Energy-Saving Solutions for Building Operations

In the summer of 2023, the Northern power system, specifically Ha Noi, faced significant pressure. The heatwave has pressured the electricity supply given the high demand for air conditioning but also because there is not enough water to support hydropower production. As such, apartment and office buildings are facing the challenge of maintaining stable operations.  

Power-Efficient Solutions for Large Buildings  

1. Take advantage of natural light 

Buildings can reduce their dependence on electricity by utilising natural light in common areas. This can save up to 40% on power and creates a healthier living and working environment.  

Developers may consider installing large windows, glass walls, or automatic light conversion systems. This system will adjust the brightness of the lighting based on the amount of available natural light. Additionally, it will reduce electricity waste while ensuring sufficient lighting.  

2. Use energy-saving equipment and sensors in common areas  

To reduce electricity use in the building, developers may consider equipping the electronic systems with energy-saving appliances. For example, high-pressure water pumps can save 5% more electricity than regular pumps and frequency converters on water pumps and ventilation systems can reduce waste by up to 30%.  

Motion sensor technology also contributes to energy efficiency. It adjusts performance according to real conditions and the environment. For example, escalators with motion sensors only work when people step onto them, which prevents electricity waste when they are not in use.  

LED lights are currently the most efficient type of lighting. LED lights with motion sensors can help buildings reduce their electricity consumption by 30%.  

3. Use air conditioning system effectively 

Air conditioning (AC) systems are among the most energy-consuming systems in a building, as it is used all year for temperature control. Building managers should not use extremely hot or cold settings. AC systems should be moderate but comfortable.  

If Vietnam Electricity (EVN) is implementing power outages, the management board should work with them to arrange a schedule that best supports operations and customer experiences. For example, residential properties need power between 6 AM and 8 AM, while commercial properties only need full power from 8:30 AM.

4. Reduce power consumption in non-essential areas 

To enhance energy efficiency and environmental protection, developers should have short and long-term plans and goals to reduce electricity use. They should also have strategic plans to reduce power use in non-essential areas:  

• Turn off or reduce lighting in gardens, basements, and other common areas.

• Limit AC use.  

• Inform and guide residents and tenants on how to use electricity economically. For example, they should not run multiple air conditioners at the same time or have the temperature below 26°C.  

Developers should coordinate with property management teams to educate residents and tenants on how to save energy and protect the environment.  

5. Optimise power systems and energy administration 

To save electricity and optimise electrical systems, property management teams must have a plan for monitoring and controlling all the equipment, machinery, and systems in a building. A Building Management System (BMS) allows for the synchronisation, control, and management of all technical systems such as electricity, water, AC, ventilation, security, and firefighting.  Keeping these in check ensures accurate, timely, efficient, and economical operations of the building equipment.  

Developers should consider using proptech solutions to properly manage their M&E systems. High-tech BMS will also facilitate data tracking and analysis, which helps create long-term strategies that support sustainability and ESG targets.  

Conclusion 

The above guide delivered comprehensive solutions to saving water and electricity resources during building operations. However, developers should consider these factors before operations begin, and these solutions should be explored from the research and development phases. Savills Property Management Departments has a team of experienced specialists and best-in-class solutions that can help you move forward with your energy-saving plan.  

Please contact us for bespoke solutions to optimise your energy use.