Tidal stream energy has made a further step towards commercial viability following what has been described as the most comprehensive lifecycle assessment to-date of a megawatt-scale array in the UK. The assessment, authored by Black & Veatch and free to view by anyone, shares lessons learnt during the planning, design, delivery and operation of MeyGen’s six-megawatt (MW) array in Scotland’s Pentland Firth. Phase 1A of the MeyGen project was partly funded through a £10m grant from the Department for Business Energy and Industrial Strategy, with a requirement that lessons learnt from the project were collated and shared. “The assessment offers valuable lessons for everyone involved in developing tidal-stream energy as a viable source of power,” said Tim Baker, Black & Veatch marine energy director. “At each point in the asset’s lifecycle the report identifies where efficiencies, cost savings, economies of scale and improvements can be achieved. Crucially, the assessment also shares safer ways of working in the potentially high-risk marine environment.” MeyGen Phase 1A, a 6MW demonstration array comprised of four 1.5MW tidal turbines, entered its 25-year operations phase in April 2018. The array has successfully exported 21 gigawatt hours to the grid to date, with an average turbine availability of circa 95% during its operational phase. The assessment explains what worked well, what was less successful, and – based on this knowledge – makes recommendations to enhance the success of future projects.
Infrastructure Intelligence 1st July 2020 read more »
A rival scheme to the presumed-dead tidal lagoon concept has been revealed for Swansea Bay, this time hoping to appeal to regional nationalism as well as environmentalists by shaping its turbines and works into the image of a dragon. It’s the dream of Dragon Energy Island, which is expecting an interim decision from the Welsh government over the coming weeks. The tidal power concept would also place as many as 10,000 homes on the reclaimed site, homes on floating platforms that would enjoy direct power from tides and solar arrays, with the developer estimating a lifespan of around 120 years.
Gizmodo 1st July 2020 read more »
Plans for a tidal energy lagoon in Swansea Bay have ended in ignominy after authorities said its planning permission had expired and accused the developer of starting work unlawfully. Mark Shorrock, the entrepreneur behind the proposed £1.3 billion scheme, had warned last week that his project would be killed off if he was not able to start construction work before planning consent expired on Tuesday. But to begin work, he needed the government to sign off on its decommissioning plan, which it still has not done. Despite this, on Monday his company Tidal Power began demolition and clearance work at one of its sites. It claimed this counted as “material operations” and would “secure in perpetuity the planning permission for Swansea Bay tidal lagoon”. The government said the development consent order issued for the project in 2015 expired on Tuesday.
Times 2nd July 2020 read more »