Focused Energy raises whopping $240M Series A for laser-powered fusion tech

In a significant boost to the fusion power sector, Focused Energy has raised an oversubscribed $240 million Series A round, marking one of the largest early-stage investments in a fusion startup to date. The new funding brings the company's total private capital raised to $300 million, in addition to $200 million in grants, solidifying its position as one of the most heavily funded fusion startups. The Germany-based company is pioneering a reactor that leverages lasers to compress fusion fuel, an approach known as inertial confinement.

This involves firing lasers at a fuel target, which compresses under the intense pressure to create conditions conducive to fusion. When the atoms within the fuel fuse, they release substantial amounts of energy. Focused Energy's design is informed by the experiment conducted at the National Ignition Facility at the Lawrence Livermore National Laboratory in California.

This experiment successfully achieved a controlled nuclear fusion reaction that released more energy than it took to initiate. Debbie Callahan, who played a crucial role in designing the fuel target at the National Ignition Facility, joined Focused Energy in December as its chief strategy officer. At Focused Energy, Callahan is working to simplify the fuel target.

The National Ignition Facility's target is complex and challenging to manufacture, with the facility firing approximately 400 shots per year. In contrast, Focused Energy aims to achieve 10 shots per second, or around 864,000 shots daily. One key simplification involves eliminating the hohlraum, a precision-engineered gold cylinder that converts laser energy into X-rays, instead adopting a 'direct drive' laser system that directly compresses the fuel pellet.

The company plans to construct its inaugural demonstration system, Lighthouse, at the site of a decommissioned nuclear fission power plant in Germany, previously operated by the utility RWE. RWE was the primary investor in the Series A round, which also saw participation from the German Federal Agency for Breakthrough Innovation (SPRIND), Prime Movers Lab, and the European Innovation Council Fund. The fusion industry has garnered significant investor interest this year, with notable funding rounds including Thea Energy's $100 million to develop its pixel-inspired fusion reactor, Inertia Enterprises' $450 million Series A, and Type One Energy's nearly $90 million towards a $250 million Series B.