Numbers, not narratives.
Every story is told with the baseline, the intervention, the measured result, the commercial logic, and the evidence. Because that is what the decision needs to hold.
$148k/yr verified on an Auckland CBD A-grade office, with NABERSNZ 3.5 to 4.5. Utility, occupancy, and IEQ metering across every office and branch of a big-four NZ bank. $412k/yr blended on cold-chain. $92k/yr operational tranche at Mackersy. 21% common-area reduction in regional retail. $60-72k/yr at Meadow Mushrooms.
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Mixed-use NZ CertifyFrom NABERSNZ 2.0 toward 4.5 stars on existing infrastructure.
A Hamilton precinct started from a 2.0-star NABERSNZ base. An Opportunity Scan turned existing BMS data into a costed pathway: ~37% energy reduction, ~$92k a year in projected savings, no major capex, and finance-ready documentation to support a green loan application.
- Saving
- ~$92k/yr
- Capex
- No major capex
- Rating
- NABERSNZ 4.5 target
22 April 2026
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Multi-site NZ Save moneyEvery office and branch of a big-four bank, metered.
One of New Zealand's big four banks wanted its whole network visible: what each site uses, what conditions are like inside, and how the space actually gets used. Tether rolled out utility, occupancy, and IEQ metering across every office and branch, delivered with Aotea Group. Savings are already landing across energy and space use, and the same data gave the bank the evidence to get a failing HVAC system repaired by its landlord.
- Coverage
- Every site
- Reported payback
- One month
- Metering
- Utility, occupancy, IEQ
18 March 2026
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Industrial NZ Make moneyRefrigeration tune-up plus 720 kW rooftop solar.
A cold-chain distribution facility lowered its run rate and added a new income line. Refrigeration tuning paired with 720 kW of rooftop solar covering 38% of annual load.
- Saving
- $412k/yr
- Payback
- 4.2 yrs
- Solar offset
- 38%
4 March 2026
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Industrial NZ Save moneyTwo 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.
- Saving
- $60-72k/yr
- Payback
- Under 12 months
- Verification
- M&V tracked
26 February 2026
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Office NZ CertifyFrom NABERSNZ 3.5 to 4.5 in nine months.
An A-grade tower lifted a full star on its NABERSNZ rating without major capex. BMS tuning, after-hours profile changes, and tenant comfort feedback did most of the work.
- Saving
- $148,000 / yr
- Payback
- 5 months
- Rating
- NABERSNZ 4.5
15 February 2026
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Retail NZ Save money21% reduction across the centre common area, verified.
A regional shopping centre cut energy across the common area by 21% in twelve months. Sub-metering revealed where the load actually lived. The works followed.
- Saving
- 21% energy / yr
- Payback
- 14 months
- Verification
- M&V verified
20 January 2026