Additional features across our fleet include:

• Low-energy LED lighting resulting in a lower heat output, lower power usage and a longer life

• Waste heat recovery systems using the heat from the engines as a free source for heating water

• Intelligent HVAC system with automatic “Eco-mode” to reduce power when spaces are not in use

• Noise & light pollution reduction technologies, reducing our impact on local communities and landscapes

 The above-mentioned technologies, in combination with vessel-specific characteristics, allow us to deploy a fleet of veryefficient vessels that meet or exceed environmental regulations across the world.

RIVERS:
In 2020, we formalized our efficiency efforts by voluntarily certifying our European fleet with the Green Awardfor inland shipping—a program originally established to promote quality shipping amongst for sea-going vessels. Wecurrently have 26 ships certified, with the remainder of the fleet expected to follow in 2022. Furthermore, Viking’s riverfleet has adopted the European ISO 14001 Environmental Management practices as an operating standard—an industryfirst. This gives us a reference framework for continual improvement of our environmental performance. Part of thiseffort includes installing a battery pack on our latest new builds, which are expected to reduce our emissions by another5%.

OCEANS:
Our ocean ships come with the best Energy Efficiency Design Index (EEDI) rating of their class, and they exceedthe 2025 International Maritime Organization (IMO)’s requirements by almost 20%. We estimate that our vessels’ fuelconsumption, greenhouse gas emissions and hence potential global warming impact are some 40% lower than forvessels of an older design. Our ocean ships were the first new builds in the world to be equipped with exhaust cleaningsystems that meet IMO 2020 standards for emissions. These systems are of the closed-loop type: pollutants removedfrom our exhaust can be stored on board and disposed of at suitable reception facilities ashore (open-loop systemsdischarge these pollutants directly into the environment). Additionally, the newest vessels in the Viking ocean fleet havebeen fitted with Selective Catalytic Reduction (SCR) systems to virtually eliminate Nitrogen Oxide (NOx).

EXPEDITIONS:
The ships’ engines currently use marine gas oil (MGO), which is the safest environmental option available.With their efficient design, including the favorable length/beam ratio, intelligent HVAC systems, heat recovery systemsand LED lighting, the vessels exceed IMO EEDI requirements by nearly 38%.

MISSISSIPPI: The ship is equipped with a variety of measures to maximize energy efficiency andemissions—including a diesel-electric propulsion system comprised of Tier 4 diesel engines, each powering a watercooled generator; each engine/generator unit is individually mounted on a specially designed double raft isolationsystem that produces a remarkably quiet and smooth ride. Propulsion power is provided by Voith 6 blade propulsion thrusters driven by permanent magnet electric motors; pump jet bow thrusters are powered by permanent magnetmotors; and a highly advanced exhaust scrubbing system significantly reduces sound and emissions.