Blue Marlin Becomes World’s First Solar-Powered Inland Cargo Vessel

📰 In News: Blue Marlin becomes World’s First Solar-Powered Inland Cargo Vessel

  • Dutch company Wattlab and Germany’s HGK Shipping unveiled the world’s first hybrid inland cargo vessel powered by solar energy, named Blue Marlin.
  • Equipped with 192 solar panels powering both onboard systems and the high-voltage propulsion system — first time solar energy is used directly for movement in inland shipping.
  • HGK Shipping operates 350 vessels and transports ~43 million tonnes of goods annually across Europe.
  • In comparison, MS Helios (also HGK Shipping) had 312 panels but powered only low-voltage onboard systems, not propulsion.
  • Blue Marlin’s system is fully integrated, supports both low and high-voltage systems → a technical milestone in inland shipping.
  • Produces up to 35 kW under optimal sunlight, works with four diesel generators for peak shaving (using solar + batteries to reduce extra generator use).
  • Uses automated energy management → distributes power efficiently and reduces fuel use.
  • When lightly loaded & sailing downstream, it may run entirely on solar power for short periods — a first in inland shipping history.

    Updated -  July 8, 2025 ; 10: 12 PM | https://www.marineinsight.com/