Case Analysis

CHALLENGE

High HVAC Consumption

SOLUTION

Aunoa Smart Controls Module installed on all the HVAC equipment for Monitoring and Control

RESULTS
  • Saved Energy
  • Reduced Cost

Highlights Savings HVAC Consumption

On Electricity Consumption

12%

Monthly February 2020
Units – 12785 kWh
Hotel Four Points by Sheraton put an end to wastage of energy consumption of HVAC by saving 10% – 15% through Aunoa Smart control’s wireless utility management solutions.
Challenges

A lack of preventive maintenance led to building inefficiencies, skyrocketing utility bills and comfort concerns. With energy and operating costs consuming more of its available funds, the Hotel sought a cost-effective way to make necessary improvements and reverse skyrocketing utility bills.

Solution

A detailed analysis was carried out and the below solutions had been provided

  • Dynamic Controlling of Air handling units with multiple scheduling and temperature setpoints based on the requirement.
  • Scheduling of ventilation fans.


This achieved 10% to 15% savings on HVAC. Along with Optimization of Manpower on the operations front and real-time monitoring of Water Systems and Cold Rooms.

Project

Aunoa Wireless Utility Management was started in the month of December 2019 and completed in the span of just two months by end of January 2020, the project consisted of Monitoring and Control of various low-side HVAC equipment and monitoring of high-side HVAC equipment and various other utilities.

The detailed list of equipment undertaken for Wireless Utility Management System is as follow.

Sr. No

 

Equipment Name

Quantity

Monitoring and Control

Monitoring

1

Water Cooled Chillers

 

1

2

Chilled Water Primary Pump

 

2

3

Condenser Water Pump

 

2

4

Cooling Towers

 

2

5

Chilled Water Coil AHU

17

 

6

Chilled Water Coil TFAs

11

 

7

Ventilation Fans

10

 

8

Staircase Pressurization Fans

 

2

9

Lift well Pressurization Fans

 

2

10

Water Tanks

 

5

11

HNS Pumps

 

3

12

Cold Rooms

 

6

13

Electrical Energy Meters

 

25

Results
Conditions Before Aunoa Utility Management System

Before installation of Aunoa Wireless Utility Management System the electrical consumption was

Feb 2019

Electrical Energy Consumption ( kWh)

Total Consumption of Property

213015

Total HVAC Consumption

104377

This HVAC consumption consisted of electrical energy consumed by:

  1. Chiller System: Was operated on temperature requirement basis by manually changing the Set point of Chilled Water
  2. Air Handling Unit: Turned ON and OFF manually, without temperature based
  3. Treated Fresh Air Units: Turned ON and OFF manually, without temperature based
  4. Room Fan-Coil Units: These units are installed in the room and the total control of these units is with Guests staying in the
  5. Ventilation Fan: Turned ON and OFF
Conditions After Aunoa Utility Management System

After Successful Commissioning of Aunoa Utility Management System the HVAC consumption for February 2020 was brought down to

Feb 2020

Electrical Energy Consumption ( kWh)

Total HVAC Consumption

91592

Generating a saving of 12785 kWh units which is 12% reduction in Electrical Consumption than previous year.

This Savings was achieved by

  1. Air Handling Unit and Treated Fresh Air Units: Turned ON and OFF by auto scheduling and with temperature based dynamic set-point

Ventilation Fan: Turned ON and OFF by auto scheduling.

EFFECTIVE ROI

Less ROI period

 

REDUCED CONSUMPTION

Directly reduced the HVAC

Electricity Consumption by 12%