Battery-backed skyscraper concept, Shimizu TRY2025 Enertainer targets Japan’s peak demand

Shimizu’s TRY2025 Enertainer is a containerized large-scale battery system aimed at flattening peak electricity demand at offices and construction sites in Japan. The flagship solution bundles lithium-ion storage, control software and grid connectivity in one turnkey package.

Edited by ad hoc news Flagship & Bestseller Desk. Reviewed before publication on 06/15/2026 at 11:46 AM ET. Details in the imprint.

Shimizu’s TRY2025 Enertainer is not a building, but for the Japanese construction and real-estate giant it has quietly become a flagship energy product: a containerized battery system designed to shave peak loads in office towers and on job sites, helping large customers curb demand charges and cut CO2 emissions. The turnkey unit combines lithium-ion battery racks, power conditioning equipment and a supervisory control system in a transportable enclosure sized for tight urban footprints.

How Shimizu’s Enertainer works and where it fits into Japan’s grid

At its core, the TRY2025 Enertainer is a stationary lithium-ion storage system that charges during off-peak hours and discharges during peak demand windows, allowing buildings to reduce their grid draw when electricity is most expensive and carbon-intensive. Shimizu positions the system as a behind-the-meter asset for large commercial facilities and construction projects, integrating its control platform with building management systems to automate charge and discharge schedules.

The system is built into a container-like housing that can be craned into place on cramped construction sites or installed in service yards of existing properties, a configuration Shimizu developed specifically for Japan’s land-constrained urban markets. Depending on customer requirements, Enertainer units can be configured with multiple battery racks to scale usable capacity and output for anything from temporary site power to long-term deployment at high-rise complexes. According to Shimizu, early deployments have focused on Tokyo-area buildings and large projects where grid capacity constraints and summer peak tariffs are especially acute, with the company also exploring virtual power plant aggregation in cooperation with Japanese utilities.

Beyond peak shaving, Shimizu highlights the Enertainer’s role in business continuity: when paired with on-site solar or backup generators, the system can supply stored energy during outages, supporting critical loads such as elevators, lighting and IT infrastructure. For construction sites, where diesel generators have traditionally dominated, the company is marketing the unit as a way to reduce fuel consumption and noise while maintaining a stable power supply for cranes, tower lights and temporary offices. In sustainability reporting, Shimizu links the Enertainer to its broader 2050 net-zero roadmap and cites the product as one of several technologies intended to curb emissions from both its own operations and customer projects.

While still a niche offering compared with Shimizu’s core contracting business, the TRY2025 Enertainer sits at the intersection of Japan’s energy transition and the company’s engineering capabilities, giving it a differentiated product to sell into existing client relationships. For investors watching Japan’s decarbonization themes, the system illustrates how traditional contractors are adding recurring, service-adjacent products to their portfolios alongside long-cycle construction work. Shares of Shimizu (JP3275200001) closed on the Tokyo Stock Exchange at JPY 1,268 on 06/14/2026.

TRY2025 Enertainer in brief: the key facts

• Product: TRY2025 Enertainer
• Manufacturer: Shimizu Corporation
• Category: Flagship/Bestseller large-scale battery system
• Launch date: Around mid-2010s (pilot deployments in Japan)
• MSRP / Price: Project-based pricing; not publicly disclosed
• Availability: Offered to commercial building owners and construction clients in Japan
• Target audience: Large offices, mixed-use complexes and major construction sites seeking peak shaving and backup power
• Key differentiator / USP: Containerized lithium-ion storage tailored to Japan’s dense urban sites and integrated with building management systems

This article was a.i.-assisted and editorially reviewed. Product information without warranty; prices and availability may change at short notice. Not investment advice and not a buy or sell recommendation. Trading involves risk up to and including the total loss of invested capital.