Sustainability within data center operations is often associated with capital-heavy initiatives like new cooling systems and low-carbon materials. However, it’s important not to overlook other operational decisions that can be made with minimal investment yet lead to significant results.
A few years ago, the leadership at Prime Data Centers was tasked with identifying meaningful changes to reduce environmental footprints that would not require major capital outlay. This led to the consideration of hydrotreated vegetable oil (HVO) as an alternative to conventional diesel for backup generators.
The Operational Benefits of HVO
HVO, unlike traditional diesel, is shelf-stable, meaning it does not separate or accumulate water, which eliminates the need for annual fuel polishing—an often time-consuming maintenance task. This alone can lead to substantial cost savings; annual fuel polishing can reach into the six figures across a multi-site fleet, costs that are significantly reduced with HVO. Moreover, HVO burns cleaner, producing less soot and resulting in cleaner injectors and combustion chambers over time, which is crucial for equipment that must perform flawlessly whenever needed.
The operational and financial advantages of switching to HVO form a strong case. While sustainability benefits are important, in budget discussions, the direct reduction in maintenance costs and improved equipment cleanliness are often more convincing.
The Environmental Impact
The environmental benefits of HVO are significant, with lifecycle greenhouse gas emissions potentially 70% lower than those of conventional diesel. HVO also generates fewer pollutants, such as carbon monoxide and particulate matter, enhancing local air quality.
Addressing Supply Constraints
A notable challenge in adopting HVO is its distribution infrastructure, which is not yet fully developed. In some markets, it may not be available, especially during emergencies. Therefore, organizations considering HVO should maintain alternative arrangements with conventional diesel suppliers.
Embracing HVO by operators can send important demand signals to distributors, encouraging them to invest in infrastructure. This proactive approach can accelerate the maturation of distribution networks.
Building Internal Support
For organizations to transition to HVO, it’s vital to involve various stakeholders by presenting a solid financial model, validating engineering compatibility, and gaining support from both operations and sustainability teams. This approach centers on three main points: reduced polishing and cleaner engines, direct cost savings, and environmental improvements. Each of these can appeal to different stakeholders, turning a niche fuel option into an organizational priority.
Operators interested in making this switch should first analyze their fuel polishing expenses while simultaneously laying out the potential emissions benefits. The transition to HVO is straightforward as it requires no modifications to existing generators.
Challenging Assumptions
Often, sustainability initiatives in the industry focus on capital-intensive projects, whereas significant improvements can also occur in operational practices that have long been overlooked. Fuel selection is one such underexamined area. Transitioning to HVO does not necessitate new facilities, additional budget approvals, or new technologies—just a discussion with suppliers and a new perspective on a long-established assumption.
In conclusion, reevaluating fuel needs could lead to operational efficiencies and sustainability gains for data centers, offering a pathway to a greener future without the burden of extensive capital investment.
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