After lengthy planning and permissions process, #Poland started actual construction work on three off-shore wind farms on #Baltic sea totaling 3 GW installed power. In engineering terms, an interesting solution is a 1.5 km submarine tunnel 40 m below sea bottom for the high current cables to avoid damage on shallow waters.

?name=VmTZ7ZENRYulPg.png

?name=IsqRIpbsXAi0bQ.png