Havila Capella will enter service on 24 August, sailing cruises along the Norwegian coast.
Sister ship, Havila Castor, will set sail a week later on 30 August.
The line, launched last year, claims the two ships will be the most environmentally-friendly to sail the route, equipped with the largest battery packs fitted to a cruise ship.
These will allow the ships to sail for up to four hours solely on battery power, allowing them to navigate fjords and other sensitive areas "quietly and emission free".
