The Guardian reports today that the Merton rule has now been embedded into a new planning policy statement.

The government will today publish a new planning policy designed to boost the use of renewable energy and community heating schemes in new buildings as it gears up for the introduction of carbon-free homes from 2016 … requiring new commercial buildings to produce at least 10% of their energy from on-site renewables.

So another target milestone for the industry looms.  However in the (rising) scale of things only 10% from renewables by 2016 seems paltry.