United Kingdom, April 25 -- James Norton is the voice of a brand new energy-saving Alexa Skill.

The British actor has joined forces with OVO to help customers know when is the best time to use energy at greener times and reduce their carbon footprint with a 'Power Nap'.

The tool uses "real-time data from the National Grid so that any Alexa smart speaker owner, regardless of energy supplier, can understand if it's a good, okay or bad time to switch on electric appliances and devices - all they need to do is ask."

The idea came about after YouGov research commissioned by OVO found just 21 per cent of people run appliances at off-peak times to avoid energy peaks. What's more, 16 per cent didn't know that improving the energy efficiency of...