Trio accessible. User manualWhat does it mean?9What is normal?Don’t worry if now and again the usage is high - this canbe normal.Your electricity usage varies as things are switched on andoff in your house.Electricity usage can be low (green), medium (amber) orhigh (red). Boiling a kettle for example will mean for a shortperiod of time your house usage will be medium (amber);in the evening or morning time it might also be medium(orange)- this is perfectly normal.If you have electric or storage heating, then it is possible tosee high usage (red) when the heating is being used.During other periods the usage should be low (green),especially when you are heading to bed.Depending on your smart meter, the maximum rateof consumption the dial can show can be scaled to matchyour household. See “Advanced” on page 39.Evening timeBoiling a kettleTypicalbackground load