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Reduction measure

Variable-speed drives & motors

Pumps and fans controlled by throttling or dampers waste the cube law: 20% speed reduction ≈ 50% power. VSDs match motor output to real demand.

Size it for your plant →Carbon bill calculator
The numbers

Cost, effect, payback

MetricValueNote
Abatement cost≈€-10–20/t CO2
Addresses20–50% of the motor's kWhof relevant emissions
Typical payback1–3 yr
Carbon value at full price€77.4/t avoidedEUA 11 Jun 2026
How it works

Mechanism & sizing

Screen for: control valves running half-closed, recirculation lines always open, dampered fans. Affinity laws do the math; IE4/IE5 motors add 2–4% on top at replacement. This is Scope 2 — pair with thermal measures for the full bill.

Inzonex removable modular insulation on industrial equipment
Cut the tonnes at the source

Hot industrial equipment? Cut the heat loss.

Boilers, kilns, heat exchangers, valves and steam lines lose energy continuously. Inzonex makes patented (UK GB2508992.1) removable modular insulation — snap-fastened covers engineered per temperature tier, not generic off-the-shelf jackets:

  • Up to 90% less heat loss from insulated surfaces
  • Surface temperature ≤45 °C — touch-safe for workers (EN ISO 13732-1)
  • 6× faster maintenance access than fixed cut-and-weld lagging — unclips and refits in minutes, no destruction
  • Inspectable — comes off to check for corrosion under insulation, then refits like-new (generic jackets often don't survive removal)
  • Typical payback under 2 years (some 9–11 months)
See Inzonex process-equipment insulation →Run the savings study
Where it applies

Industries where variable-speed drives & motors earns first

Automotive manufacturing
≈0.5–0.7 t CO2 per vehicle produced
Pharmaceuticals
site-level; cleanroom HVAC + steam dominate
Food processing
≈0.1–0.5 t CO2/t product
District heating
≈0.2–0.3 t CO2/MWh heat
Pulp & paper
≈0.3–0.6 t fossil CO2/t
FAQ

Variable-speed drives & motors, answered

Where do VSDs save most?
Centrifugal pumps/fans with variable demand controlled by throttling — the cube law makes part-load savings huge.
Typical saving?
20–50% of that drive's electricity; site-level motor programmes commonly cut 5–10% of total kWh.
Any risks?
Harmonics and bearing currents — solved with filters/insulated bearings; specify at purchase.
How this page is built: heat-loss figures follow ASTM C680 / ISO 12241 (the method behind our public calculators); facility emissions from Climate TRACE & EU ETS verified data across 30,000+ industrial sites; the 2026–2034 schedule is Regulation (EU) 2023/956, not a forecast. Published by Inzonex — manufacturer of modular removable insulation (UK Patent GB2508992.1). Spotted an error? Tell us — we correct on evidence.
Source: Inzonex Carbon Hub — inzonex.co.uk/carbon · prices dated as shown on each figure · schedule per Regulation (EU) 2023/956 · indicative analytics, not compliance advice.