Grenoble-based power electronics startup AlpSemi has raised €17 million to accelerate the industrialization and commercial rollout of semiconductor power switches for solid-state circuit breakers. The round was led by Yotta Capital, with participation from SE Ventures, Navitas Semiconductor and Cycle Group, bringing financial and strategic backing from investors focused on industrial technology, energy management and power semiconductors. AlpSemi plans to use the capital to expand the deployment of products intended for residential and commercial buildings, while advancing a roadmap toward 800-volt direct-current systems for AI data centers.
Funding Backs Commercial Scale-Up
The financing arrives as building operators, industrial companies and data-center developers face rising pressure to improve electricity efficiency, resilience and control. AlpSemi is developing semiconductor-based switching technologies that it says can be integrated into established power-electronics supply chains and deployed at industrial scale. Chief Executive Frédéric Dupont said the funding would accelerate the company’s semiconductor roadmap and support broader deployment of architectures designed to improve power protection and conversion.
Moving Beyond Electromechanical Protection
Solid-state circuit breakers replace conventional electromechanical components with semiconductor devices and digitally controlled functions. This approach is designed to allow faster, real-time protection and control of electrical systems, as well as support more adaptable power distribution across alternating-current and direct-current environments. AlpSemi argues that these capabilities are increasingly important as buildings add distributed energy resources, electrification expands across industries and AI infrastructure increases demand for high-density power systems.
A Vertical Technology Platform
AlpSemi says its development model extends across materials, devices and systems, forming a vertically integrated platform rather than a single-component offering. Chief Technology Officer Fabrice Letertre said the company is using wide- and ultra-wide-bandgap technologies to build a scalable product base for the emerging solid-state circuit-breaker market. Such materials can operate under higher voltages, temperatures and switching frequencies than traditional silicon technologies, characteristics that can be relevant in compact and energy-intensive electrical applications.
AS800 Provides First Commercial Entry Point
The company has introduced AS800, a semiconductor power switch intended for solid-state miniature circuit breakers operating in 110-volt and 230-volt settings. AlpSemi said the product is designed to deliver high power density in a compact format, support integration of distributed energy resources and increase flexibility in modern electrical networks. Developed through a global supply chain with international partners, AS800 is now the first product set to benefit directly from the new funding through expanded commercialization.
Targeting 800V AI Data Centers
Beyond building applications, AlpSemi is targeting high-voltage power protection systems for 800V DC architectures, which are gaining attention as AI data centers seek to handle growing computational loads more efficiently. Higher-voltage DC systems could reduce conversion losses and simplify power-delivery infrastructure, but they also require advanced protection technologies able to manage greater power density and new operational requirements. Navitas Semiconductor Chief Executive Chris Allexandre said AlpSemi’s platform is being developed for these future needs, with Navitas supporting the company as both an investor and strategic partner.
AlpSemi’s funding round places the French company in a market shaped by the converging demands of electrification, distributed generation and energy-intensive digital infrastructure. The company’s near-term focus is commercializing AS800 for building electrical systems, while its longer-term strategy depends on translating its semiconductor platform into high-voltage applications such as AI data centers and industrial power networks. Whether its technology can scale from early products into broad infrastructure deployments will depend on manufacturing execution, customer adoption and the pace at which power-distribution systems move toward digitally controlled solid-state designs.