Microreactors for Military Energy Resilience and Power Security

The Need for Energy Resilience

• ⚠️ Many mission-critical military sites still rely on diesel generators, creating significant vulnerability due to their fuel supply chains.
• 💡 The government, particularly the military, requires enhanced energy resilience for critical infrastructure to mitigate these risks.

Entares' Microreactor Solution

• 🚀 Entares is developing microreactors, tiny nuclear reactors in the hundreds of kilowatts range, specifically designed to replace diesel generators on bases or remote infrastructure.
• 🎯 The primary market is defense, where mission assurance outweighs cost sensitivity, with hyperscalers also identified as potential customers seeking 24/7 clean power.
• 🗓️ The team aims for a criticality test next year and to demonstrate a full reactor producing power by the end of 2027.

Evolving Regulatory Landscape

• ✅ The NRC mandate has changed, requiring regulators to weigh benefits alongside risks, not just safety, accelerating nuclear innovation.
• 🧩 A regulatory sandbox is emerging through Department of Energy and Department of Defense authorities, allowing innovators to iterate with national labs and derisk designs.
• 🤝 This dual track enables faster development, with the Army also having the authority to license reactors.

Supply Chain and Funding Challenges

• 📊 For a decade, only about 1% of US nuclear fuel was domestically mined, with nearly half of uranium imports coming from Russia and former Soviet states, highlighting a vulnerable supply chain.
• 💰 Bringing a reactor to market is estimated to cost hundreds of millions, funded through a mix of grants, DoD programs, and public-private commitments.
• 📈 Federal buying power is seen as crucial for catalyzing supply chains and workforce development, similar to NASA's impact on the launch industry.

Operational Realities and Company Culture

• 🚧 Entares faces challenges including recruitment, scarce suppliers for nuclear-grade materials, and unexpected costs associated with national labs and field tests.
• 🧠 Julia DeWahl applies Silicon Valley discipline to this hardware problem, emphasizing a customer-first, iterative approach.
• ✨ The company fosters a results-oriented culture focused on excellence and tangible deliveries, capable of executing complex engineering under pressure.