baz1946... 'twernt me honest gov! Perfectly good response so far as I can see.
john123... Just had a look at my leccy bill for the same period... 230€, but lets not lose track of the fact that of that your bill of 190€ is inclusive of potentially up to 70€ which would have been payable anyway whether there was anyone in the house or not. Almost certainly someone has been running the airconn hard...
The standing charge for that period would have been between 40 and 50€ depending on your contracted rate which is payable whether anyone is in the property or not and VAT (IVA) is payable at 21% on the sum of the standing charge, the actual consumption charge and the special electricity tax which is calculated at 5% of the sum of the standing charge and the actual consumption charge. In my case the standing charge was 57.51€, the consumption charge was 122.26€, the special tax 9.19€, and a meter rental charge of 1.14€. VAT (IVA) at 21%, adds a further 39.92€. So, even if the property had been empty for the whole period you would still have had a bill for around 60-70€.
Things will only get more expensive now that the supply companies have jacked up the standing charge rate and the consumption charge
To be honest, I dont think airconn is a necessity down on the coast be it on the Costa del Sol or the Costa Blanca, it's an unnecessary and very expensive to run luxury. Its invariably 10 degrees cooler on the coast tham inland especially in the Jaen, Granada, Cordoba and Sevilla areas where summertime temps hit 40C and higher between May and September. It always stikes me as odd that holidaymakers pour onto the CDS and CB from the UK to 'get some sun' and then promptly turn the airconn on because they cannot cope with the heat!
As an alternative to fitting an additonal PAYG meter, why not vary the terms of your Rental agreement with your client(s) and add a 100€ part refundable deposit to cover the costs of the electricity (and water) they use during their stay?
As another alternative, some little while ago someone on this forum was talking about a movement sensor device which can be plugged into the socket where the airconn is normally plugged in. If no movement is sensed during a preset period of say ten minutes the airconn unit turns itself off...
Just a thought...