The Anonymous Widower

The Next Generation Of Fixed Foundation Wind Farms

This article on offshoreWIND.biz, is entitled Offshore Wind Turbines In 2022: 15 MW Prototypes Starting To Spin In Europe, Chinese Rolling Out 16 MW Models, Windcatcher And VAWTs Secure Demo Projects.

The title itself, shows 15-16 MW wind turbines and the text lists three European 15 MW and two Chinese 16 MW wind turbines, that are being developed.

This paragraph also indicates that Siemens Gamesa are in the running for orders.

So far, the SG 14-236 DD wind turbine has been selected as a preferred option for the Norfolk Vanguard and Boreas wind farms offshore the UK, as well as for the MFW Bałtyk II and MFW Bałtyk III wind farms in the Polish Baltic Sea.

Large turbines with a capacity of 15 MW and upwards appear to be becoming the new normal.

Water depths for these large turbines are forecast to be deeper than the two Norfolk wind-farms, which are between 22 and 40 metres.

This means that foundations will get much larger and heavier.

This article on offshoreWIND.biz, is entitled New Monopile Installation Method Attracts Major Backer, describes a new generation of monopiles as 100-130 metres in length, 12-15 metres in outer diameter, and a weight of up to 5,000 tonnes.

Installing these long and heavy objects safely in deep waters, is not a job for the faint-hearted.

The article describes a new method of installation, which I feel is very elegant.

  • The XXXL monopiles are built horizontally.
  • They are moved on to the jack-up ship by self-propelled modular transporters (SPMT).
  • It appears at least two or possibly up to four monopiles can be carried on the ship.
  • They are lifted into the vertical position by a lifting beam.

Note.

  1. No cranes are involved in the process.
  2. The lifting beam method of erecting the 5,000 tonne XXXL monopile is simple and very efficient.
  3. Self-propelled modular transporters were used to install the 2000 tonne subway at Hackney Wick station.
  4. Rollers are fitted on the ship to ease handling of the monopiles.

I can certainly see this specialised jack-up ship speeding up the installation of these giant monopiles.

Consequences For Floating Wind

I do wonder, if this method of installing fixed foundation wind farms, will allow larger foundations and these may mean that there is less need for the more complex floating wind farms.

January 5, 2023 - Posted by | Energy | , , , , , , , ,

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