Engineering manager offshore Michael Splett told a Windpower Monthly conference in London that while its operational near-shore Baltic 1 project was being serviced by crew transfer vessels and helicopters from a land-based "service station", a new approach would be adopted for Baltic 2, which is 32km out to sea in 20-40 metres of water.
Due for completion in 2013, Baltic 2 will have a capacity of 288MW generated by 80 Siemens 3.6MW turbines.
Splett said EnBW would deploy a 70-metre multi-purpose offshore service vessel (OSV) built by FRS in Strasund, north Germany.
The 15 knot OSV will provide personnel accommodation for 45 crew and technicians, be able to carry equipment on a large container deck, and carry out direct O&M work using an Ampelmann crew turbine access system installed on its aft deck.
Splett said: "The OSM concept offers good accessibility, 24/7 operation, less downtime and spare-parts capability on site."
The OSM will be augmented by helicopter access.