Blossom Energy Releases PR Video for G-TES Graphite Thermal Storage Boiler, Visualizing Renewable Heat Utilization Technology

Blossom Energy Co., Ltd. (Headquarters: Chiyoda-ku, Tokyo; CEO: Shinpei Hamamoto) has produced and released a PR video for its graphite thermal storage boiler, the 'Blossom Energy G-TES.' The video presents the company's technology for storing and supplying surplus renewable energy as 'heat' and the philosophy behind it in a visually intuitive format.

## Production Background

While the adoption of renewable energy is expanding, a key challenge is how to absorb its variability to ensure a stable energy supply. The 'thermal energy' sector remains highly dependent on fossil fuels, requiring new approaches to achieve decarbonization.

Blossom Energy is developing the 'Blossom Energy G-TES,' a thermal storage boiler that utilizes the high thermal capacity of graphite to store and supply renewable energy as 'heat.'

Due to the complex structure and concept of this technology, it has been difficult for people to understand it in a short amount of time. Therefore, this PR video was created to communicate the essence of the technology and its social significance to a wider audience.

## Production Collaboration

This video was created in collaboration with HAMONI Inc., a video production company. The structure, direction, and visual expression were designed from scratch to communicate the technically advanced content in an easy-to-understand manner.

## Premiere at 'SMART GRID EXPO [Spring]'

The video premiered at the Blossom Energy booth during the 'SMART GRID EXPO [Spring],' held at Tokyo Big Sight from March 17 (Tue) to March 19 (Thu), 2026, and was viewed by many visitors.

Going forward, the video will be utilized in various contexts, including sales activities, discussions with partner companies, and recruitment.

## Production Team Introduction

Comment from Rina Hamada, Creative Director at Blossom Energy:
'I feel that G-TES is an ideal system that achieves both decarbonization and cost reduction using thermal storage technology. I was in charge of the overall direction, from scriptwriting, aiming to intuitively convey not just the technology but also the reasons 'why this technology is necessary' and the vision of Blossom Energy.'

Comment from Yuta Saito, Head of Video Production at HAMONI Inc.:
'Our top priority was to intuitively convey the significant social vision of 'decarbonizing heat' advocated by Blossom Energy, along with the advanced technology of the thermal storage boiler. We directed the project without compromise, from the composition to the CG expression.'

Hamada also expressed her gratitude to the production team, noting advice on the logo animation and overall tone of the video from Branding Director Nomura.