Wind Turbine turns 15 years on Green Park, Reading THE FIRST wind turbine over 100m tall in Reading has turned 15 years old. The 120 metre-tall turbine, the first of its kind to be constructed in the Thames Valley, has generated more than 50 million kWh's since it was first started in 2005 - this is the equivalent of 25 million dishwasher loads. Found in Green Park, Reading, it is the only wind turbine in the UK that can claim to be partially designed by world-famous architect Sir Norman Foster. The turbine powers a 2.5 square mile radius (including the Madejski Stadium), and has amassed 48,000 visitors touring the site have since 2008.