June 16, 2025

News

Why America's largest tower company is betting on next-generation solar

By

Joel Jean

Swift Solar announced its strategic partnership with American Tower (ATC) to evaluate Swift Solar's perovskite tandem technology. ATC operates 42,000 communications sites in the US, presenting a major opportunity for distributed solar deployment. 

Today we announced our strategic partnership with American Tower Corporation (ATC) to evaluate Swift Solar's perovskite tandem technology. ATC operates 42,000 communications sites in the US, presenting a major opportunity for distributed solar deployment. 

This collaboration reflects growing commercial interest in technology pioneered by our founders—technology behind today’s world-record tandem solar cells. Now we’re scaling it up for deployment with one of the world’s largest infrastructure operators.

This is an exciting opportunity for Swift and an important signal for the future of solar. Beyond leveling up traditional solar projects, we’re exploring how perovskites can make critical infrastructure more efficient, more sustainable, and more resilient in an era of unprecedented energy demand.

The Power Bottleneck for Critical Infrastructure 

Our world today runs on communications networks. The explosion of AI, IoT, and cloud services is straining the systems that support digital connectivity. And power is the critical bottleneck. 

After nearly two decades of flat US power demand, our hunger for electrons is on the rise,  accelerated by AI workloads. Data centers could consume 9% of all US power by 2030, up from 3% in 2022. That is, if the grid can keep up. In major markets like Northern Virginia, grid constraints are already creating multi-year delays for new data center connections. Nationwide, up to 20% of planned facilities could be delayed due to grid issues.

ATC’s 149,000+ global sites each require reliable power in increasingly constrained footprints. Each of these sites is an opportunity to rethink how we power critical infrastructure more efficiently and more sustainably. 

Where Conventional Solar Falls Short

Solar is clearly part of the solution for businesses looking to add new power fast. It’s already dominating new energy buildouts. Solar accounted for nearly 80% of utility-scale generation capacity (~60% of power capacity) added to the US grid in 2024.

But traditional solar panels hit a wall when space is tight. They simply can’t deliver enough energy per area to meet the growing needs of modern infrastructure. When you're constrained by real estate, every square foot matters. A 20% boost in panel efficiency means 20% more power from the same footprint—or the ability to power 20% more critical systems without expanding infrastructure.

The Perovskite Edge

This is one reason we’ve spent years perfecting perovskite tandem technology. Our breakthrough cells deliver significantly more power per square foot, making them ideal for applications where space is at a premium.

Consider the numbers. Perovskite-silicon tandem cells have achieved record efficiencies of 34.8% in 2025, compared to 27.3% for record silicon cells and ~20% for standard solar panels today. That's a 30% jump in power output from the same footprint. Perovskites also use far less material—up to 400x less than traditional silicon—and are manufactured with simpler, lower-temperature processes. This reduces both cost and environmental impact while unlocking higher performance. 

A Strategic Shift

ATC’s decision to evaluate our technology reflects a broader trend. Forward-thinking businesses are realizing that high-efficiency solar can help enhance site resilience and performance. 

For Swift, this partnership provides more than validation. It offers critical feedback and insights into how perovskites scale for real-world deployment across diverse, space-constrained sites. More importantly, it signals that perovskite technology is entering the next phase of field evaluation. Our work with ATC focuses on what really matters: long-term stability, ease of installation, and field performance—not just record efficiencies.

Unlocking the Full Potential of Solar Energy

With American Tower, we’re evaluating how perovskites perform in mission-critical applications—and proving that our differentiated approach to tandem technology and manufacturing is on track for commercial deployment.

This is just the beginning. Data centers, edge computing facilities, and distributed systems all face similar constraints. The infrastructure operators who solve for power first will capture the AI boom. The ones who don't will watch from the sidelines.

For Swift Solar, partnerships like this are a clear sign that perovskite tandem technology is moving from development to deployment. We’re excited to unlock the future of solar together.