Peak Nano and E&P Technologies partner to develop fusion‑grade capacitors and anchor U.S. pulsed power supply chain

Pulsed power fields enabled by NanoPlex HDC capacitors for high-rep-rate fusion drivers

(Image courtesy of Peak Nano)

Peak Nano and E&P Technologies have announced a manufacturing partnership to develop high energy density capacitors for fusion drivers and related pulsed power applications, combining Peak Nano’s nanolayered dielectric film platform with E&P’s automated production and qualification capabilities through a U.S.-based manufacturing and qualification footprint.

At the centre of the collaboration is Peak Nano’s NanoPlex HDC film, built by coextruding multiple polymer materials in precisely controlled nanoscale layers. Engineering each interface at that scale allows the resulting composite to exceed the electrical, thermal and mechanical limits of conventional biaxially oriented polypropylene, the polymer dielectric that still underpins most commercial capacitor designs. The platform stores up to four times more energy per unit volume than BOPP, operates at higher temperatures and sustains lower dissipation factors under repeated discharge, characteristics that matter directly to fusion developers building high‑repetition‑rate drivers that must survive millions of pulses over a plant’s operating life.

E&P Technologies high-reliability capacitor modules for pulsed power applications

(Image courtesy of E&P Technologies)

E&P Technologies has adopted NanoPlex HDC as the foundation for a new capacitor family targeting fusion drivers, long‑life pulsed power systems, and aerospace and aviation platforms with comparable stress profiles. The company brings automated manufacturing lines, established qualification workflows and a track record supplying pulsed power hardware to customers including Xcimer Energy and Blue Origin. The partnership is structured as a co‑development engine rather than a single product programme, designed to carry new dielectric stack architectures from concept through rapid prototyping and system‑level validation on compressed timelines.

Peak Nano CEO Jim Welsh has described fusion as a trillion‑dollar supply chain opportunity by 2050, with capacitors among the pacing items that will determine how quickly driver concepts move from laboratory experiments to commercial‑scale plants. E&P CEO Caroline Sorrick has pointed to the performance ceiling of incumbent film technologies as the commercial problem the NanoPlex platform solves, while noting that the material remains compatible with automated, scalable production. Peak Nano holds more than 20 global patents protecting the NanoPlex architecture and has built its supply chain within allied nations to reduce exposure to foreign suppliers.

The partnership sits within a policy environment that has become explicitly supportive of domestic capacitor manufacturing. FY26 appropriations language directed continued support for U.S.-based nanolayer capacitor film production to reduce reliance on foreign supply. Executive Orders 14005 and 14017 on domestic content and secure supply chains, the proposed Fusion Manufacturing Parity Act, and expanded 45X advanced manufacturing tax credits collectively strengthen the case for keeping this part of the value chain in U.S. facilities. Andrew Holland, CEO of the Fusion Industry Association, has connected component‑level manufacturing capacity of this kind directly to U.S. ambitions in commercial fusion, arguing that reactor leadership is not possible without resilient access to enabling technologies including pulsed power capacitors.

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