TeraWatt Lands Major Funding, Forging Alliances to Power the Future Grid

SAN FRANCISCO, CA – April 08, 2026 – TeraWatt Technology Inc., a developer of advanced lithium-ion batteries, announced today the final close of its Series C funding round, securing a significant capital injection underscored by strategic partnerships with major global energy companies. The move signals a pivotal shift from pure research and development to industrial-scale production and deployment, aiming to address pressing global needs for energy security and decarbonization.

While the round includes backing from prominent venture firms like Khosla Ventures and Temasek, its defining feature is the deep integration with new investors from the energy sector. Japanese power giants Kyuden International Corporation and JERA Co., Inc. have joined the round, not just as financiers, but as partners in formal capital and business alliances. They are joined by other strategic Japanese investors, including Japan Green Investment Corp. for Carbon Neutrality (JICN) and ITOCHU Technology Ventures, Inc., pointing to a coordinated effort to build a new, resilient battery value chain.

These alliances are designed to create an end-to-end ecosystem, leveraging TeraWatt's next-generation battery technology with the immense infrastructure and market access of its partners. The proceeds are earmarked for the company's first mass production facility, enabling a phased expansion of manufacturing capacity to meet the burgeoning demand for grid-scale energy storage.

A New Blueprint for Battery Deployment

This funding round represents a departure from the traditional model of a tech startup simply raising capital. TeraWatt is building a collaborative framework intended to accelerate every stage of the battery lifecycle. The alliance with Kyuden International will focus on jointly exploring battery storage business opportunities, with an initial focus on Japan before expanding globally. The partnership with JERA, Japan's largest power generation company, is even more comprehensive, encompassing a stable supply of grid-scale battery cells, the commercialization of new energy services, and the optimization of the entire battery value chain.

This integrated approach is designed to overcome the significant hurdles that often prevent innovative technologies from reaching mass market adoption. By partnering directly with the end-users and operators of large-scale energy infrastructure, TeraWatt aims to streamline its path from factory floor to grid integration.

"Completing our Series C final close marks a pivotal moment for TeraWatt," said Ken Ogata, Ph.D., Co-founder and CEO of TeraWatt Technology. "Amid rising geopolitical tensions — particularly in the Middle East — energy security and decarbonization have never been more critical. The capital and business alliances with leading energy companies bring us closer to our vision of delivering end-to-end value — from manufacturing through deployment. By combining our next-generation battery technology with our partners' deep energy infrastructure expertise, we are building a future where the batteries society needs are delivered at scale."

The Technology Fueling the Future

At the heart of this strategic push is TeraWatt's proprietary battery technology. Described as lightweight, high-power, and safe, the company's innovations aim to solve the core challenges of existing lithium-ion batteries. While specific details of its chemistry are closely guarded, the company's extensive patent portfolio—with over 250 global patents—points toward significant advancements in solid-state and anode-free battery designs.

Patents filed by the company reveal a focus on preventing dendrite formation, a notorious issue that can cause short circuits and safety hazards in lithium-ion batteries. Other patents describe methods for creating high-energy-density cells with excellent cycle characteristics, meaning they can be charged and discharged many times without significant degradation. This work on what appears to be hybrid or full solid-state technology is crucial, as it promises batteries that are not only safer and more powerful but also have a longer operational life—a critical factor for grid-scale applications where reliability is paramount.

These advancements place TeraWatt in a fiercely competitive field alongside other advanced battery developers like QuantumScape, Northvolt, and the industry giant CATL. However, by securing strategic off-takers and deployment partners at this early stage, TeraWatt is betting that its collaborative model will provide a decisive commercial advantage.

Batteries as Strategic National Assets

The CEO's reference to geopolitical tensions is not hyperbole. Across the globe, governments are increasingly viewing advanced battery technology as a cornerstone of national security. The ability to store energy is fundamental to ensuring the resilience of a nation's power grid, especially as it becomes more reliant on intermittent renewable sources like wind and solar. Battery storage systems can provide instantaneous backup power to critical infrastructure—such as hospitals, data centers, and communication networks—during grid outages, natural disasters, or cyberattacks.

Furthermore, the global supply chain for batteries is highly concentrated, with a few countries dominating the processing of critical minerals and the manufacturing of cells. This creates vulnerabilities that nations like the United States and Japan are actively seeking to mitigate. By investing in and fostering companies like TeraWatt, they aim to build more secure, resilient, and geographically diverse supply chains for what is now considered essential technology for both economic prosperity and defense readiness.

Japan's Strategic Bet on Energy Independence

The heavy involvement of Japanese corporations and government-affiliated funds in this round is a clear indicator of a national strategic imperative. Investors like the Japan Bank for International Cooperation (JBIC), the GX Acceleration Agency, and the Japan Green Investment Corp. for Carbon Neutrality (JICN) are not typical venture capitalists; their mandates are tied to Japan's long-term economic and energy goals.

This investment aligns perfectly with Japan's ambitious "Green Transformation Initiative," a plan to achieve carbon neutrality by 2050 while bolstering energy security. A key pillar of this strategy is to build out 150 GWh per year of domestic and allied battery manufacturing capacity by 2030. By backing TeraWatt, these entities are not only investing in a promising technology but are also helping to secure a future supply of the advanced batteries needed to modernize Japan's grid and reduce its dependence on foreign energy and technology.

The global market for grid-scale battery storage is projected to grow exponentially, with some estimates reaching hundreds of billions of dollars within the next decade. As TeraWatt moves to establish its mass production capabilities, its unique blend of cutting-edge technology and deep strategic partnerships positions it to capture a significant share of this critical and rapidly expanding market.