Tool

Motor drive energy savings calculator

Estimate in seconds how much energy and money a variable-speed drive (VFD) can save each year on your pumps and fans.

Facility details

Motor power · kWAnnual running time · hours/year

Electricity unit price · ₺/kWh

Average flow demand%75

Systems rarely run at full capacity — average demand is typically 60–80%.

Current control method

Throttle valve / damperFlow is restricted with a valve or damperOn–off / bypassMotor runs at full speed then stops

Drive investment · ₺Enter the estimated drive + installation cost to see the payback period (optional).

Estimated annual savings

Annual savings /year

TRY 221,822

Energy saved: 73,941kWh/year
Savings rate: %48
CO₂ avoided: 32,534kg/year
Simple payback: —

Power comparison

Current method%85

With a drive%44

This estimate is for centrifugal pumps and fans — that is where a drive's energy savings are real. On constant-torque loads such as conveyors or compressors, a drive's benefit is control and soft starting, not energy.

＋ Assumptions and method

Affinity law for centrifugal pumps/fans: power ≈ the cube of speed (P ∝ N³).
A 3% floor is added for motor and drive losses — the result stays conservative.
With throttling, power stays high even as flow drops (energy is wasted as heat at the valve).
CO₂: 0.44 kg/kWh (Turkish grid average, approximate).
On systems with high static head (lift), real savings may be lower.

Let us run the exact numbers for your facility

We measure your real load profile and present the right drive and expected return in a clear report.

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This is a preliminary estimate; real savings depend on your load profile, static head and efficiency. We measure your site on location for an exact analysis.