Sunreef Yachts has just started building what it’s claiming will be “the world’s most advanced sustainable luxury catamaran.”

The electric vessel, known as the Sunreef 80 Eco, blends the latest green technologies with the reliability of a day-sailer and the comfort of a superyacht. It was first unveiled last year as part of the Polish yard’s new Eco line that comprises a handful of vessels spanning from 40 to 100 feet.