Cwm Dyli Hydroelectric Power Station is a 9.6 MW hydroelectric power station in North Wales, operating since 1906 and considered the oldest hydroelectric power station in the United Kingdom. The company produces energy from the waters of Lake Lidau, which is located at the foot of Mount Snowdon, the highest peak in this part of the kingdom. Image sources: Water Power, Wikimedia, Wikipedia, Cumbria News.