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".
The batteries will be charged in-port using clean hydropower; the ships also boast "energy efficient hulls" and heat recovery systems, with their main engines powered by liquified natural gas.
Havila says these efforts will cut the ships’ carbon emission by 25% and nitrous oxide emissions by 80%-90%. The line eventually plans to offer zero-emission voyages.
Its initial plan to debut in spring 2021 was pushed back owing to the Covid crisis.
Capella’s sea trials are fixed for mid-May ahead of delivery in July, with Castor due to follow shortly after.
Havila has a further two ships, Havila Polaris and Havila Pollux, on order; both are expected to join the fleet in 2022 "as planned".
They will operate the coastal route from Bergen to Kirkenes as part of a ten-year agreement with the Norwegian government.
Havila’s 12-day return voyages visit 34 different ports sailing Norway’s fjords and its open seas deep into the Arctic Circle.
Matthew Valentine, Havila’s UK country manager, said: "We are incredibly excited about welcoming our first guests in August. The coastal voyage is the ultimate bucket-list trip, allowing guests to immerse themselves in Norwegian culture and enjoy unique experiences such as the midnight sun and magical northern lights."
The line’s ships will offer 179 cabins ranging from ten to 45sq/m, while food onboard will showcase Norwegian produce and culinary tradition.
Voyages lead in from £241pp for a two-day Trondheim to Bergen trip cabin-only; six-day southbound voyages from Kirkenes to Bergen lead in from £497pp and 12-day round-trips from £829pp full board.
Havila’s trips will be bookable through the trade.
