Patent ID: 8572926

Claim:
A method of erecting a wind turbine, comprising the following steps: a) providing a hub ( 9 ), some blades ( 11 ), a nacelle ( 13 ), and a lattice tower ( 15 ) comprising a first section ( 21 ) composed of a first part ( 23 ) and a second part ( 25 ), and a second section ( 27 ) pivotally connected along an axis ( 17 ) at a height H, a lower part of the lattice tower ( 15 ), below height H, being composed by the second section ( 27 ), that includes lower and upper legs ( 31 , 33 ) of the lattice tower ( 15 ), and the first part ( 23 ) of the first section ( 21 ); and an upper part of the lattice tower ( 15 ), above height H, being composed by the second part ( 25 ) of the first section ( 21 ); b) assembling on ground the wind turbine, with the blades ( 11 ) placed parallel to the ground and the nacelle ( 13 ) resting on a carrier ( 19 ), and hinging the lattice tower lower legs ( 31 ) on first foundation corners ( 41 ); c) raising the second section ( 27 ) and having the lattice tower upper legs ( 33 ) fixed to second foundation corners ( 43 ); and d) raising the first section ( 21 ) and having its first part ( 23 ) fixed to the second section ( 27 ).