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Industrial NZ Save money 26 February 2026

Two farms, vastly different power bills, one targeted upgrade.

Identical operations across two mushroom farms were producing very different energy bills. Tether's benchmarking made the difference visible, pointed to motor upgrades rather than full fan replacements, and unlocked $60,000 to $72,000 a year in energy savings.

Meadow Mushrooms farm-scale plant interior.
Baseline
Two farms, identical operations, untracked fan and chiller load
Intervention
Targeted metering across chiller and fan performance, peak usage mapping, power distribution clarity
Saving
$60-72k/yr
Payback
Under 12 months
Verification
M&V tracked

The asset

Two Meadow Mushrooms farms running identical operations on paper, producing very different power bills in practice. Legacy cooling systems and untracked fan usage created blind spots in energy performance. Management lacked the data to act with confidence.

What the data found

Tether installed targeted sensors across both farms, focused on chiller and fan performance, peak usage mapping, and power distribution clarity. The data revealed which assets were driving up usage on the higher-cost farm, and pointed to quick wins that did not require replacing the plant.

What we delivered

Rather than recommending full fan replacements, the benchmarking pointed to motor upgrades that would deliver the savings at a much lower cost. The evidence also reshaped how energy use feeds back into procurement, capital improvement decisions, and operational planning.

The numbers

  • 25,000 to 30,000 kWh per month in energy reduction
  • $5,000 to $6,000 in monthly savings
  • $60,000 to $72,000 annualised
  • Smarter upgrade path identified (motor upgrades, not full fan replacements)
  • Energy data now feeds procurement, capital and operational decisions

Why it worked

Real-time data isolated the inefficiency, validated the upgrade decision, and kept the change small. The cheap option was also the right option, and the data could prove it.

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