help explain my mams bill please

Mollymop5

Mam has not long moved into a 3 bed cottage with storage heaters.She's just using 2 night storage heaters downstairs to heat the house alongside a coal fire.This is her bill 29th sept - 30th Nov

Electricity summary Electricity
Tariff - Super Tariff / Payment On Receipt Meter:
Day
29/09/10
28825
Customer reading
27/11/10
29248
Customer reading
423 kWh first 125 at 23.200p
next 298 at 15.390p
£29.00
£45.86
167 kWh first 167 at 4.300p £7.18
27/11/10
4023
Customer reading
29/09/10
3856
Customer reading
Night
0 kWh first 0 at 5.590p
27/11/10
0
Customer reading
29/09/10
0
Customer reading
Heat
Other
Heat 29/09/10
99988
Customer reading
27/11/10
1514
Customer reading
1526 kWh first 1526 at 5.590p £85.30
Cost of electricity used this period £167.34
VAT at 5.0% on £167.34 + £8.36
Electricity charges this period + £175.70
Amount to pay £175.70

we thought the heaters used night time electric and stored heat to let out through the day.from looking at the bill is mam not using most electric during the day?

Can anyone help explain please.

molerat

The bill shows 423 daytime units, 167 night units and 1526 heat units. The day & night units combined are around average, around 10 per day. What tariff does the bill say she is on (looks like E10 / heatwise where the heating circuits are on 3 times, afternoon, evening and overnight) and how many readings are there on the meter ? Was a new meter fitted in September ? Who is the supplier ?

Edit NPower Super Tariff ?

Read this https://forums.moneysavingexpert.com/discussion/2898808 should explain a lot.

Mollymop5

There has been no new meter.She's with npower and just checked she's on super tariff.
There are 4 readings on the meter
day
night
heat other
heat

is it worth ringing npower? is she on the best tariff?

molerat

The problem with the super tariff is that the comparison sites do not show it and there are only a few suppliers that will do it. It is dearer than economy 7 but has the advantage that the heating and hot water are given a boost during the day and evening at a discount rate. It may well be cheaper to boost the storage heaters a bit rather than use the coal fire too often. It has cost her £89.56 for heat and hot water for that period.

Mollymop5

thankyou for all your advice