Editor-in-Chief, The Fusion Report
Inertia Enterprises has launched as the newest commercial fusion player with a $450 million Series A led by Bessemer Venture Partners. Co-founded by Twilio’s former CEO Jeff Lawson, NIF physicist Dr. Annie Kritcher, and fusion plant designer Prof. Mike Dunne, the company aims to scale the National Ignition Facility’s proven laser-based approach into gigawatt fusion power plants within the next decade using a thousand compact, mass-produced lasers firing at fuel targets ten times per second.
The global data center market reached $319.5 billion in 2024 and is on track to nearly triple to $988 billion by 2035, with electricity consumption projected to double by mid-decade. Natural gas currently leads as the near-term power source of choice, but nuclear fission, battery storage paired with solid-state transformers, and fusion energy are all competing for a role in the long-term supply picture. This analysis examines where each technology stands today, the tradeoffs operators face between speed-to-deploy and decarbonization, and why data center investors are already placing bets on fusion despite its longer timeline to commercial scale.
Solar energy is reshaping global power systems through rapid grid-scale deployment, advanced battery storage, and photovoltaic breakthroughs including bifacial panels and perovskite cells. While fusion energy remains the long-term solution for baseload power, solar’s modularity and speed of deployment offer critical lessons for fusion commercialization. Until pilot fusion plants come online, solar leads in filling the growing electricity gap.
The 19th-century Current Wars are getting a 21st-century sequel. As AI workloads push rack densities beyond what traditional AC distribution can efficiently handle, data center operators are turning to high-voltage DC power. The efficiency gains are substantial: DC architectures can eliminate up to 20% of energy losses while dramatically reducing the copper and cooling infrastructure required at each rack. Let’s examine the technical drivers behind the shift and who’s leading the transition.
Type One Energy’s leadership built most of the world’s stellarators over the past two decades, from Wisconsin’s HSX to Germany’s W7-X. Now operating across six locations on three continents, the company is leveraging this unmatched stellarator experience, access to superconducting magnets and exascale computing, and a “mile deep, inch wide” strategy to position itself as a fusion technology OEM rather than just another power plant developer.
Helion Energy is taking a unique approach to fusion commercialization by deliberately avoiding technological risks. With over $1 billion raised and landmark deals with Microsoft and Nucor, co-founder Anthony Pancotti explains how strategic technology choices—including aneutronic D-He3 fusion and direct energy conversion—position them to deliver the first commercial fusion plant by 2028.
Princeton Plasma Physics Laboratory spinout Thea Energy is taking a fundamentally different approach to stellarator fusion by using planar arrays of magnets controlled by software algorithms instead of complex magnet rings. CEO Brian Berzin explains how this “software-defined” magnetic confinement system relaxes engineering tolerances and enables mass manufacturing of fusion power plants. With $20M in Series A funding from investors including Hitachi, Thea plans to demonstrate Q=1 performance with its Eos system by 2030, followed by the Helios commercial plant targeting 2035 grid connection. Berzin also discusses the intensifying global competition in fusion commercialization and why stronger US government support is critical as China, Germany, and other nations ramp up their programs.
At NVIDIA’s GTC 2025 in Washington, D.C., the intersection of AI and energy became impossible to ignore. While Jensen Huang unveiled the Blackwell NVL72 with 10X performance gains and NVIDIA’s vision of AI “workers” augmenting human productivity, the energy implications loom large: AI data centers are adding billions to electricity costs while displacing white-collar jobs at unprecedented scale. This analysis explores why NVIDIA’s exponential compute growth makes fusion energy not just desirable, but essential and how the company’s philosophy on manufacturing, employment, and innovation offers a model for navigating AI’s macro-economic challenges.
Helical Fusion has successfully tested their high-temperature superconductor coils under production-level conditions, achieving stable 40kA current flow in a 7-tesla magnetic field at 15 Kelvin. This breakthrough validates their unique helical stellarator approach and kicks off construction of the Helix HARUKA integrated demonstration device. The Japanese fusion company, backed by $35M in funding, is advancing an alternative path to fusion energy that builds on decades of stellarator research at Japan’s NIFS facility.
Despite policy rollbacks under the Trump Administration, global solar deployment hit record levels in 2025. China alone installed more solar capacity than the rest of the world combined, while the U.S. dropped to third place behind India. This analysis examines why solar energy continues its explosive growth worldwide, the impact of changing U.S. policies, and what this means for the future of renewable energy and fusion power development.
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