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Ocean Harvesting opens financing round to advance InfinityWEC wave power technology

Karlskrona, Sweden; 31 March 2025 – InfinityWEC is a novel Wave Energy Converter now being developed and tested as part of two ongoing EU-funded international collaboration projects (CETP): INFINITY (PTO and control system) and WECHULL+ (floating concrete structures).InfinityWEC produces high electricity output relative to its size and is mainly built of low-cost materials with low carbon footprint, resulting in exceptional resource efficiency and ultimately very competitive cost of energy (LCOE). “The scopes of the INFINITY and WECHull+ projects and the partners involved are a perfect

InfinityWEC shows significant improvement in energy output and motion control with moment-based MPC

Karlskrona/Gothenburg, Sweden; 14 June 2024 Ocean Harvesting is currently developing generation 6 of its wave energy converter InfinityWEC in close collaboration with ball screw manufacturer NSK. A ball screw is a very good actuator providing a high ratio between linear motion and rotation to the generator, high efficiency, low weight and long life. However, ball screws are sensitive to the side forces and bending moments in the PTO caused by the surge motion of the buoy and high speeds that may occur in large waves. This challenge in the design of the PTO has been solved with a new linear

Investors invited: Ocean Harvesting raising 500,000 Euro for design update of InfinityWEC wave energy converter and preparation for sea trials

Karlskrona/Gothenburg, Sweden; 20 March 2024Ocean Harvesting Technologies AB has since 2017 been developing the wave energy converter InfinityWEC. During 2023 and early 2024, focus has been on the ball screw actuation system in the power take-off and refining simulation models for generation 6 of the technology. Full-scale system design of InfinityWEC will continue in 2024, planned to be followed by a 1:3 scale sea trial project in 2025-2026. Ocean waves are a vast resource of renewable energy and wave power can produce electricity more consistently and at different times than wind and

InfinityWEC to demonstrate performance with enhanced model-based predictive control in scale 1:3 sea trials

Karlskrona/Gothenburg, Sweden; 29 March 2023 – Ocean Harvesting is collaborating with experts in model-based predictive control to implement recent research and increase the performance of InfinityWEC in the upcoming scale 1:3 sea trials. Use of predictive control strategies in a point-absorbing wave energy converter (WEC) greatly increases the annual energy production (AEP) compared to non-predictive reactive control. OHT has shown up to 30% improvement with model predictive control (MPC) in simulations, and similar results have been shown by other WEC developers and in academic

Innovative pre-tension solution reduces InfinityWEC electricity production cost

Karlskrona/Gothenburg, Sweden; 23 November 2022 – The InfinityWEC wave energy converter has been upgraded with an innovative solution which uses hydrostatic pressure to provide a constant pre-tension force in the power take-off (PTO), reducing size, weight, complexity, and ultimately cost of electricity production (LCoE).[Ocean Harvesting wave farm]In the upgraded InfinityWEC design, the PTO hull is split into two halves, with the top half moving up and down with the buoy, while the bottom half is fixed to the anchor. Similar solutions have been used by pressure-modulating wave energy

Promising results from case study of oil & gas platform electrification with wave energy

Karlskrona/Gothenburg, Sweden; 22 September 2022 – Offshore oil & gas platforms require constant power supply and decarbonization of this power is a high priority. A case study with Lundin Energy Norway has shown that wave power is highly competitive with offshore wind power, both in terms of levelized cost of energy and providing a more stable power supply that requires only half as much power balancing. To assess the sizing and power balancing requirements of the oil & gas platform, a one-year time series with sea state data was analysed. A design for a 100 MW wave farm was

Ocean Harvesting to raise 3 MEUR for sea trials with InfinityWEC wave energy converter

Karlskrona/Gothenburg, Sweden; 13 May, 2022 – To finance sea trials with wave energy converter InfinityWEC at scale 1:3, Ocean Harvesting is raising 3 MEUR in equity investment at a pre-money valuation of 7 MEUR. This investment will be combined with public financing for the project. The sea trials are planned to be completed by the end of 2024, after which commercialization of the technology will be initiated with sea trials of full-scale systems.[En bild som visar text Automatiskt genererad beskrivning] A transition to 100% renewable energy is necessary to mitigate climate change.

Ocean Harvesting develops a new buoy made of high-strength concrete for its wave energy converter

Karlskrona/Gothenburg, Sweden; 6 May 2022 – Ocean Harvesting is developing a novel concrete hull for the prime mover (buoy) of the InfinityWEC wave energy converter, using high strength concrete with low environmental footprint and excellent durability. The solution allows for large scale production and results in a buoy with a weight similar to a conventional steel hull, but at 1/4 of the cost and 1/3 of the CO2 footprint. Novel concrete InfinityWEC buoy at 400 m3and 120 ton Highly flowable concrete is poured into a mould with void fillers, forming the concrete shell and the

Ocean Harvesting completes testing of InfinityWEC power take-off and control system in a scale 1:10 test rig

Karlskrona/Gothenburg, Sweden; 5 May, 2022 – Ocean Harvesting has successfully completed the testing of a prototype in scale 1:10 of the power take-off (PTO) and the control system for the wave energy converter InfinityWEC. The design, build and testing in the rig was part of a project co-financed by the Swedish Energy Agency.[InfinityWEC power takeoff hardwareintheloop test rig at scale 110] To obtain a realistic load on the machinery, a scaled hydrodynamic model of a full-size wave energy converter (WEC) was used in combination with the physical PTO prototype and a real-time control

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