RadianX raises $5M seed to bring perovskite solar to devices
What's the deal? RadianX, formerly California Perovskite TechnologyDealroom has a profile for this one. Try Dealroom →, has raised a $5 million seed round to scale production of its certified perovskite solar modules. The round was co-led by SOSV and Twynam, with participation from One Small PlanetDealroom has a profile for this one. Try Dealroom →, Sahsen VenturesDealroom has a profile for this one. Try Dealroom →, AvilaDealroom has a profile for this one. Try Dealroom → VC, California Innovation FundDealroom has a profile for this one. Try Dealroom →, quantumEDGE, Riceberg VenturesDealroom has a profile for this one. Try Dealroom →, and Alumni Ventures.
Separately, partner Pacific Union Technology Precision Manufacturing, a listed precision components maker, is funding a dedicated production line, bringing the combined package to $9 million.
What's the endgame? The Redwood City company builds perovskite modules for edge energy — sensors, wearables, connected devices, and Physical AI. Perovskite keeps generating power in low and indoor light, where silicon falters, which could let device makers shrink batteries or skip replacements entirely.
Its modules are as thin as 0.7mm and designed to integrate into existing product surfaces.
Why now? RadianX says it has cleared the three hurdles that slowed perovskite's move to market: durability, efficiency at full-module scale, and lead safety. Its modules are among the first certified by TÜV across all three categories of IEC TS 63163, and it holds a certified 22.33% efficiency on a 1.2-by-0.6-meter module — a world record for that format at the time.
The funding backs an automated 6MW production line. "By building our first automated 6MW production line, we are creating a blueprint we can replicate at larger scale anywhere in the world," said chief executive officer Vivian Qu.
Who's joining? Gary Chen, former chief executive officer of Riverside-based 250MW solar producer SunsparkDealroom has a profile for this one. Try Dealroom →, has joined as vice president of manufacturing and product, strengthening the push from certified product to volume production.
What could go wrong? Perovskites still face durability and scale-up hurdles. Financing and a production line do not yet prove sustained commercial performance, and the open test is durability in named customer deployments.
The signal: The raise lands amid renewed investment in perovskite scale-up — Belgium's NoakDealroom has a profile for this one. Try Dealroom → recently raised about $5.6 million, and First Solar is building toward a larger pilot line. RadianX is targeting a different niche from the perovskite-silicon tandem race: lightweight modules for devices and indoor light. Its significance is less the amount than the move to dedicated production and whether the product can reach commercial customers.
Read more: prnewswire.com
Image credit: California Perovskite Technology Inc.
