Solx and Caelux have announced a 5-year deal to manufacture 3 GW of hybrid tandem solar modules in the US
Caelux will provide its perovskite-coated Active Glass and Suniva its silicon cells to Solx for the Aurora platform
The partners expect commercial-scale deployment of the modules by 2027
Caelux and Solx, both US-based solar PV manufacturers, have announced a 5-year strategic partnership to produce 3 GW of high-performance hybrid tandem solar modules that combine perovskite and silicon technologies.
Under the 5-year partnership, solar module manufacturer Solx will replace conventional top glass with Caelux’s energy-generating Active Glass in its Aurora modules, with silicon solar cells from Suniva forming the 2nd power generation layer. This integration is expected to increase the module’s overall electricity output.
According to the partners, combining these hybrid tandem layers enables increased efficiencies of up to 28% while delivering significantly more power than traditional silicon-only panels.
“This is a defining moment for American energy manufacturing – U.S.-made hybrid tandem is no longer a theoretical, it’s now in commercialized production,” said James Holmes, Co-Founder & CEO of Solx, which will produce these modules at its Puerto Rico fab.
“By supplying domestically produced solar cells into Solx’s Aurora platform while also incorporating Caelux’s Active Glass, we are strengthening domestic energy security, creating high-quality American jobs, and enabling the next generation of solar innovation,” stressed Suniva CEO Matt Card. The company recently announced plans to expand its solar cell production capacity in the US to 5.5 GW (see Suniva To Build New 4.5 GW Solar Cell Factory).
The Aurora modules, in their beta version, have already been contracted for use in an operational solar project in the US by an unidentified local developer. The 2 partners expect distribution of the modules in the US at commercial volumes by 2027.
For Caelux, this partnership transitions its perovskite-coated Active Glass from the laboratory and low-volume production to giga-scale deployment. In 2025, the company announced its 1st commercial delivery of Active Glass technology to an unidentified silicon solar manufacturer for use by a solar developer (see North America Solar PV News Snippets).
“While licensing has occurred in the industry, our agreement is a true production deal with volume and purchase commitments, deploying the technology to the broader market,” stated Caelux SVP of Sales Aaron Thurlow.
Recently, Tandem PV also opened its tandem solar module production fab with 40 MW capacity in the US (see Tandem PV Opens 40 MW Perovskite-Silicon Fab In US).
TaiyangNews recently concluded its 1st edition of the Virtual Conference on Next-Generation PV Technology 2026 to discuss the technology and market for silicon-perovskite tandem technologies. A live blog covered all the details. Detailed coverage of the event will follow soon on the TaiyangNews website.
