Green Energy Introduces a Domestic Time-of-Use Tariff

Green Energy Domestic Time-of-Use tariff 1st Jan 2017.

On New Year's Day, Green Energy announced the first 3 price domestic time of use tariff in UK .

Costs are:

Peak       24.99p   16:00-19:00 weekdays

Off Peak  4.99p    23:00-06:00 every night

Normal   11.99p  at all other times

I currently pay 17.6p normal and 5p off peak, on Ecotricity's new Energy Plus tariff. I calculate that ignoring the off peak I would need to use less than 43% of my electricity at peak times to make it worth changing. Unfortunately I am outside the radio range required by smart meters, so I can't switch.

As a fully signed up geek, I am happy to do this calculation, and to measure my hourly consumption using an Owl USB meter.
I wonder how many of us are willing or able to do that?
The simplest thing to do is to use less electricity at peak times, whatever the tariff you are on!