Tensor Energy, an operation platform for renewable energy and storage batteries, raises 950 million yen in Series A round, bringing total funding to 1.7 billion yen

Series A round closed with Global Brain, Globis Capital Partners, and Delight Ventures as underwriters

Overview of Funding

Tensor Energy Inc. (Headquarters: Fukuoka City, Fukuoka Prefecture; Representatives: Nana Hori, Vincent Filter), which develops cloud services that automate the operation and financial management of solar power plants and storage batteries using AI, has completed a Series A round of funding totaling 950 million yen, with Global Brain, Globis Capital Partners, and Delight Ventures as underwriters. Globis Capital Partners and Delight Ventures have made additional investments following the previous round.

The raised funds will be used to strengthen the functional development of the flagship product "Tensor Cloud," establish sales, marketing, and corporate structures, and increase personnel, including the recruitment of executives.

Amount raised: 950 million yen

Cumulative amount raised: 1.7 billion yen

Round: Series A

Underwriters: Global Brain, Globis Capital Partners, Delight Ventures

The Challenges We Face

Soaring electricity prices have become a serious problem for both households and businesses. Behind this is Japan's unique vulnerability: its dependence on imported fuels. With an energy self-sufficiency rate of only about 13% (FY2022, Agency for Natural Resources and Energy), geopolitical risks such as the situation in the Middle East directly impact electricity prices in Japan. Expanding renewable energy is the most important issue for changing this structure.

On the other hand, with the rapid spread of solar power generation, a new problem has emerged: "inability to use all the electricity generated." During times of low demand, such as sunny afternoons, generation often exceeds demand, leading to the unavoidable curtailment of solar and wind power generation, which is becoming commonplace nationwide. On March 1, 2026, the Tokyo area, which had previously been unaffected by curtailment, experienced its first curtailment, marking the era when curtailment is implemented in all 10 areas nationwide. The amount of curtailment continues to increase (Agency for Natural Resources and Energy, "Long-term Outlook for Renewable Energy Output Control, etc." March 16, 2026), and the fact that domestically generated electricity using fossil fuels is being wasted without being used is an unacceptable loss from both an energy security and economic rationality perspective.

The core of the solution is storage batteries. By storing surplus electricity and releasing it when needed, renewable energy can be utilized without waste. Furthermore, from April 2026, institutional reforms will be implemented to allow small-scale storage batteries and power plants to participate in the electricity supply-demand adjustment market. In March of the same year, the "Bill to Amend the Electricity Business Act" was also approved by the Cabinet, and the legal foundation for the market was established. Just as the financial Big Bang opened up securities trading to the general public and rapidly increased trading volume, Japan's electricity market is now at a historic turning point where all players, not just power companies but also general companies, small and medium-sized businesses, and individuals, can participate, and trading volume is expected to expand explosively.

To benefit from this transformation, a sophisticated platform capable of centrally managing distributed power plants and storage batteries nationwide in real-time and responding to complex market rules is indispensable. "Tensor Cloud," developed by Tensor Energy, solves this problem using AI. By integrating functions necessary for power generation businesses, from power generation forecasting to revenue and expenditure management, optimal operation of storage batteries, and response to market transactions, into a single cloud, it maximizes the value of renewable energy.

About Tensor Energy

Tensor Energy develops and provides "Tensor Cloud," an AI-driven cloud platform that supports this transformation. It integrates functions required by power generation businesses into a single platform, from power generation forecasting to revenue and expenditure management, optimal operation of storage batteries, and response to the supply-demand adjustment market.

Currently, our SaaS is implemented in over 800 power plants, and we have 21 months of operational experience with solar-plus-storage batteries.

It has been adopted by many major operators that rank high in domestic renewable energy generation capacity and storage battery capacity, including power generation operators with origins in major leasing/finance, infrastructure, and real estate, independent operators transitioning from FIT to FIP, and power aggregators. Currently, over 30 power generation operators and aggregators are utilizing it, and in addition to additional installations due to the expansion of existing customers' Tensor Cloud usage facilities, new installations for a wide range of operators are also accelerating.

We aim for a world where sustainable energy can be delivered to everyone and future generations, when and where it is needed. With the mission of creating the next-generation digital infrastructure for electricity, we support companies engaged in renewable energy power generation businesses to efficiently operate and manage their widely distributed power plant and storage battery portfolios throughout their entire lifecycle, through human-centered design, cutting-edge technology, and partnerships.

◼️Future Outlook

In response to the opening of the electricity market, inquiries have surged. We will utilize the funds raised to promote the following in particular:

・ Strengthening recruitment and organizational expansion: We will establish sales systems for expanding our customer base, service delivery systems to meet surging customer needs, and corporate systems to support rapid growth, while also promoting executive recruitment to strengthen our management foundation.

・ Accelerating product development: We aim to achieve fully automated asset management, from automated operation of storage batteries using data and AI, and accelerate the development and provision of unique functions that anticipate institutional reforms and market changes, evolving into the next-generation digital infrastructure for electricity.

・ Expanding business domains: Leveraging the operational know-how and data cultivated with Tensor Cloud, Tensor Energy will acquire, operate, and manage power plants in an integrated manner, and further develop its business from an operation platform for electricity infrastructure to a digital foundation for the entire energy industry, with a view to forming energy asset funds.

Investor Comments

Torakichi Miyako (General Partner), Takuya Ukai (Director), Global Brain

Torakichi Miyako (General Partner), Global Brain

Takuya Ukai (Director), Global Brain

Tensor Energy is a rare team with specialized expertise and execution capabilities, bringing together members under Ms. Hori's deep industry knowledge and Mr. Filter's strong commitment to product. Even in Japan's rapidly changing electricity market, their development and execution capabilities to continuously evolve their product and always provide optimal services are remarkable. We are confident that Tensor Cloud will become an indispensable infrastructure system for power generation businesses in the near future, and Global Brain will fully support its realization.

Tatsuya Nakamura (Principal), Globis Capital Partners

Tatsuya Nakamura (Principal), Globis Capital Partners

Amidst the recent geopolitical backdrop, the importance of domestic energy is increasing, and the renewable energy market is undergoing a major transformation with the transition from FIT to FIP/PPA and the acceleration of storage battery adoption. Tensor Energy's unique platform supports the development, operation, and optimization of power generation assets in an integrated manner, with AI optimized for each asset operating individually. Its high transparency and flexibility are designed to accurately respond to the management environment of distributed and large-scale assets, which will accelerate in the future. Existing customers with top-class asset scales in Japan, who highly value these features, are steadily expanding their usage, clearly demonstrating its scalability and track record. We feel great potential in the company's challenge to innovate social infrastructure and will fully support it as investors.

Takuya Sakata (Partner), Naoya Shibahara (Principal), Delight Ventures

Takuya Sakata (Partner), Delight Ventures

Naoya Shibahara (Principal), Delight Ventures

Since our investment in the previous round, remarkable results embodying next-generation operations for renewable energy power plants have been achieved, and product development and customer acquisition have progressed strongly, leading us to make an additional investment this time. This is a unique area with both the rapid changes of soaring electricity demand and various institutional reforms, and the inertia inherent in a huge industry. However, we expect reforms from a highly breakthrough team led by Ms. Hori and Mr. Filter. Delight Ventures is honored to accompany Tensor Energy on its challenge.

Representative Comments

We are very pleased to announce the closing of this Series A round, having received high evaluations for the achievements of our products and services and our future growth potential. Japan's electricity market is undergoing a major transformation, and with the rapid increase in electricity demand driven by AI and accelerating institutional reforms, power generation businesses are required to make decisions with unprecedented speed and accuracy. Tensor Cloud aims to become the 'next-generation digital infrastructure for electricity,' indispensable for such businesses.

While refining the functions that users truly need, we will nurture Tensor Cloud as the standard for the energy industry, aiming for fully automated operation of power plants. We will also powerfully promote Japan's energy transition by leveraging the knowledge and networks of top VCs, including Globis Capital Partners, Global Brain, and Delight Ventures.

For four and a half years since our founding, we have welcomed professional members from all over the world who share our vision. As Tensor Energy enters a period of rapid growth along with the market, we are sincerely looking forward to welcoming even more new members.

Representative Directors Vincent Filter & Nana Hori

Recruitment Information

Japan's energy system is undergoing a fundamental change. Would you like to be part of this historic turning point with us?

Tensor Energy is currently a flat, global team of 18 highly skilled members from 9 countries, directly tackling challenges that no one has yet solved. We are looking for colleagues who are dedicated to solving immediate problems for a prosperous future generation.

Recruitment page: https://tensorenergy.notion.site/Tensor-Energy-1e7e97a69a1681418359e320dd455e6b

<h2 class="pr-header-- Keywords: Renewable energy, Carbon neutral, Storage battery, AI, Energy tech, Startup, Electricity, FIP scheme, Smart grid, Solar power