Motor Energy Savings Calculator | IE5 Upgrades Volcano Electric

Energy Efficiency Assessment

Energy Savings Calculator

See what you would save by replacing a fixed-speed motor driven by a damper or throttling valve with a Volcano Electric IE5 permanent-magnet (PMSM) motor and drive. Adjust the inputs — results update instantly.

IE5 Ultra-Premium efficiency class
0.4–110 kW EC fan motors & PMSM range
IEC 60034-30-1 Standards-based calculation

Your existing motor

Application

Centrifugal fan, flow currently regulated by an outlet damper.

Number of motors

Motor rated power

Current efficiency class

Nominal efficiency at this rating: —

Current flow control method

Operating profile

Average flow / duty point 70%

20%60%100%

Running hours per year 4,800 h

Financial & environmental

Currency

Electricity price (USD/kWh)

Grid CO₂ intensity (kgCO₂/kWh)

Advanced: investment assumption for payback

Installed upgrade cost (USD per kW)

Default is auto-estimated from motor size. Type your own figure to override; clear the field to return to the default.

Recommended upgrade

Volcano IE5 PMSM Motor + HS-Series Drive

IEC-frame permanent-magnet synchronous motor, efficiency up to 96.8%, one frame size smaller than the induction motor it replaces — paired with a Volcano FOC vector drive.

New motor efficiency

—

Efficiency class

IE5 (GB 18613 Grade 1)

Speed control

Variable speed

—%

Lower annual electricity use versus your current IE3 fixed-speed installation

Annual electricity consumption 20 × 75 kW · 4,800 h/yr

Now IE3 + damper

—

With Volcano IE5 + drive

—

You avoid — of electricity every year.

—

Annual cost savings

—

Simple payback time

—

Annual energy saved

—

Annual CO₂ avoided

—

Over a 10-year service life this upgrade returns approximately — in avoided electricity cost.

Want these numbers verified against your actual load profile?

Send us your fan or pump curve, duty hours and nameplate data. Our application engineers return a motor-by-motor savings report and a firm quotation within 24 hours.

Request a technical evaluation Email an engineer

Technical assumptions, methodology & sources

Baseline (your current system)

Direct-on-line induction motor, 4-pole, 50 Hz.
Nominal efficiencies per IEC 60034-30-1 Table 1 (IE1–IE4). China: GB 18613-2020 Grade 3 = IE3, Grade 2 = IE4, Grade 1 = IE5.
Flow regulated by outlet damper (fan) or throttling valve (pump); part-flow power multipliers follow the published ABB FanSave / PumpSave control curves, originating from Westinghouse Bulletin B-851.

Upgrade (Volcano Electric)

IE5 nominal efficiencies per IEC 60034-30-1 Ed. 2.0 (2025) / IEC TS 60034-30-2, cross-checked against GB 18613-2020 Grade 1.
Speed control instead of throttling; shaft power follows the affinity laws (P ∝ n³) for systems with negligible static head.
Drive efficiency from the US DOE part-load drive efficiency table (97% at full load, 95% at 50% load).
≤22 kW fan duty is served by the integrated HSE EC fan motor (motor + drive in one unit, IE5, IP54–IP66); above that by an HSI IE5 PMSM plus an HS-series FOC drive.

Financial & environmental factors

Payback is simple (undiscounted): installed upgrade cost ÷ annual electricity cost saving. It excludes maintenance, power-factor and downtime benefits, and excludes any energy-efficiency subsidy.
Default installed cost scales with motor size and is an industry-typical figure — always overwrite it with a real quotation.
CO₂ factors: China 0.5306 kg/kWh (MEE & NBS, 2023 data, published 2025); EU-27 0.1834 (EEA, 2024); USA 0.3480 (EPA eGRID 2023); world 0.458 (Ember, 2025).
Equivalences: 22 kg CO₂ absorbed per mature tree per year (European Commission, SWD(2021) 651); 2,300 kWh per electric car per year (ODYSSEE-MURE 10,800 km/yr at 21 kWh/100 km).

Disclaimer

This calculator gives a rough estimate for illustrative purposes only. It cannot capture every site variable — static head, duty-cycle distribution, ambient conditions, harmonics, cable length or existing plant condition. Figures are provided on an “as is” basis. Volcano Electric makes no representation, guarantee or warranty as to their accuracy or completeness and accepts no liability for decisions taken on the basis of them. Contact us for a site-specific assessment.