Climeon introduces next generation WHR technology: HeatPower 300 Marine

Climeon’s latest waste heat recovery solution, HeatPower 300 Marine, was well received when it was unveiled to the industry at Seatrade Cruise Global in April. Developed by marine engineers for use in the maritime industry, the low-temperature waste heat recovery (WHR) system heralds a new era in sustainable shipping.

What is HeatPower 300 Marine?

Built exclusively for the marine sector, HeatPower 300 Marine has been designed to offer optimal performance and improved safety in difficult onboard conditions.

Climeon’s HeatPower 300 marine system increases energy efficiency and sustainability, capable of generating up to 1MW of clean power and reducing fuel consumption by up to 5%.

With the potential to reduce carbon emissions by up to 62,500 tonnes over the 25 year lifespan of a vessel and a payback period of just 2-5 years, HeatPower 300 offers marine shipowners a durable, cost-efficient and effective way to meet environmental regulations and maximize the energy efficiency.

Climeon HeatPower generates clean electricity on board Virgin Voyage’s Scarlet Lady.

Suitable for a wide range of vessels including cruise ships, container ships and cargo ships, the WHR system utilizes onboard waste heat sources to generate clean, carbon-free power. This green energy is then fed back into the ship‘s electrical grid and used for onboard operations, reducing the use of diesel-powered generators and minimizing fuel consumption.

Already in service on Maersk, Virgin Voyage and Viking Line ships, Climeon’s WHR system uses ORC technology to recycle low-temperature waste heat that ships produce in abundance but normally release into the atmosphere. However, with HeatPower 300 Marine, this previously worthless by-product can be turned into a valuable, energy-saving asset.

Not only does the HeatPower 300 marine system offer world-leading conversion efficiency, it is also compact, modular and scalable, making it perfect for onboard integration. With automated remote maintenance via Climeon Live and marine-specific design, Climeon’s HeatPower 300 marine system simplifies onboard energy efficiency, lowers fuel consumption and significantly reduces CO2 emissions.

Climeon HeatPower system on board Viking Line Glory.

Would you like to know more? Download our free whitepaper, ‘What is thermal power and how can it increase energy efficiency in the shipping industry?’, now!

Why use low-temperature waste heat?

The IMO has ambitious decarbonization targets for the shipping industry, and shipowners, in turn, are under pressure to increase the energy efficiency of their ships. As regulations become more stringent and ships are subject to EEDI, EEXI and CII assessments, it is vital that ships can maintain their optimal performance while emitting fewer emissions.

To date, numerous methods have been used to reduce carbon emissions across the sector, but many of these measures have focused on operational changes, such as: B. Slow steaming.

However, with innovative onboard technologies such as waste heat recovery, shipowners can achieve greater energy efficiency regardless of a ship’s operating pattern. This gives operators more flexibility and access to reduced costs while facilitating regulatory compliance.

Waste heat recovery is not necessarily a new concept in the marine industry, but the majority of previous applications (e.g. waste heat recovery boilers and economizers) have been used high temperature Waste heat for energy production. However, most of the waste heat on board is actually generated by low temperature, which cannot be used in conjunction with high-temperature waste heat consumers.

With maritime low-temperature WHR systems such as HeatPower 300 Marine, ships can use the low-temperature waste heat generated on board to generate clean electricity. Since all ships produce waste heat at low temperatures, this WHR method is practically universally applicable throughout the industry and can be used on almost any ship.

In addition, Climeon’s HeatPower 300 marine system offers a comparatively short payback period as well as tax savings through reduced fuel consumption and up to 1 MW of carbon-free onboard power.

With both new build and existing vessels subject to more stringent environmental assessments, the ability to integrate HeatPower 300 Marine into new vessels or to retrofit the system on existing vessels provides owners with the industry specific solutions they need to combine optimal performance with improved energy efficiency .

About Climeon AB (ed.)

Climeon is a Swedish product company in the field of energy technology. The company’s proprietary technology, the Climeon Heat Power System, converts low-temperature waste heat and geothermal energy into clean electricity. This largely untapped energy source provides a sustainable base-load power supply that is essential for the energy sector’s transition from fossil fuels to carbon-free energy sources. Climeon’s B share is listed on the Nasdaq First North Premier Growth Market. Certified consultant is FNCA Sweden AB, +46(0)8-528 00 399, [email protected] Learn more at

About Christine Geisler

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