Lesson plan

OpenHydro

OpenHydro Group Ltd was an Irish developer of tidal stream turbines, established in 2004. It was acquired by Naval Energies (then DCNS) in 2013, however, Naval Energies decided in July 2018 to stop developing tidal turbines and focus on floating wind turbines. The company subsequently went into liquidation with debts of about €280m. OpenHydro was based in Dublin and had a manufacturing facility in Greenore, Ireland. Naval Energies unveiled a new factory in Cherbourg-en-Cotentin, France, alongside the International Conference on Ocean Energy (ICOE2018), just weeks before exiting the tidal energy market. OpenHydro developed an open-centred horizontal-axis turbine, surrounded by a ducting shroud which was claimed to have multiple benefits: increased flow through the turbine, helps align the flow through the turbine, and housed the rim-mounted direct-drive generator thus removing the need for a gearbox. Various iterations of the OpenHydro turbines were tested in Scotland, France, and Canada.

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Article summary

OpenHydro Group Ltd was an Irish developer of tidal stream turbines, established in 2004. It was acquired by Naval Energies (then DCNS) in 2013, however, Naval Energies decided in July 2018 to stop developing tidal turbines and focus on floating wind turbines. The company subsequently went into liquidation with debts of about €280m. OpenHydro was based in Dublin and had a manufacturing facility in Greenore, Ireland. Naval Energies unveiled a new factory in Cherbourg-en-Cotentin, France, alongside the International Conference on Ocean Energy (ICOE2018), just weeks before exiting the tidal energy market. OpenHydro developed an open-centred horizontal-axis turbine, surrounded by a ducting shroud which was claimed to have multiple benefits: increased flow through the turbine, helps align the flow through the turbine, and housed the rim-mounted direct-drive generator thus removing the need for a gearbox. Various iterations of the OpenHydro turbines were tested in Scotland, France, and Canada.

Key claims

  1. date of establishment: 2004 — source: Wikipedia · confidence 0.95

Discussion questions

  1. Summarise the article in your own words. Which single claim would you verify first, and why?
  2. The record states that the date of establishment is "2004". What evidence would count against this claim?
  3. Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
  4. If two sources disagreed about one of these facts, what would you need in order to trust one over the other?

Bibliography

  1. Wikipedia https://en.wikipedia.org/w/index.php?oldid=1365108322

Key claims and bibliography are generated from the same tracked claims and sources as the article page.