I echo the comments of most (if not all) of the other comments in this thread. I am one of the fortunate ones that has a functioning IHD and it helps me with my energy monitoring.
BUT.....
my IHD has flaws but they are flaws that I can live with because I only rely on it to provide me with certain metrics. These metrics can be (and are) provided by other means from time to time when the IHD decides that 'it needs a rest' The metrics I use are:
- Actual meter reads (I only have a single register) that I check on the monthly due date that meter reads are populated by Eon Next in my account. If my IHD was not working at all, I'd probably be checking at the actual meters once a month. Much like everyone used to do in the old days (and many still do)
- Daily Usage (in kWh) I check my IHD each morning and the history option on the IHD tells me what I used the previous day. On the rare occasions that the IHD is 'down' I pull up the Bright app that tells me what I used (kWh) yesterday. The electricity/gas usage details on the Bright app do tally with the IHD but you need to go into the individual gas and electricity menus rather than the home page for accurate historical records if this is important.
- Usage Now (just for electricity kWh because gas usage only gets read and changes every 30 mins) This can be useful if you whack on an appliance and want to see the extra power draw said appliance is pulling at that moment in time. Try putting the kettle on and the power shoots up whilst the kettle is boiling. OK if the IHD is down what do you do instead? Invest in a plug that is a 'power monitor' - you should be able to pick one up for less that £10 if you are savvy. I have one and it tells me (for example) that washing and tumble drying (heat pump) a full load uses only 1.5kWh of electricity max.
Many folk rely on the IHD for budgetary purposes but you need the correct tariff information uploaded to your meter (and henceforth to the IHD) for this to be a useful tool for some. I know what my tariff is and my electronic pencil and pencil methods (i.e the spreadsheet) gives me way more useful budgetary information that the IHD gives me and I know my spreadsheet is correct. I know with an increasing degree of certainty, as the month passes, what my next statement balance is likely to show and budget accordingly. The Eon Next app fails to provide me data that is more accurate (and complete) than what I have by other means. In fact I do not see this breakdown on my Eon Next app anyway (never have) so no better than the online account in this respect for budgetary purposes.
Last edited by Mailman; 23-12-23 at 16:51.