Public artwork to power homes

Plans for a tidal-powered lunar clock have been showcased at an exhibition in London. It is set to become one of the most recognised landmarks on the planet and the globe's first public artwork to power homes.

The Aluna project proposes to build a 40-metre-wide structure that would be powered by turbines beneath the tidal Thames near the UK capital.

The turbines would also produce electricity for lighting for hundreds of homes. The glass and steel structure would be made up of three concentric rings, designed to light up to represent the waxing and waning of the moon.

When the moon is full, the tidal forces will be greater, making the clock shine more brightly. A place for the lunar clock has been earmarked near the Thames at the mouth of the River Lea.

Artist Laura Williams, who is spearheading the project, said: "It is a really exciting site for the project, at the top of the bend of the river, facing a huge expanse of water to the south."

Williams said the aim of the project is to teach people about reconnecting with their natural environment and provide a focus for various cultural festivals. "It would change the way we consider time and understand our planet," Williams added.

By building the world's first tidal-powered moon clock on the Thames, Williams wants to create an inspiring and informing public space. "Aluna reminds London — the home of time — that the natural rhythms of our watery world are being ignored at our peril."

She believes the huge landmark would be truly sustainable, built from recycled glass and lit by the power of the Thames' tides. Aluna claims to be the first arts project of its kind and, once up and running, would generate its own revenue by producing enough renewable energy to keep the lights on for about 200 London homes.