Largest offshore wind farm opens

The world's biggest offshore wind farm off Kent has been officially opened.

Swedish energy giant Vattenfall said the 100 turbines are expected to generate enough electricity to power 200,000 homes.

Construction work at the £780m wind farm began two years ago and was completed in June.

Continue reading the main story

The 380ft (115m) tall turbines are spread over an area of more than 35 sq km and are visible from the shore on a clear day.

There are currently about 250 wind farms operating in the UK, with a further 12 offshore, with 2,909 turbines in operation in total.

Full story...

Lighting now labelled in lumens

On 1 September 2010, EU legislation comes into force requiring lighting to be labelled in terms of lumens, instead of electrical watts. Lighting manufacturers already measure their products in lumens, which is derived from the SI unit for luminous intensity - the candela, so current products are likely to continue to be manufactured as they are. However the new rules will make it easier to bring new products to market ...

Full story On the UK's National Physical Laboratory (NPL) website.