HISTORY buffs can visit one of the country's first working hydro electric power stations as part of 2009's Heritage Open Days.

Mary Tavy hydro electric power station is the biggest renewable energy site belonging to South West Water and produces one third of its renewable energy, serving 2,500 properties with green energy.

There has been a form of hydro power generated at Mary Tavy since 1932. During the last 75 years, the primitive mill wheels have gradually been replaced with the latest technology.

Mary Tavy is now a highly effective hydro electric power station, with six turbines and a combined capacity of 2,610 kilowatts. 

The turbines are powered by river water, collected in two reservoirs on Dartmoor then sent via gravity down two pipelines to feed the hydro turbines.

Energy manager Alan Burgess said Mary Tavy was a fascinating example of how hydro electric generation had developed through the decades and he hoped everyone would enjoy the tour.

The free tours of Mary Tavy hydro electric power station will take place on Thursday, September 10 when visitors will be taken around the turbine hall to hear the story behind the historic operational plant.

Places on the tours are limited to ten per tour and must be pre-booked. The 45-minute long tours will take place at 9.30am, 10.30am, 11.30am, 1.30pm, 2.30pm and 3.30pm. 

To book a place, contact South West Water's communications team on 01392 443020.