I know this wont help people who are not in a postion to read their own electricity meters for whatever reason, but following on from what to us was an astronomical bill from Sevillana-Endesa (560 Euros) for the period Nov 16 to Jan 16, I decided to keep tabs on our useage just to see if we could make some savings somewhere and also to keep tabs on Sevillana-Endesa who clearly aren't averse to overcharging...As it happens their bill was correct, but it should be noted that we are all-electric with the exception of a Gas Hob, the house is 'active' 24/7, we are halfway up a mountain and so heating figures highly in the costs.
So, here for those who can read their meters is a step by step guide on How to Calculate your Sevillana-Endesa Electric Bill.
(I would imagine the same holds true for Iberdrola and any other supplier since the bill always includes the same basic information.)
a) From your last electricity bill where the reading is an actual rather than an Estimado, make a note of the actual meter reading.
b) Take note of todays actual meter reading
c) Subtract a) from b) to find actual units used during this period.
d) Calculate number of days between last actual reading (from last bill) and the date of the reading taken at b).
e) Divide number of units used by number of days to obtain an average daily use.
f) Multiply total number of units used by cost per unit. (Note that cost per unit is dependent upon your contract; If you have a 25A circuit Breaker installed as your Main Incoming C/B your are on a 4.7KW supply and the cost from Sevillana is 0.101159Euros per unit.)
This gives the base cost of electricity used between the date of the last bill and the date of your first reading.
g) Next, take daily readings of the meter until a period of 1month has elapsed since the last actual meter reading taken by Endesa.
h) Calculate base cost of electricity used during that total 1 month period.
Now for the 'Gotchas'
i) To the base cost add Electricity Tax (Impuesto sobre electicidad) at 4.864%
j) Next Add Meter Rental (Alquiler Equipos)
k) Next Add 1 month Standing Charge (Termino de Energia) again this depends on your contracted use but in the case of a 25A supply is 7.54 Euros.
l)Next add VAT (IVA) at 16% to the total sum.
k) This final figure will give a ball park figure for the total cost of the electricity used and what you should reasonably expect to see as a final figure on your next bill; I say ball park because of a couple of variables...my account seems to always include a small amount of 'Consumo Gratuito' whereby a very small amount is deducted from the bill, but against this is an equally small amount added onto the bill as an excess charge (Recargo excesso consumo); it seems strange that they can both appear on the same bill but such is life...(Especially in Spain it seems!)
Also please bear in mind that Electricity charges went up on the 1st of January; this increase has not been taken into account because I cannot establish just what the new figure is (and again it will be different depending on your contracted useage. (When you know what the new figure is calculate the % increase and add it to the total sum; it wont be a million miles out!)
I put all of this into an Excel Spreadsheet and by more judicious use of the heating we have managed to cut the bill by about 30% for the period Jan16 to Feb16.
However under the new revised Scheme of Things this next bill will be an estimado, so I guess Endesa will just use last years figure for the same period in which case we will have another large bill; and of course Endesa will extract the money from my account before they send out the bill; I will then either have to argue the figure with Endesa or wait until the next accounting period Feb 16-March 16 which according to the blurb from Endesa will be an actual rather than an estimate...
On a slightly different note I am one of those people who have found it impossible to get endesaonline registration; it wont accept my NIE number as a valid fiscal unit and if I put in my passport number it tells me that my contract no. is incorrect! So I have completely given up on it.!
Hope this is of some help to someone;
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