GeneratorCare™ Expert repair solutions BENEFITS • Improved lifetime and generator performance • Save on replacement costs by up to 60% compared to new* • Reduced O&M costs • Reduced downtime • Plug and play solutions • Global repair loop to keep your costs at a minimum *Dependent on component-specific conditions Building on more than 30 years of R&D efforts and engineering expertise, Vestas has the experience and knowledge to offer you the best service solutions available. GeneratorCare™ offers repair and upgrade solutions designed to improve the lifetime of your wind turbines and reduce your O&M costs, including exclusive uptower solutions for V90-3.0 MW Leroy Somer generators. Experience as a capability Vestas is vastly experienced in handling generator repairs, both on-site and in workshops. With more than 3,000 generators under care annually and more than 27,000 turbines under performance monitoring, Vestas knows better than anyone else what it takes to offer continuous improvements of repair solutions and upgrades. Global Presence Vestas’ global repair loops ensure rapid process times and rapid delivery. Workshop repairs are carried out in Vestas’ generator repair factory in Germany or in one of our partnership factories

GeneratorCare™ Extending lifetime, boosting profits Generator failures can be costly, affecting turbine service time and site performance, leading to a poorer return on investment. This is why we have developed GeneratorCare™ – our comprehensive service programme which enables you to have generators repaired, updated and exchanged as soon as defects are detected or through proactive inspections carried out by experienced service technicians with the aid of wind turbine performance data. BENEFITS OF UPTOWER AND ONSITE REPAIRS • Optimising cost savings • Minimised downtime • Short lead time • Service...

of skilled personnel and technology. In the repair shops, we dismantle, clean and inspect every generator in turn, before writing the report on the required renovations and interventions. During the repair process, each generator undergoes a rigorous lifetime test. If the required repair work is not deemed profitable after taking the generator age and other features into account, we will recommend a new or refurbished generator. BENEFITS OF WORKSHOP REPAIRS • Easier and faster decision making based on informed overviews • Original parts and service kits for all repair work • Reduced downtime...

Vestas Wind Systems A/S Hedeager 42 . 8200 Aarhus N . Danmark Tlf: +45 9730 0000 . Fax: +45 9730 0001 [email protected] . vestas.com GeneratorCare™ repair capabilities Downtower Solutions Turbine type Uptower Solutions Bearing shields exchange ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● Replacement of bearing PT 100 sensors ○ ○ ○ ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● Bearing journal repair ○ ○ ○ ○ ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ○ ○ ○ ○ ○ ○ Replacement Replacement Replacement of stator of rotor of RCC cables cables components ○ ○ ○ ○ ○ ○ ○ ○ ● ○ ● ○ ○ ● ● ○ ● ● ○ ○...