The Apple Watch, launching globally next month, is set to put wearables into the technology mainstream.

But, for the UK’s National Grid, it’s yet another device that needs to be charged.

Now, it’s not only your smartphone, laptop, tablet, games controller and kindle that needs electricity to work, it’s also your watch (with an 18 hour battery life).

According to the most recent data from The World Factbook, the average person in the European Union uses approximately 688 watts of electricity per capita.

In terms of your electricity bill, this is nothing. If you do the maths, your laptop, phone and iPad costs a mere €12 a year to run.

However, experts warn these prices are set to increase per kilowatt dramatically between now and 2020.

Mainly, it’s due to the way energy companies disperse energy. Many electricity grids are constantly running at a peak load and this huge surplus of electricity simply cannot be stored.

Tags: GE Energy