Second phase of RiaSoR wave and tidal reliability project under way

The second phase of a project designed to improve the reliability of wave and tidal energy converters is now under way in the UK, with a goal to encourage increased investment in the marine energy industry by both the public and private sectors.

Reliability in a Sea of Risk, or RiaSoR, is an international collaborative research project. Phase 2 aims to enable developers to evaluate their findings and establish a practical, condition-based monitoring platform to prepare for future arrays, where big data handling and processing will be vital to drive down operational expenditure.

This comprehensive suite of testing methodologies will enable a systematic approach to achieve optimal reliability and performance, while minimizing cost and time to market, according to a press release from the European Marine Energy Centre (EMEC).

Phase 1 developed a theoretical reliability assessment guideline for wave and tidal energy converters. This guideline “built upon established practices from the automotive industry where a monitoring framework is applied to a fleet of test vehicles,” EMEC says.

For RiaSoR 2, components for monitoring will be equipped with several sensors to collect required data, which will be fed into the reliability process to reduce uncertainties. Sea tests will act as case studies to feed the methodologies and training into the guideline.

“Reliability testing is tough to do in the sea,” says Elaine Buck, EMEC’s technical manager. “RiaSoR 2 is about establishing a methodology and testing programme so we can gather data between device installation through to MTTF (mean time to failure).”

RiaSoR is funded through the OceanERANET initiative and led by the Research Institute of Sweden. It brings together EMEC, Offshore Renewable Energy Catapult, Alkit Communications, Synective Labs, CorPower Ocean, Waves4Power, Cruz Atcheson and OceanHarvesting.

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