HI. I'm comparing energy suppliers to save money due to the price increase.
However, the estimated annual usage I put in based from my last statement gives a different figure to those online. ie, if I look at My Current estimated cost in Change Tariff on the PP app it gives me £1,008.71. However, by using the figures on my statement, the online figures are essentially saysing it's higher than that. Can you give me the wattage figures you would use so I can get accurate comparisons please?
I have got the start and end figures between this year and last year, but the calculations on the statement say we can work it out ourselves but I have no idea what volume correction and calorific value is as it doesn’t tell me on the statement. Any help would be appreciated.
Best answer by woz
hmmm….at the risk of sounding patronising, you’re slightly overthinking this here is why
The figure for your annual usage estimate is just that, an estimate, if over the year that you’re with PP you use less or more you’ll pay for less or more (eventually). Only the unit price is fixed, not the amount you would eventually pay (I say eventually because the DD will remain at the same value unless you use a lot more or less then it would be reviewed to be higher or lower - but your balance will fluctuate from month to month).
What’s important here is that when you compare quotes from anyone you must always use the same consumption, it doesn’t have to be exact.
Neither is it necessary to do any calorific adjustment conversion, unless the only figures you have to go on is the volume of gas used over a year, in which case you would use an average calorific value (39.4 or 39.5 are my favourites) or better still use THIS
The kWh figure you get will be near enough for your quote. (You’ll get far more variation in usage than the likely error the 2% variation in CV would give you)
Finally, if you find a difference in quote for the same figures and area it will be because some of the comparison deals have a slightly lower standing charge than going directly to PP (for example £5.50 a month compared to £6.67 a month) but (unless things have changed) you’ll find the unit prices are the same.
If you want to be on the safe side with no surprises when you get your quote us an annual figure 5 or 10% higher, or if you’d rather worry about it later use a slightly lower figure. Either way it will come right in the end.
Does that help at all?
Oh I forgot to add, if you’re using figures from previous bills the most accurate figure will be after you’ve been with a provider for a year. Imagine you joined a provider in April, and the annual was quoted after say 5 months, you’d show a hugely reduced estimate because you hadn’t been through the cold period yet. The energy co. doesn’t know how much you’re likely to use when it’s cold until you’ve been there.