How Radiant and Heron Are Rethinking Power Generation and Delivery
Summary
Radiant and Heron are addressing the critical bottleneck in American energy infrastructure: power delivery, not generation. With US electricity demand rising for the first time in decades due to data centers, electrified transport, and reshoring, existing grid infrastructure is struggling. Radiant, founded by Doug Bernauer, is developing mass-producible, portable micro nuclear reactors, targeting a trailer-sized unit that can deliver 2 million gallons of diesel equivalent power for five years, deployable within 48 hours. Heron, led by Drew Baglino, focuses on solid-state power electronics, with its Heron Link product being a 5-megawatt bi-directional solid-state transformer designed to rebuild the grid from the edge by converting DC (800-1500V) to 34,000V AC. Both companies leverage modular, factory-based manufacturing, aiming for high-volume production (Radiant: 50 reactors/year; Heron: 40 gigawatts/year) to create a more flexible, decentralized, and resilient energy system.
Key takeaway
For CTOs and infrastructure investors planning new data centers or industrial electrification projects, recognize that grid delivery, not generation, is the critical constraint. You should prioritize modular, rapidly deployable power solutions like microreactors or advanced solid-state power electronics to ensure resilient, scalable energy access. Consider integrating factory-built systems to bypass traditional grid bottlenecks and accelerate project timelines, especially for off-grid or edge applications.
Key insights
Modular, factory-built power generation and distribution technologies are key to solving grid delivery bottlenecks and enabling decentralized energy.
Principles
- Delivery, not generation, is the grid's primary bottleneck.
- Factory-based modular manufacturing improves quality and cost.
- Decentralized, software-defined grids enhance resiliency.
Method
Radiant mass-produces portable microreactors in a factory for rapid, 48-hour on-site deployment. Heron employs solid-state transformers with semiconductors and software for high-frequency, modular power conversion.
In practice
- Deploy microreactors for off-grid power at military bases.
- Use solid-state transformers for data center grid integration.
- Establish DC microgrids combining solar, batteries, and nuclear.
Topics
- Micro Nuclear Reactors
- Solid State Power Electronics
- Energy Grid Modernization
- Data Center Power
- Modular Manufacturing
- Decentralized Energy
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Editorial summary, takeaway, and curation by AIssential. Original article published by The a16z Show.