The approach · Step 03

Optimizations — cut your compressed air costs

Cut your compressed air costs: sequencing, pressure band, heat recovery, VSD. Optimizations prioritized and costed by Onyx M3.

Cover page of a compressed air system optimization report (Onyx M3).
Excerpt from an Onyx M3 optimization report.

1 What we target

The optimizations

An à la carte menu. Based on your system’s profile, we keep the most cost-effective levers — from a pressure adjustment to a subsidy-backed equipment replacement.

01

Compressor sequencing

Run the right machines together, at the right time.

02

Operating pressure bands

~1% energy per 2 psi. Every psi counts.

03

Eliminating inappropriate uses

Blowing, cooling, agitation… often replaceable.

04

Heat recovery

Reclaim compressor heat — space heating, water, process.

05

Variable-speed drives (VSD)

Match output to real demand, continuously.

06

Equipment replacement

With Hydro-Québec financial incentives where eligible.

07

Obsolete, energy-hungry accessories

Filtration and distribution brought up to standard.

08

Eliminating over-maintenance

Stop paying for work that adds nothing.

09

Maintenance routes

Optimize service frequencies and routes.

10

Condensate treatment

Oil-water separation, environmental compliance.

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And more

The levers we choose depend on your system’s real profile.

2 Concrete ballpark figures

Savings examples

Three classic levers, costed on Québec assumptions. Indicative — your actual gains depend on your installation.

Lowering pressure by 10 psi (~0.7 bar) on 200 HP of compressors — 8,000 h/yr, $0.08/kWh

≈ $5,100/yr

~64,000 kWh — rule of thumb: ~1% per 2 psi

Eliminating 3,000 h of unloaded running on a 100 HP compressor — $0.08/kWh

≈ $4,800/yr

~60,000 kWh — unloaded ≈ 25% of full load

Shutting down a 75 HP compressor running 8,000 h/yr — $0.08/kWh

≈ $38,400/yr

~480,000 kWh — at full load

Indicative estimates. Assumptions: ~0.8 kW/HP at full load, unloaded ≈ 25% of full load, ~1% energy per 2 psi. Actual savings vary by system.

3 Interactive tool

Estimate your leak cost — and the savings within reach

Three inputs are all it takes. The simulator applies industry statistics (U.S. DOE) to put a dollar figure on your leaks and on what you can recover quickly.

01 · Your system

Add up the nameplate HP of the compressors in service (e.g., 2 × 100 HP = 200).
HP
Hours during which at least one compressor is running.
Not sure? Leave $0.08 — a typical industrial rate in Québec.
$/kWh
Without a recent survey, most plants lose 20–30% of their compressed air to leaks (U.S. DOE). Pick the closest profile.

What it means

Savings within quick reach
$12,800 /yr
≈ half of all leaks, fixed without major investment.
Annual loss to leaks $25,600
Lost flow — the equivalent of a 50 HP compressor running for nothing 200 SCFM
Annual compressed air cost $102,400
Get your leaks measured (audit)

Assumptions: ~0.8 kW/HP at full load; ~4 SCFM/HP at ~100 psi. Leak statistics: U.S. DOE / Compressed Air Challenge — a plant without a repair program typically loses 20–30% of its compressed air to leaks; a well-managed system stays under 10%; about half of all leaks (couplers, hoses, drains) can be fixed without major investment. Leak repair is a maintenance activity: it is not eligible for Hydro-Québec incentives (which target energy-efficiency projects). Indicative estimates; actual results vary.

Let’s talk about your compressed air system

A free consultation to pinpoint your fastest wins.

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