Azbil Corporation · Year ended March 2026

Azbil’s test building alternates cool and warm air

Azbil supplies equipment and systems that measure temperature, pressure and flow and control equipment in buildings and factories. For buildings, it provides sensors, valves and air-conditioning control systems, along with maintenance and energy-efficiency improvements after installation.

4 primary sourcesPublished 2026-10-26Updated 2026-10-26

A building cutaway connects two water pipes and an air-handling unit to a workspace with a desk sensor

Water in the pipes; control over the air

A schematic of equipment and people based on Azbil’s account of its No.103 experimental building.

Two water pipes feed the air-handling unit

Water temperature changes by season. The system switches between cool and warm air about every 20 minutes and adjusts airflow at each outlet.

Measure near people and adjust operation

Desk sensors measure local conditions. Valve openings help determine whether the plant is needed; the plant and pumps stop when conditions allow.

Solid lines and broad arrows: water or air movement. Dashed lines: information and control relationships.

Not a pipework or control-engineering drawing. The cool- and warm-air drawings represent different times, not simultaneous supply. This is the company’s test-building example; customer buildings do not all share this arrangement.

Source: Azbil, “The evolving No.103 experimental building” (Japanese; checked October 19, 2026)

Decide how much air to supply and when the plant should run

About 70% below the reference

No.103 operating-energy result announced in January 2026

Azbil reported an energy reduction of about 70% in actual operation at this building. The published graphic compares it with the reference level under Japan’s energy-conservation framework. The modeled design gives a 31% reduction; the operating data are shown as equivalent to a Building Energy Index of 0.30.

The comparison covers air conditioning, ventilation, hot water, lighting and related uses; plug loads and experimental power are shown separately. This is the result of combining equipment and controls in the company’s own experimental building. It does not isolate one control’s effect or establish a common saving for customer buildings. The announcement does not give a detailed measurement period.

Turn operating data into the next improvement proposal

Diagnose → propose → check after changes

Customer control-improvement services described in azbil Report 2026

Operating data also guide work in customer buildings. Azbil describes remote maintenance that combines data from control systems with equipment specifications, including capacity, to identify energy-saving opportunities and propose changes. It also diagnoses the effect after those changes are made.

The service offering includes identifying abnormal control-software behavior and its causes, and checking equipment through logs and measurements. After supplying equipment to building owners and managers, Azbil continues to examine and improve its operation. These customer services are a separate disclosure from the test building’s energy result above.

CONCEPT MAP

Use operating data to diagnose and improve

Uses of remote maintenance described in the integrated report.

Building operating dataCombine with specifications and service information

Abnormal control behaviorDiagnose the location and cause from operation
Energy-saving opportunitiesUse operating data and equipment capacity to propose changes
Effects after changesCheck the outcome through operating data

Building-business sales grew despite lower new-building sales

DATA VIEW

BA profit grew faster than sales

Japanese GAAP, BA segment profit. Bars use ¥million; displayed values are ¥bn. Both use the same zero-based scale. Sales grew 5.1% over these years. Source: financial results, physical PDF page 5.

Year ended March 2025¥24.363bn

Year ended March 2026¥28.901bn

THE VIEW AFTER THE NUMBERS

What the numbers suggest

Azbil’s test building combines the timing of cool and warm air, airflow at each outlet and the conditions for running the plant and pumps. Air-conditioning control includes deciding how equipment operates as well as making the devices.

For customers, Azbil offers services that turn operating data into improvement proposals and check the effects afterward. In the year ended March 2026, existing-building work, services and overseas growth lifted BA sales despite a decline in new-building work. There is more for Azbil to do after the building is completed.

Primary sources used

The evolving No.103 experimental building (Japanese)

Azbil Corporation

Open source →

Energy Conservation Grand Prize for No.103 building (Japanese)

Azbil Corporation · 2026-01-28

Open source →

azbil Report 2026, Business Strategy section (Japanese)

Azbil Corporation · 2026-08-31

Pages used: p.7 / p.13

Open source →

Consolidated Financial Results, year ended March 2026, Japanese GAAP (Japanese)

Azbil Corporation · 2026-05-13

Pages used: p.5 / p.5,26

Open source →

Azbil’s test building alternates cool and warm air

Water in the pipes; control over the air

Two water pipes feed the air-handling unit

Measure near people and adjust operation

Decide how much air to supply and when the plant should run

Turn operating data into the next improvement proposal

Use operating data to diagnose and improve

Building-business sales grew despite lower new-building sales

BA profit grew faster than sales

What the numbers suggest

Primary sources used

The evolving No.103 experimental building (Japanese)

Energy Conservation Grand Prize for No.103 building (Japanese)

azbil Report 2026, Business Strategy section (Japanese)

Consolidated Financial Results, year ended March 2026, Japanese GAAP (Japanese)

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