London’s first Archimedes Screw hydro-electric turbine arrived in Morden Hall Park this week.
The Screw, made in the Netherlands, arrived on July 18 and, from September, the turbine will use water power for the park’s visitor centre and education centre.
The installation marks the final phase of a two-year project to create the most energy efficient building in the country.
The National Trust’s new visitor centre at the park, in Morden Hall Road, already boasts three different types of solar panels, an air source heat pump and a wood burning stove.
Zoe Colbeck, from the National Trust, said: “We are very excited to be installing a modern 'water wheel' to harness the power of the river.
"It is the final stage of a pioneering project and also takes us back to the reason the park exists - water power."
Funded by heritage National Lottery money, the turbine phase of the project is also being funded by City Bridge Trust and Thames Water.
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