science & tech•Thu, September 17, 2026•4 min read

Why Scientists Are Taking Solar Panels 10 Meters Underwater

Researchers have successfully tested a new generation of perovskite solar cells capable of operating 10 meters below the water's surface. This breakthrough could revolutionize how we power autonomous marine drones and underwater sensor networks. It turns out the deep blue sea might be the next frontier for solar energy.

Shedding Light on the Ocean Floor

For decades, solar power has been synonymous with sun-drenched rooftops and vast terrestrial farms. However, a team of researchers led by Simin Ma at Yunnan University has challenged the conventional limits of photovoltaics. By leveraging the unique properties of perovskite materials, the team has developed solar cells that can effectively harvest energy at a depth of 10 meters, a development that could be a game-changer for marine exploration.

New perovskite technology allows solar panels to function submerged.

The Perovskite Advantage

Perovskites have long been hailed as the successor to traditional silicon solar cells due to their lower production costs and high efficiency. Their secret weapon, however, is tunability. Unlike silicon, which struggles to absorb the limited light spectrum that penetrates deep into the ocean, perovskites can be engineered to absorb the specific wavelengths of light that reach submerged environments.

Tunable properties allow for better light absorption in blue-shifted aquatic environments.
Cooler underwater temperatures may help improve the longevity of the cells.
The technology enables continuous energy harvesting for remote marine equipment.

Powering the Future of Marine Autonomy

The implications for this technology are significant. Currently, autonomous underwater vehicles (AUVs) and submerged Internet of Things (IoT) sensors are limited by their battery life, often requiring expensive or complex recovery operations to recharge. Self-charging, submerged panels could provide a perpetual power source, allowing these systems to remain deployed for extended periods without human intervention.

This work presents the first functional validation of submerged solar cells practically operating at a water depth of up to about 10 meters, greatly broadening their application scope.
— Ocean News

Key Takeaways

Researchers have successfully tested perovskite solar cells at 10 meters depth.
Perovskites can be tuned to capture light wavelengths that penetrate water better than silicon.
The technology is ideal for powering autonomous underwater drones and sensor networks.
Underwater environments provide cooler temperatures that may enhance the durability of these solar cells.
This breakthrough reduces the need for frequent battery changes in marine research equipment.

FAQ

Can these solar panels work at any depth?

No. The technology currently works at depths up to 10 meters. Beyond that, there is generally not enough light penetration for the solar cells to generate sufficient power.

Why use perovskite instead of traditional silicon?

Perovskites can be tuned to capture specific light wavelengths, making them more effective at harvesting the light available underwater compared to standard silicon panels.

How long do these panels last?

While moisture is typically destructive to perovskites, the researchers noted that the underwater environment provides cooler temperatures, which can actually help increase the lifespan of the cells.

What are the primary applications for this technology?

The primary goal is to power autonomous marine drones and submerged Internet of Things (IoT) sensors, removing the need for regular battery maintenance.