E.ON UK's 180 MW offshore project at Robin Rigg has been delayed yet again while the jack-up barge for installing the foundations languishes in dry dock in the Netherlands for maintenance. The Rotterdam-based Lisa A was to have begun work on site in the Solway Firth between Scotland and England in summer, taking six months to install the 62 foundations. Ian Johnson, E.ON's project manager for Robin Rigg, explains that work to prepare the vessel for the Robin Rigg job has taken longer than its owners had expected. The 30-year-old self elevating platform was being fully refurbished and a new engine room installed. "Once she's ready and on site, we're very confident that we'll still be able to finish the foundation installation work on time," he says. "It's not as simple as just using another barge because the Lisa A is one of only a handful of vessels in the world capable of carrying out the massive task of installing 62 turbine foundations, each of which weigh between 260 and 280 tonnes." The delay means that work on installing the foundations will have to continue throughout the winter to make up time. E.ON still expects to fit the turbines next spring and hopes to have the wind farm fully commissioned by spring 2009.