Designing a new construction to be net zero is challenging, but electrifying existing lab facilities is even more difficult. Electrifying buildings is crucial for decarbonizing the built environment, particularly in energy-intensive spaces like laboratories. However, laboratories present unique challenges due to their high energy demands. To make electrification feasible in these critical spaces, adopting an "energy efficiency first" approach is essential. Below are four key strategies that lab or energy managers should implement to achieve building electrification and net zero designs.

1. Target a reduction in reheat

Reheat is a major contributor to energy consumption in laboratory buildings due to higher ventilation rates. Optimizing ventilation rates and decoupling cooling from the airflow are two primary design strategies for targeting a reduction in reheat. Implementing energy-efficient design measures can significantly reduce the need for reheat and have huge impact upstream from zone level controls. Understanding what’s driving reheat requirements is key in existing facilities and an important design consideration for new builds.  

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2. Optimize airflow

Aircuity

One of the most effective ways to reduce energy consumption/reheat in labs is by optimizing airflow. Traditional ventilation systems often over-ventilate spaces to ensure safety, leading to unnecessary energy use. A demand control ventilation platform provides a solution by monitoring indoor air quality (IAQ) and adjusting airflow in real-time based on actual needs. For instance, when an "event" occurs impacting IAQ, the system can temporarily increase ventilation to clear contaminants, then reduce airflow once the air is clean. This approach maintains a safe lab environment but also cuts down on energy use by avoiding excessive ventilation. In many cases, optimizing airflow can reduce reheat demand by up to 80 percent, paving the way for efficient electrification sizing and many times making it possible.

3. Rightsize new systems for building infrastructure

As energy efficiency measures are implemented, the energy load profile of the building changes. This shift allows for the rightsizing of new electrified HVAC systems. Rightsizing involves selecting equipment that matches the building's new energy needs, rather than purchasing larger equipment based on the previous, higher baseload requirements. Smaller equipment saves the building owner upfront cost, reduces monthly utility bills and maintenance expenditures. Optimizing airflow alone has a significant impact on baseload requirements and data shows that building owners who have completed airflow optimization up front can save up $5 in future electrification costs on every $1 spent on airflow optimization.

4. Implement new strategies in equipment and infrastructure 

Having a reduced energy load also now allows for new renewable and more efficient supply strategies. With lower base operating loads, smaller electric boilers and chillers can now be utilized with a much larger portion being supported by renewable sources that have also been downsized. Now, advanced energy management systems can be deployed to monitor and control energy use, ensuring that the building operates at peak efficiency optimized with renewable sources. The implementation of these strategies not only supports electrification but also enhances the building’s resilience and sustainability in the long term.

Lab building electrification and net zero is possible today

Achieving building electrification, especially in energy-intensive spaces like laboratories, requires a strategic approach that prioritizes energy efficiency. By targeting a reduction in reheat, transitioning to all-electric systems, optimizing airflow in real-time, rightsize new systems, and implementing innovative equipment strategies, building owners can successfully navigate the challenges of electrification. The result is not only a more sustainable and cost-effective building but also a significant contribution to global decarbonization efforts. Remember, every dollar invested in energy efficiency today can save multiple dollars in future electrification costs, making this approach both environmentally and economically sound.

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