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INFINITY Project awarded EUR 1.7 million from Clean Energy Transition Partnership (CETP) program

Karlskrona/Gothenburg, Sweden; 1 November 2024 – INFINITY Project will develop lifetime-aware Model Predictive Control (MPC) to be tested on InfinityWECs power take-off in an HIL test rig at VGA in Italy.Optimizing power take-off systems and control algorithms for wave energy converters is essential to reduce the use of materials per MW installed capacity and lower the levelized cost of energy (LCOE). The INFINITY Project delivers the next generation PTO and control system, taking advantage of learnings and test methods from both the IMPACT and the VALID H2020 projects. The project is co-

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 ball screw actuation system upgraded to 25-year lifetime and improved control of buoy motion and PTO velocity

Karlskrona/Gothenburg, Sweden; 7 March 2024 – Ocean Harvesting and ball screw manufacturer NSK have completed the design of the ball screw actuation system for InfinityWEC generation 6, and Ocean Harvesting is now raising 500 000 EUR for 2024 activities and preparing for a 1:3 scale sea trial project in 2025-2026.Wave energy is a vast resource of renewable energy that can produce electricity more consistently and at different times than wind and solar. This increases the value of produced electricity and reduces the energy storage needed to balance the grid. InfinityWEC is a novel wave

WECHULL+ project to develop novel floating structures based on high-performance concrete and Ocean Harvesting’s buoy design

Karlskrona/Gothenburg, Sweden; 19 December 2023 – The WECHULL+ project, co-ordinated by RISE Research Institutes of Sweden, has received a 2.5 MEUR grant from the EU Clean Energy Transition Partnership (CETP) program. The project will develop and test new floating structures of high-performance concrete, reducing cost and CO2 footprint, as well as improving circularity and reliability, in the offshore renewable energy sector. It is a 3-year project, starting in December 2023, implemented by a consortium of research organizations and companies from five European countries (RISE, Delft

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

Ocean Harvesting commissions test-rig for InfinityWEC power take-off with instant force control capabilities

Karlskrona/Gothenburg, Sweden; 19 November 2021 Ocean Harvesting Technologies (OHT) has commissioned a Hardware in the Loop (HIL) test rig at scale 1:10 to validate the InfinityWEC power take-off (PTO) with instant force control capabilities.The test rig simulates the buoy motion with force feedback from the PTO system, and will be used to validate the complete functionality of the PTO and control system as in a complete WEC for real sea conditions. The functionality includes (i) instant force control capability in combination with efficiency and constraint-aware predictive control,

Ocean Harvesting Technologies in collaboration with Lundin Energy Norway on using wave energy to provide electricity to oil and gas platforms

April 28[th], 2021 – In a future aligned with a 2-degree pathway, oil still plays an important role and is estimated to account for around 23% of the global energy mix in 2040, compared to 31% today. But in order to meet both future energy demand and climate targets, it is critical to decarbonise the production of oil and gas as much as possible.Lundin Energy’s carbon intensity per barrel of oil produced is approximately a sixth of the industry world average and the company will be one of the first oil and gas companies to achieve carbon neutrality from 2025. To achieve carbon neutrality

Ocean Harvesting Technologies secures €300 000 investment from the Lundin Foundation

On 11[th] September 2020, Ocean Harvesting Technologies, a Swedish pre-commercial renewable energy company striving to be a market leader in wave energy technology, announced a €300 000 investment from Lundin Foundation. The investment matches a €300 000 grant from the Swedish Energy Agency to provide Ocean Harvesting Technologies with the required funding to prototype the next development phase of the company’s novel InfinityWEC technology.InfinityWEC is a modular and scalable wave energy conversion system that is capable of capturing and converting wave energy to electricity in a highly

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