Enerabia and Clearsun Energy Partner to Scale Micro-CPV
The companies intend to establish gigawatt-scale manufacturing capacity for high-efficiency solar optics by 2030.
Updated on Oct. 27, 2026 in Energy
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Enerabia and Clearsun Energy have signed a memorandum of understanding to commercialize Micro-CPV solar technology. The partnership intends to move the research-stage optics technology toward gigawatt-scale production.
Why it matters
The collaboration aims to shift solar power economics by scaling a technology that reportedly offers a significantly lower manufacturing carbon footprint than traditional silicon modules.
Micro-CPV systems utilize concentrating optics to focus sunlight onto miniature multijunction solar cells, which are designed to capture more energy than standard silicon. The process yields a 50% lower carbon footprint than traditional silicon-based photovoltaics.
The players
Enerabia
An energy company providing manufacturing infrastructure and project development capabilities for large-scale power initiatives.
Clearsun Energy
A Freiburg-based spin-off of the Fraunhofer Institute for Solar Energy Systems ISE focused on developing Micro-CPV optical technology.
The details
Micro-CPV—or micro-concentrating photovoltaics—works by using small, precise optical components to focus high-intensity sunlight onto high-efficiency multijunction solar cells. Multijunction cells consist of multiple semiconductor layers, each optimized to convert a specific part of the solar spectrum into electricity. By concentrating light onto these tiny cells, the technology increases efficiency while reducing the amount of semiconducting material required, which contributes to its lower manufacturing carbon footprint.
Timeline
October 25, 2026: The memorandum of understanding was signed in Berlin.
2030: Target year for Clearsun Energy to reach 1 GW of annual manufacturing capacity.
The Tech Race
The partnership marks the transition of a spin-off from the Fraunhofer Institute for Solar Energy Systems ISE into large-scale commercial manufacturing. This move aims to bridge the gap between niche concentrating optics and the mass-market dominance of silicon photovoltaics.
The companies plan to establish gigawatt-scale manufacturing capacity within five years, aiming for a 2030 target. Users can expect the technology to remain in development until these manufacturing facilities are operational.
The takeaway
The move suggests a concerted push to bring specialized high-efficiency solar hardware into direct competition with standard silicon. Watch for the 2030 milestone to confirm if the partners reach their 1 GW manufacturing capacity goal.
Further reading
For broader trends in renewable power hardware, see Energy.
Source note: This article includes information reported by Renewables Now.
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