Electricity monitor that you can configure for two tier pricing?

GSB1

Hi,

I am thinking of getting an electricity monitor. I am sure they are mostly at their best when you use them to monitor the kwh consumption.

However it would no doubt bug me the cost feature is either redundent or at best not really an indication of cost.

Are there any that support being programmed with two tier price information?

OK it still wouldn't be bang on, but over a month or quarter you should get a much better idea of your actual cost if they do.

Otherwise thinking the OWL CM119 looks OK. I already have a individual plug in device.

At least with th OWL I could worry even more how much my conservatory under floor heating (electric) is costing me :rolleyes:

Also do any shop chains tend to stock these? DIY stores?

TIA
Graham

Magentasue

Most people just use the lower tier cost arguing that the difference amounts to a standing charge.

I took my usage from last year, worked out the cost of the tier 1 units and costed the rest at the lower price. Then I divided the total cost by the total number of kwh. My unit cost works out at 12.5p so I use that.

1carminestocky

If you simply must have the exact figure, do as I did. Find out your annual consumption, work out the total annual tier 1 charge, the total annual tier 2 charge, add the 2 figures together and divide by the annual consumption figure.

KimYeovil

Just use the Tier 2 price for all units and work out what your effective monthly standing charge is.

Eg, if your prices are Tier 1 18.25p, Tier 2 12.35p, 225 kWh tier 1 per quarter

then Tier 2 - Tier 1 is 5.90p
effectively quarterly standing charge is 225 x 5.9p = £13.275 per quarter or £4.43 per month.

Once you have this monthly cost you know you will be paying up to £4.43 each month plus the 12.35p per unit.

If you do regularly use less than 75kWh per month (42kWh/m 125kWh/qtr for British Gas) (not too likely where you have underfloor heating!) then guess at the fraction. eg, 10kWh is a bit less one seventh and £4.43 is a bit more than £4.20 so a seventh is 60p. Of course, for accuracy if you are regularly consuming a small amount, you should work with the quarterly figures instead.

GSB1

Thanks guys. I take it there aren't any devices that can do this then, but your suggestions on how to work around it are all good. Cheers.

Bongedone

My plug in meter has a space for both tariffs but my smart meter does not.