[svandamme]

yeah, and it get's better

let's say the install has cost me 10 K , good for about 2960 Kwh a year
i get a 610 subsidy from the city
I get to deduct 4K off my 2011 taxes

So my initial investment is already reduced to 5380 euro right here.

For that money i get to use up the 2960 Kwh i produce. ( current value of about 5-600 eur per year, that's what i pay now for it off the grid)
But also get Green certificates worth 270 euro for each 1000 Kwh i produce per year. (guaranteed for 20 year), so that's about 810 a year

Realistically, the whole thing is payed for after 4.5 years. And anything after that is pure profit.
And those 4.5 years is based on current electricity prices.. I'm sure the ROI will improve as prices go up..
It's a friggin no brainer if i ever saw one.

I have about the amount i need, so i would not have much surplus.. but if i do, i can sell it at going rates, it's an automatic thing, don't have to do anything, i just get billed or refunded.