Hi All,
for those that may be interested in reducing their running costs, I've just changed over to a lower rate tariff similar to that of Economy 7 in UK, although here it runs for 14hrs of the day at 1/2 price. It has reduced our bills by 50e in the first month! So well worth considering, in fact, have been inundated with requests from neighbours to change theirs over too.
We are with Iberdrola, but I believe most of the companies offer the scheme, in summer the cheap rate runs from 11pm to 1pm the following afternoon, so if you're running air con/heating, washing machine or water heater, it offers significant savings.
So if you're renting out your property it's certainly worth investigating!