24 August 2011
Last updated at 17:41 ET
Windsor Castle will be powered by hydro-electricity, the royal household has said.
The castle will be supplied by Southeast Power Engineering Ltd (SEPEL), after former renewable energy plans were halted in 2009.
Two hydro-electric turbines at Romney Weir on the River Thames will be lifted into position by a crane in late September, the firm said.
The 40-tonne Archimedes Screw turbines will be ready to op… (View original article)