Carrefour Taiwan — Nationwide HVAC Energy-Saving Thermal Monitoring (Since March 2017)

01 The Problem

Carrefour Taiwan runs dozens of hypermarkets across the country. HVAC accounts for 60–70% of the energy bill at every store, and across the chain that's a multi-million-dollar line item every year. Until 2017, every store's HVAC was tuned by hand by a local technician — no central visibility, no real way to know if a single store was wasting energy.

The Risk

HVAC accounts for 60-70% of mass-retail energy use. Inaccurate supply/return ΔT (within IAQ-regulation tolerance) doubles consumption unnoticed.

Detection Gap

Global Carrefour target: 30% energy reduction in 5 years per ESG plan.

02 The OctosX Solution

We deployed Thermalpas thermal sensors on the HVAC supply and return ducts at every store, with the data flowing back to OctosX. Operations now sees, in one dashboard, which stores are tuned well and which are overworking. The HVAC schedule is driven by occupancy and weather, not by a thermostat dial.

Sensor & Edge

Thermalpas L/LS/LR pipe-clamp series (±1°C accuracy) installed on every store's chiller pipes.

Cloud Logic & Alerting

OctosX Cloud computes actual per-store BTU load, dynamically modulating chiller operation.

03 The Outcome

Since March 2017 the system has been running at scale across the Carrefour Taiwan network. The customer is on record describing it as a foundation of their energy-management strategy — and it remains one of OctosX's longest-running production deployments.

Field Detection

Deployed across Carrefour's 60+ Taiwan stores since 2017; per-store annual savings $80-150K, totaling $7M+/year.

Quantified Impact

Carrefour aims to scale globally to 12,000+ stores.

See it in your plant

Could this case be your plant?

Tell us about your facility — busbars, motors, panels, coal blowers, chillers, whatever your highest-risk thermal interface is — and we'll show you what an OctosX deployment would look like.

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