PowerX to Innovate Power Storage and Transmission with ‘Power Transfer Vessels’ and In-house Battery Manufacturing

PowerX will design and build an automated Power Transfer Vessel with a massive battery payload that is integrated with the ship's controls to transport offshore wind power to shore. An undersea power cable typically requires expensive construction that comes with substantial environmental impacts.

Comparatively, the Power Transfer Vessel stands out as it is resilient to natural disasters, requires less time and cost for development, leaves minimal impact on the environment, and therefore is able to expand the potential of offshore wind power significantly.

Most of the world's energy is transported by ships, in the form of fuel such as oil, gas, and coal. 84.9% of Japan's power is generated by burning carbon-based fuels imported by ships. As the world shifts away from fossil fuels, the energy ship of the future will carry electricity from clean and renewable sources, replacing the fuel-carrying carbon ships of today.   

The very first model of the Power ARK series, "Power ARK 100" is a 100TEU trimaran specially designed for transferring renewable energy in Japan's coastal waters. Upon its completion in 2025, Power ARK 100 will carry 100 grid batteries, hence 200MWh of power (equivalent to the total electricity consumption by 22,000 Japanese households in a day. The vessel can travel up to 300km when running only on electricity and will be able to unlock long-distance, intercontinental clean power transmission when it is powered by both electricity and sustainable biodiesel fuels.

To realize its vision, PowerX will also be building a giga-scale battery assembly facility in Japan to mass-produce batteries for the Power Transfer Vessel. With an acceleration toward decarbonization across the globe, the demand for large energy storage is soaring. Off-the-shelf battery cells will be packaged based on the use case, which includes EV fast-charging, grid, and marine batteries. The factory's annual production capacity will achieve 1GWh by 2024, and will eventually reach 5GWh by 2028. Productions lines will be automated to mass-produce at a low cost.