Does solar matter?

The rising sun of on-site solar

Iron Mountain's approach to solar energy is multifaceted. At our retrofitted NJE-1 facility, a former New York Times printing plant, a massive rooftop solar array generates over 9 million kilowatts annually - demonstrating that even existing structures can be transformed into renewable energy powerhouses. But what about sites where rooftop solar isn't feasible? Our LON-1 data center in London has innovated to secure 5 MW of locally generated, carbon-free electricity from regional commercial and industrial solar installations. This highlights the importance of exploring diverse avenues for solar integration.

More than just a "nice to have"

For Iron Mountain, renewable energy is not a mere add-on; it's a core component of our energy strategy. With a goal to achieve net-zero carbon emissions by 2030, we prioritize renewable sources like solar, wind, and hydropower. While acknowledging the limitations of on-site solar—space constraints, varying energy production—we also recognize its growing economic appeal. As costs decrease, on-site solar is increasingly viewed as a requirement in construction and permitting processes.

The economic benefits of on-site solar are substantial, particularly with options like solar power purchase agreements (PPAs), which eliminate upfront installation costs. However, solar power alone cannot meet the total electricity consumption of a data center. It must be part of a broader clean energy strategy.

Key considerations for solar deployment

Placing solar panels on data centers requires careful planning. Roof space must first be allocated to essential equipment like chillers and generators. Then, assessments must be made about potential physical risks, such as roof penetrations and weight limitations. Regular maintenance and inspection of both the roof and solar systems are crucial.

The rise in on-site solar deployments is driven by several factors. It's a low-cost, accessible clean power source that helps communities decarbonize. It also supports green building certifications like BREEAM, which require responsible resource management and the use of sustainable materials.

When possible, ground-mounted solar is ideal, providing ample energy without building risks. Rooftop solar is a budget-friendly option, but may not provide enough power and could pose physical security risks if not carefully implemented. Parking canopies offer additional employee benefits but at a higher cost.

So, does solar matter? The answer is a resounding yes. As the world transitions to a more sustainable future, solar power will play an increasingly vital role in powering data centers and other energy-intensive facilities. Thoughtful planning, diverse implementation strategies, and a commitment to renewable energy are essential for realizing the full potential of solar power.