ON GEMINI
Gemini in figures
600 megawatt - production capacity
2.6 terawatt hour electricity - generated per year
€ 2.8 billion - project financing (loan capital and equity) pooled in record time
6 months to Financial Close - an unprecedented timescale for a project of this size
36 kilometres per hour - the average wind speed in the area
85 kilometres - from the Groningen coast
68 square kilometres - of wind farm in the North Sea
28-36 metre - water depth at the site of the wind farm
5 years - between obtaining the Water Act licence and the financial close
in May 2014
24-36 months - needed to complete the environmental surveys and obtain
the required project licences
1.25 million fewer tons of CO₂ emissions - per year because of Gemini
500 local jobs - to be created during construction
1 land station - will be constructed in Eemshaven
59-73 metres - length of the monopiles; each monopile will be adjusted to
the installation depth required by the conditions at the various
locations
7-11 centimetres - wall thickness of the monopiles; this varies to give additional support
to the construction in areas in which the sea exerts most pressure
5-13 revolutions per minute - range of the nominal rotor speed
88.5 metres - height of the turbine hub above sea level
990 tons - lifting capacity of the crane on offshore installation vessel Aeolus
2 offshore high-voltage substations
5,000 tons - weight of a full cable carousel on installation ship Nexus
110 kilometres of export cable - from each offshore substation to land (approximately)
33 - nominal kilovoltage of the thinnest infield cable (108 mm diameter)
that connects the turbines with the substations
220 - nominal kilovoltage of the thickest export cables (267 mm diameter)
that can each transport up to 75% of the electricity that
Gemini generates.
450 turbine blades - each weighing 18 tonnes, to complete the wind farm
1,347 tons - total weight of the heaviest installed turbine (including monopile,
transition piece, nacelle and rotor with blades)