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The cost increases were due to :-
Capital expenditure (Capex) The Capex component of the final transfer value increased by £18.6m (€25.1m)since the indicative transfer value. This includes increases of: . £20.2m (€27.2m) for offshore substation costs, offshore cable jointing costs, installation delays and onshore substation costs; and . These increases were offset by a reduction of £1.6m (€2.16m) for other onshore costs. Ofgem also blamed increases on project management costs and supporting offshore logistic costs related to the cable installation process and the offshore platform commissioning. The amount claimed for interest during construction was also reduced although £4.3m (€5.8m) was allowed though as a result of extended construction period and an increase in Capex and development costs. £8.8m (€11.8m) of transaction costs were also reduced to £2.1m (€2.8m) . Gwynt y Môr Offshore Wind Farm is owned and financed under a joint venture structure by RWE Innogy GmbH (60%), Stadtwerke Munchen GmbH (30%) and Siemens AG (10%). The Gwynt y Môr transmission assets connect to the Gwynt y Môr Wind Farm at two offshore platforms. The transmission assets that are transferring to the OFTO comprise of: . two offshore platforms and associated substations; . four subsea export cables with a total length of approximately 82.8km; . four 132kV onshore cables with a total length of 44km; and . an onshore substation at St Asaph. The boundary points for the Gwynt y Môr transmission system are defined as: . Offshore: Located at the incoming 33kV circuit breaker cable termination on the two offshore substations; and . Onshore: Located between the 400kV busbar disconnectors and the 400kV OFTO circuit breaker. click this text link to view project on interactive map and zoom in to see cables and turbines
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