Reshaping the Smart Energy-Management Market

Founded in 1993, IESS Taiwan has been the market leader in commercial A/C distribution and maintenance services in Taiwan for more than 21 years. Leveraging their in-depth understanding of critical temperature applications, IESS Taiwan teamed up with Exosite to reshape the A/C industry with a rental-based smart A/C solution.

The opportunity

Air conditioning accounts for over 40% of total electricity used by large commercial and retail spaces in warmer months — a significant cost for chain stores, supermarkets, and convenience stores already operating on thin margins. Replacing outdated A/C units to improve efficiency is often prohibitively expensive: the equipment alone can account for 15–30% of total construction costs for a new commercial building. Business owners needed an affordable path to better visibility and control over their electricity usage, without buying new equipment outright.

The solution

IESS Taiwan partnered with Exosite to build a smart electricity-monitoring system that collects performance data from A/C units — voltage, amps, kilowatts, kilowatt hours — along with indoor air quality data including temperature, humidity, and carbon dioxide levels.

Data routes to the Murano IoT platform via a Wi-Fi-enabled smart control gateway, where it’s aggregated to monitor electricity usage, generate consumption records, and identify abnormal operating conditions. It’s then visualized in Exosite’s ExoSense condition monitoring application with site-specific dashboards, so business owners can see real-time usage, remotely control consumption, and reduce electricity costs.

IESS Taiwan makes the connected A/C solution available for a flexible rental fee that can include monitoring and other services like predictive maintenance — extending the operating life of the A/C units themselves along with cutting costs for the customer.

Results

• Measurable user savings. Organizations applying IESS Taiwan’s smart A/C solution have seen energy savings in excess of 20%, with phantom loads eliminated entirely.
• Improved customer service. The rental-based model includes regular equipment maintenance, enabling more proactive service and reduced maintenance costs for customers.
• A new recurring revenue model. IESS Taiwan transformed from a traditional commercial A/C distributor into a recurring SaaS revenue company, where users pay to access usage data for better-informed scheduling, maintenance, and upgrade decisions.
• Market leadership. Through Exosite’s IoT enablement, IESS Taiwan is now a leading solution provider for real-time energy management and savings in Taiwan’s commercial A/C market.