What a phenomenal week at Tokyo Big Sight! We are wrapping up Smart Energy Week Tokyo 2026 with deep gratitude for the record-breaking number of visitors at our booth. It was a true pleasure to reconnect with old friends and meet new partners shaping Japan’s power sector. Thank you for your trust and the insightful conversations that made this show a resounding success.
Observations from the Front Line: The Urgency of Energy Independence
Walking through the halls—particularly the bustling BESS section—it is clear Japan is at a critical turning point.
Despite strategic plans to diversify, recent data shows Japan still relies on fossil fuels for over 85% of its electricity. The 2026 Iran war and the blockade of the Strait of Hormuz have directly threatened the lifeline of these imports, transforming ENERGY INDEPENDENCE from a policy goal into an immediate survival strategy. The market is seeking to scale renewables and build a resilient grid to break this cycle of import dependence.
TWS Solutions: Bridging the Gap in Japan’s Energy Network

PowerMod
Building on a foundation of trust in the Japanese market for over 15 years, TWS Technology (TWS ESS) presented PowerMod, our Flagship BESS Container specifically engineered to address Japan’s unique grid challenges:
Optimized for LTDA
Our PowerMod system is designed to flexibly match the long-duration energy storage (LDES) requirements of the Long-Term Decarbonization Power Auction (LTDA), ensuring stable grid support and sustainable revenue.
Simplified Transport & Installation
With compact dimensions of 3360 x 2896 x 2438 mm, the PowerMod is engineered to meet Japanese road load limits and space constraints, significantly reducing the complexity of logistics and on-site deployment.
Ultimate Safety & Compliance
Built with C4/C5 corrosion resistance and backed by official reports for both battery thermal runaway and fire resistance, our solutions deeply align with rigorous Japanese fire safety codes.

Real-World Impact: Proven Case Studies in Japan
We deliver operational certainty through localized deployments:
Kagoshima PV Integration
Utilizing ProeM outdoor liquid-cooling cabinets for stable peak-shaving and backup power.

Maritime Innovation
Deploying specialized battery clusters for electric dredging vessels, proving stability in high-salt and high-vibration environments.

The era of fossil fuel dependence is fading. TWS is honored to be the “energy heart” for our Japanese partners, providing the reliable storage needed for a secure, independent future.
For more updates or inquiries, please reach out to us at: infoess@tws.com
