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What are the challenges and benefits of using BMS for circadian lighting in different settings?

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Circadian lighting is a type of lighting design that mimics the natural cycle of daylight and darkness, and aims to support the health and well-being of building occupants. Building management systems (BMS) are software platforms that monitor and control various aspects of a building's performance, such as energy efficiency, security, and indoor environmental quality. In this article, we will explore the challenges and benefits of using BMS for circadian lighting in different settings, such as offices, schools, and healthcare facilities.

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1 Why circadian lighting matters

Circadian rhythms are the biological processes that regulate our sleep-wake cycle, hormone levels, body temperature, and other functions. They are influenced by external cues, such as light and temperature, as well as internal factors, such as genetics and lifestyle. Exposure to natural light during the day and darkness at night helps to synchronize our circadian rhythms with the environment, which can improve our mood, alertness, productivity, and overall health. However, many modern buildings have artificial lighting that does not vary in intensity, color, or direction throughout the day, which can disrupt our circadian rhythms and cause negative effects, such as insomnia, fatigue, stress, and depression.

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2 How BMS can support circadian lighting

BMS can provide a solution for implementing circadian lighting in buildings, by integrating sensors, controllers, and actuators that can adjust the lighting parameters according to the time of day, the season, the weather, and the occupancy. BMS can also collect and analyze data on the lighting performance, the energy consumption, and the user feedback, which can help to optimize the lighting design and operation. BMS can also enable remote access and control of the lighting systems, which can increase the flexibility and convenience for the building managers and occupants.

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3 What are the challenges of using BMS for circadian lighting

Despite the potential benefits of using BMS for circadian lighting, there are also some challenges that need to be addressed. One of the challenges is the lack of standardized protocols and metrics for measuring and evaluating the circadian impact of lighting. Different studies and models may use different parameters and methods, which can make it difficult to compare and validate the results. Another challenge is the diversity of user preferences and needs, which may vary depending on the age, gender, culture, activity, and health status of the occupants. BMS should be able to accommodate and balance the individual and collective preferences and needs, as well as the organizational and regulatory requirements. A third challenge is the cost and complexity of installing and maintaining the BMS and the lighting systems, which may require skilled professionals, specialized equipment, and regular updates.

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Logan Bryant

Vice President @ Salas O'Brien | Data Center Design & Construction
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BMS can be very cost effective for cutting annual energy costs and providing convenience for maintenance employees via remote visibility. Organizations with relatively predictable occupancy schedules and trained maintenance crews like schools, large office buildings, and professional sports venues are ideal candidates for BMS. However, it’s extremely important for the consultant team to work closely with the owner to understand their specific needs and expectations. Increased controls/monitoring means more variables for staff to consider when future troubleshooting occurs. Client education and proper training before and sometimes even after is a key element of a successful project for both client and consultant!

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4 What are the benefits of using BMS for circadian lighting

Despite the challenges, using BMS for circadian lighting can also bring many benefits for different types of buildings and occupants. One of the benefits is the improvement of the indoor environmental quality, which can enhance the comfort, satisfaction, and well-being of the occupants. Studies have shown that circadian lighting can improve the sleep quality, mood, cognitive performance, and immune system of the occupants, which can also reduce the absenteeism, turnover, and healthcare costs. Another benefit is the reduction of the energy consumption and the carbon footprint, which can contribute to the sustainability and efficiency of the buildings. BMS can optimize the use of natural light and artificial light, as well as dimming, switching, and color tuning, which can save energy and money. A third benefit is the differentiation and innovation of the building design and operation, which can increase the value and attractiveness of the buildings. BMS can create dynamic and customized lighting scenarios that can suit different functions, events, and atmospheres, which can also enhance the aesthetic and experiential quality of the buildings.

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5 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?

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What are the challenges and benefits of using BMS for circadian lighting in different settings?

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1 Why circadian lighting matters

2 How BMS can support circadian lighting

3 What are the challenges of using BMS for circadian lighting

4 What are the benefits of using BMS for circadian lighting

5 Here’s what else to consider

Building Management Systems

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