Business Overview
World’s First.
Powering the Clean Energy Transition with the Battery Tanker
The shift to renewable energy isn’t just about generation — transporting power is just as crucial. With the world’s first Battery Tanker, Ocean Power Grid delivers clean electricity from where it’s generated to where it’s needed. This breakthrough infrastructure closes critical energy access gaps and opens new frontiers for scalable, renewable energy deployment worldwide.
Bridging Generation and Consumption
Widespread adoption of renewable energy depends on how we connect where power is generated to where it’s consumed.
At Ocean Power Grid, we offer a new solution: the world’s first Battery Tanker—designed to safely and efficiently transport large volumes of electricity across oceans.
Unlocking Energy Access
From Remote Islands to Offshore Wind and Global Expansion
Remote Island Power Transmission
Japan is home to many inhabited remote islands, most of which still rely on diesel power. Battery Tankers offer a cleaner, more economical, and stable alternative—reducing CO₂ emissions and easing the burden of fuel transport. As next-generation infrastructure, they hold strong potential to support sustainable island living and scalable clean energy delivery.
Related release
Delivering Yakushima’s Clean Energy
Testing Hydro Power Delivery from Water-Rich Yakushima
Offshore Wind Transmission
Offshore wind power in Japan’s coastal waters is a fast-growing renewable energy source. However, as generation sites move farther from shore, delivering electricity becomes a major challenge. Battery Tankers offer a flexible solution for transporting power from sea to land—serving as “mobile transmission lines” that can accelerate the full-scale deployment of offshore wind.
Global Expansion
Just like in Japan, many regions—especially island nations—face challenges due to limited grid infrastructure.
Battery Tankers
Flexible Power Delivery Across Regions
Power Ark

Power Ark 100
Length
approx. 90m
Breadth
approx. 18m
Total Capacity
120MWh
Navigation Range
Coastal, near-sea, and oceanic areas
Power Barge

Length
approx. 60m
Breadth
approx. 30m
Total Capacity
120MWh
Navigation Range
Inland waters
* Images are illustration purposes only