3d Calcs
CONFIG:
130 W
$0.15/kWh
$20.00/kg spool
Bed Slinger FDMVerified: 2026-01-15

Prusa Research Original Prusa MK4

Power consumption analysis, verified wattage measurements, and interactive electricity cost calculator for the Prusa Research Original Prusa MK4.

Average Power
80 Watts
During active printing
Peak Warmup Power
240 Watts
Bed heating initial burst
Build Volume
250 x 210 x 220 mm
X × Y × Z printable area
Estimated Cost / Hour
$0.013
at $0.16 / kWh

Interactive Electricity Cost Calculator

Adjust printing hours and your local energy tariff to estimate daily, monthly, and annual operating costs.

$

US Average: ~$0.16 • EU: ~€0.25 - €0.35 • UK: ~£0.28

hrs/day
Watts

Pre-filled from measured average operating telemetry.

Projected Operating Cost
Daily
$0.10
Monthly
$3.07
Yearly
$37.38
Energy cost represents approximately 3% to 8% of total 3D printing expenses for the Original Prusa MK4. The majority of expenses remain filament plastic and machine depreciation.
Source: Prusa Research Knowledgebase

Hardware & Build Specifications

Manufacturer
Prusa Research
Motion Kinematics
Bed Slinger FDM
Build Envelope
250 x 210 x 220 mm
Bed Construction
Magnetic Heatbed with Spring Steel Sheet
Typical Peak Draw
240W

Frequently Asked Questions

How much electricity does the Prusa Research Original Prusa MK4 use per hour?

The Prusa Research Original Prusa MK4 consumes an average of 80 Watts while printing. Operating it for 8 hours uses approximately 0.64 kWh, costing roughly $0.10 at standard rates ($0.16/kWh).

Why does peak power reach 240W during warmup?

During the initial 3 to 6 minute warmup phase, the heated bed and hotend run at 100% duty cycle to reach target temperature as quickly as possible. Once stabilized, power drops to the ~80W average.

How much power does the Original Prusa MK4 use when idle or in standby?

When powered on and in standby (display on, mainboard fans idle, heaters off), it consumes roughly 5W to 15W of background electricity.

Can the Original Prusa MK4 run on a UPS battery backup or portable power station?

Yes. Because average running draw is only ~80W, a standard 500Wh portable power station or 1000VA UPS battery can easily sustain printing for 3 to 5 hours through power outages.

Does printing ABS or ASA with a 100°C bed increase electricity cost?

Yes. Maintaining a heated bed at 100°C-110°C for engineering materials requires more continuous thermal power than printing PLA at 60°C, increasing average power draw by roughly 40W to 80W.