fully off. 8-hour print total: 1.4 to 1.8 kWh, costing 35p to 44p.
Four ways to cut 3D printer running costs
Reduce bed temperature where possible
PLA prints fine at 50 to 55°C bed. Many users print at 60 to 70°C unnecessarily. Saves 15 to 25 percent of bed heater cost.
Switch off between prints
Idle 3D printers draw 5 to 20W. A printer left on overnight uses 0.05 to 0.16 kWh standby alone.
Use enclosure only when needed
Chamber heating is required for ABS or PC but not PLA or PETG. Disable when printing PLA.
Schedule long prints overnight on Economy 7
Households on Economy 7 tariffs can save 40 to 50 percent on multi-hour overnight prints.
Compare the options
FDM 3D printer with heated bed
- •150 to 250W typical during steady print.
- •4p to 6p per print hour at 24.7p per kWh.
- •Hotend plus heated bed dominate draw.
- •Suits functional parts, large prints, enclosures, brackets.
- •£25 to £60 per year at hobbyist use.
Resin LCD 3D printer
- •40 to 80W typical during steady print.
- •1p to 2p per print hour at the same Ofgem rate.
- •UV LEDs plus small Z-axis motor only.
- •Suits high-detail miniatures, jewellery, dental, engineering.
- •£7 to £25 per year at typical use.
3D printers are a small but growing electricity load in UK homes plus workshops. Our full Appliances hub covers running costs across every major UK household appliance.
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This article is one chapter inside our complete Appliances knowledge base. The hub covers running costs across every major household appliance from kettles to heat pumps.
More on appliance running costs
Three further workshop plus home electronics articles in the same hub group cover related questions. The first is how much electric does a pc use which often runs alongside a 3D printer for slicing plus monitoring. The second covers how much electric does a computer use for the broader category. The third is how much electricity does a house use per day uk for household total context.