The Elements of Innovation Discovered
Metal Tech News – September 14, 2026
PyroDelta Energy is developing a tellurium-based thermoelectric film designed to generate supplemental electricity from conventional solar panels when sunlight is reduced or unavailable.
Extending its tellurium-based thermoelectric technology into solar power, First Tellurium Corp. subsidiary PyroDelta Energy is developing a thin film designed to generate supplemental electricity from conventional solar panels during periods of reduced or no sunlight.
Even as solar has become a major source of new electricity generation, its productive window remains tied to available sunlight, creating an opening for technologies that can extract additional power from the same installed infrastructure beyond peak daylight conditions.
One route toward extending that productive window is to pair conventional photovoltaic generation with a second process that can respond to conditions the solar cells themselves do not use, adding output without changing how the panels capture sunlight.
Fitting that role, thermoelectric generation converts temperature differences directly into electricity through solid-state materials without moving parts, allowing panels to draw on thermal energy when sunlight alone is no longer producing as much power.
Built around that process, PyroDelta’s tellurium-based thermoelectric technology traces back to development work underway since at least 2016 and has since expanded across applications ranging from vehicles and data centers to heavy-lift drones.
Turning the same approach toward solar installations, the company is now developing a thermoelectric film that could be applied to the back of conventional photovoltaic panels without requiring changes to their basic design or supporting infrastructure.
Instead of competing with the photovoltaic cells that generate electricity from sunlight, the film is intended to operate alongside them by capturing temperature differences between the panel surface and its surrounding thermal environment, including heat retained and radiated from the ground.
That distinction could allow an installation to continue producing some electricity as solar irradiance falls or disappears, provided enough of a temperature differential remains for the thermoelectric material to operate.
“We estimate our thermoelectric film is about 11% to 12% efficient,” said PyroDelta Head Engineer Michael Abdelmaseh. “Conventional solar panels today typically operate at efficiencies of about 20% to 22%. Our objective is not to replace photovoltaic generation, but to complement it by capturing energy from temperature differentials when solar irradiance is low or unavailable.”
Still at an early stage of development, the concept is being designed around conventional solar hardware rather than a new panel architecture, opening the possibility of incorporating the film into new installations or applying it to existing systems if further development and testing prove the technology viable.
For PyroDelta, however, advancing the solar concept remains secondary to its current effort to commercialize a heavy-lift drone platform built around the same broader thermoelectric technology.
Earlier this year, the company applied its heat-to-power platform to a heavy-lift drone design developed for the U.S. Defense Advanced Research Projects Agency Lift Challenge, integrating thermoelectric generation into an effort to generate supplemental electricity and extend aircraft range.
“Michael has been developing the solar concept for some time,” said First Tellurium President and CEO Tyrone Docherty. “Our immediate focus remains the drone technology, which we believe represents the most direct path to commercialization and an important opportunity to demonstrate the broader potential of our thermoelectric technology. As we establish markets for the drones, we intend to advance other applications, including solar.”
Positioned behind that near-term drone effort, the solar film adds another potential application for the company’s thermoelectric platform, with development now focused on whether temperature differences already present around conventional photovoltaic panels can be harvested without requiring fundamental changes to the installations themselves.
Powered by ROAR Online Publication Software from Lions Light Corporation
© Copyright 2026
