HVAC and water heating systems are major contributors to global greenhouse gas emissions, with refrigerants being a significant part of the problem. Low-GWP (Global Warming Potential) refrigerants offer an efficient solution to decarbonize these systems. In this blog, we will delve into the concept of GWP and explore why transitioning to low-GWP refrigerants in California is pivotal in the fight against climate change.
Understanding GWP and Its Significance
But what exactly is GWP, and why are low-GWP refrigerants crucial? GWP is a metric used to gauge the heat-trapping capacity of a refrigerant over a 100-year period. Specifically, the lower the GWP value, the less heat the refrigerant traps, considering its entire life cycle, from production and usage to recovery and disposal. In an effort to curb emissions, regulations mandate that refrigerants with a GWP threshold of 750 or less will be required starting in January 2024.
The Transition to Low-GWP Refrigerants
The shift away from high-GWP HFC (hydrofluorocarbon) refrigerants officially began in December 2020 with the passage of the AIM Act, which set an ambitious goal of an 85% reduction in the production and consumption of high-GWP HFCs by 2036. Responding to these regulations, manufacturers have started transitioning from high-GWP refrigerants to their low-GWP counterparts in HVAC and water heater systems.
Not a Drop-in Replacement
It’s crucial to understand that the transition to low-GWP refrigerants is not a straightforward drop-in replacement. In most cases, it necessitates additional modifications and considerations to ensure that the system operates efficiently and safely. There’s no one-size-fits-all solution, and the choice of a replacement refrigerant may vary based on specific equipment and manufacturer requirements.
How to Achieve Low GWP Refrigerant
Businesses have several methods at their disposal to achieve low GWP refrigerants:
- The straightforward approach–Switching to Low-GWP Refrigerants: Various low-GWP refrigerants are available for different applications. Selecting the right low-GWP refrigerant is essential. It’s important to consider both the specific needs of the application and its compatibility with existing equipment.
- Retrofitting Existing Equipment: Retrofitting existing equipment is a cost-effective option for businesses with substantial investments in their current systems. This process involves adapting the equipment to function effectively with low-GWP refrigerants.
- Implementing Leak Prevention and Repair Programs: Reducing refrigerant leaks is vital for emission reduction. Implementing leak prevention and repair programs can significantly improve environmental performance.
- Purchasing Recycled or Reclaimed Refrigerant: Recycled and reclaimed refrigerants are environmentally responsible options. Recycled refrigerant has been collected from existing systems and processed to meet the same standards as new refrigerant. Reclaimed refrigerant, similarly, has been cleaned and purified to meet these standards.
In addition to these methods, businesses can achieve low GWP refrigerant by adopting comprehensive refrigerant management plans. These plans should encompass policies and procedures for selecting, using, and disposing of refrigerants, along with monitoring and reporting mechanisms for emissions.
At CEDA, we’ve been serving facilities across California since August 2021, furthering energy efficiency in new construction projects. Partner with CEDA today and join us in the journey towards a more sustainable, low-GWP future for HVAC and water heating systems. Together, we can make a positive impact on the environment.
