HVAC solutions save 15-30% energy for modern buildings

NGÀY ĐĂNG 10/04/2026

Tiên Võ

Are you facing these problems?

• Your HVAC system is still running, but you’re not sure if energy is being wasted?
• No data available to evaluate operational efficiency?
• Want to upgrade to a smart system but don’t know where to start?

If you are looking for:

• HVAC energy-saving solutions
• Ways to reduce central air conditioning electricity costs
• BMS deployment for buildings / factories

Then this article will guide you from understanding → choosing → implementing the right solution.

How much energy does HVAC consume?

In modern facilities in Vietnam such as office buildings, shopping malls, hospitals, or 24/7 manufacturing plants, HVAC systems account for 40-60% of total energy consumption.

The core issue is not the equipment - but how it is operated:

• Air conditioning runs on fixed schedules, not based on real demand
• Lack of centralized monitoring and control systems
• No data for operational optimization
• Equipment operates under overload or overcapacity

As a result:

• Energy costs increase year by year
• Low operational efficiency
• Equipment degrades faster
• Difficult to meet green building standards (LEED, LOTUS)

Learn more about how buildings waste energy and comprehensive optimization solutions in the article: Energy-saving solutions to reduce building operating costs.

HVAC Trends 2026: From manual operation to “smart optimization”

Modern HVAC no longer operates independently, but becomes part of the Smart Building ecosystem.

BMS - The central control system for HVAC in modern buildings

In the context of HVAC energy optimization, instead of operating separately, BMS (Building Management System) helps businesses connect - monitor - optimize the entire HVAC system on a single platform.

BMS collects data from HVAC equipment (Chiller, AHU, FCU, VRV/VRF...), analyzes real-time operating status, and automatically controls the system based on programmed scenarios.

Modern platforms from Legrand, ABB also allow:

• Remote control via web or mobile interface
• Multi-system integration: electrical, lighting, security
• Advanced energy data analytics

Simply put, BMS transforms HVAC from “schedule-based operation” → “demand-based operation.”

How does BMS help save HVAC energy?

• Load-based control: Reduce capacity at low load and increase when demand rises, avoiding continuous 100% operation
• Smart Scheduling: HVAC operates only during usage hours and automatically turns on/off based on schedules
• Zoning control: Each area has independent cooling levels, avoiding unnecessary full-building cooling
• Data-driven optimization: Analyze historical energy data to detect anomalies and suggest improvements
• Alerts & predictive maintenance: Early fault detection reduces downtime and energy waste

HVAC integrated with AI & IoT

In modern buildings, HVAC systems no longer just “react” to settings, but can learn - adapt - predict.

How do AI & IoT help save energy?

• Adjust based on user behavior: Learn usage patterns and optimize peak/off-peak hours
• Occupancy-based control: Adjust capacity based on the number of people in each space
• Optimize based on environmental conditions: Adjust according to outdoor temperature and utilize natural ventilation
• Predictive maintenance: Detect anomalies early to avoid inefficiencies and costly repairs
• Continuous optimization: AI continuously optimizes based on new data

Demand-based HVAC

Demand-based HVAC means system capacity is adjusted based on real-time demand in each area.

How does it save energy?

• Reduce load in low-occupancy areas and shut down when not in use
• Optimize ventilation based on CO₂ levels (ensure IAQ while saving energy)
• Zoning control to avoid uniform cooling across the entire building
• With AI integration, demand can be predicted in advance

Variable Speed Drive (VSD) & Load Optimization

Among HVAC energy-saving solutions, if you need one that is easy to implement - cost-effective - delivers immediate results, it is:

Variable Speed Drive (VSD/Inverter) combined with load optimization

VSD adjusts motor speed based on actual demand.

Without VSD, traditional systems operate as: ON = 100% capacity / OFF = 0%

This leads to energy waste, equipment wear, and unstable temperature control.

How does VSD save energy?

In reality, VSD is just a “tool” - load optimization is the “strategy.”

Load optimization means:

• Proper capacity allocation among equipment
• Adjusting operation based on actual demand
• Avoiding overloading or underloading

Common optimization strategies:

• Chiller optimization: Operate multiple chillers at optimal load
• Chilled water pump optimization: Adjust flow and reduce speed during low load
• Fan optimization: Adjust speed based on temperature/CO₂
• BMS integration: Coordinate all equipment and optimize performance in real time

Where should businesses start? (Practical approach)

A common question: Do we need to replace the entire HVAC system?

The answer: No.

Effective implementation roadmap:

• Phase 1 - Measurement: Install sensors and collect data
• Phase 2 - Control: Deploy BMS for centralized control
• Phase 3 - Optimization: Apply AI and automation

This approach ensures cost efficiency and measurable results at each stage.

KPS - Integrated HVAC solution provider

In today’s context of increasing operational cost pressure and sustainability standards, choosing an HVAC provider is not just about equipment, but about a partner who can:

Understand the system - Optimize holistically - Support long-term

KPS approaches HVAC through Integrated Solutions.

KPS HVAC Solution: From standalone systems → Integrated ecosystem

Electrical & Smart Building systems

Solutions from Legrand, ABB form the backbone:

• Electrical systems (switchboards, busway, switchgear)
• BMS - Building management system
• Smart Home / RCU
• Energy management systems

ICT infrastructure

• Network cabling, racks, LAN systems
• Switches, network infrastructure
• Ensure stable HVAC data transmission and IoT/AI connectivity

Security monitoring systems

• AI cameras for mechanical rooms
• Access control for technical areas
• Abnormality detection
  Technologies from: Bosch, CNB, i-PRO

Notification & operation systems

• HVAC fault alerts
• Overload warnings
• Operational guidance
  Integrated with Bosch audio systems

Fire protection systems

• Fire alarm systems
• Clean agent fire suppression
  From: Bosch, GST, Simplex, Janus Fire System, S-Tec Vina

Core value of KPS ecosystem

• System-wide integration: HVAC becomes part of Smart Building
• Comprehensive energy optimization
• Smart operation: Data-driven, automated, AI-supported
• Early detection - stable operation - reduced downtime

In modern HVAC, the key is not the best equipment, but: The ability to integrate and optimize the entire system

Benefits of implementing HVAC optimization

• Reduce electricity costs immediately: 15-30% savings
• Data transparency and full system control
• Extend equipment lifespan and reduce maintenance costs
• Stable operation with early fault detection
• Automation reduces reliance on human operation
• Meet green building & ESG standards
• Enhance user experience and productivity
• Increase long-term asset value

With its integrated ecosystem and proven implementation capability, KPS helps businesses:

• Reduce costs
• Optimize operations
• Build a sustainable Smart Building foundation

Are you paying daily for wasted HVAC energy?

Contact KPS today to find the optimal solution.