Google has announced an odd little scheme it’s calling PowerMeter – which, it reckons, could eventually save us all 15% on our electricity bills.

How does it do this? Well, it probably can’t at the moment – the PowerMeter requires you to have a utility company and modern ‘smart’ electricity meter that gives out streaming power usage data. The main gadget for use at the moment is the AWESOME POWER of the MIND, which, by having a plug-in that constantly…