How to generate the most savings
Telling us your last 12 months total electricity consumption will allow us to calculate a 20% saving. Over and above this you will get added savings using off-peak Economy 7 or Economy 10 tariffs.
Economy 7 gives you 7 hours of cheap electricity starting around 12.30AM depending upon your supplier. Economy 10 gives you 5 hours of off-peak overnight electricity and 5 hours of electricity during the daytime at off-peak prices at time slots which vary supplier to supplier. No matter, the battery is charged during the night time as this only takes one hour and it is there to give you this cheap electricity when you need it for breakfast, showers etc. It is colloquially called time-shifting and is perfectly legal and countries all around the world are waking up to this revelation. Battery storage technology allows this to happen.
Houses from northern Scotland to southern England can have HEMS installed and enjoy a minimum 20% saving in their electricity costs.