As far as I can see the panels in the second pic are solar heating though, the best move you can make in terms of bang for your buck but not much good for running miners You wouldn't get a whole lot from a turbine that size either but they're well worth experimenting with because they've often a far better return on investment time than bigger units and energy storage is far more manageable. That's an area often overlooked, you can have a serious surplus of power in high winds and even dumping it can be problematic and adequate storage can cost way more than the turbine its self.
All yours Stan!A bit jealous now, turning cold here at the mo and some sun would be nice
Big one! 
Not feeling much warmer on the outside yet but much more cheery on the inside 
My suggestion would be to skip the wind generator. Wind generators will require maintenance and replacing parts, and typically, this is a lot more that what the manufacture claims.
You can get battery backup inverters for your situation. Basically, the solar will offset what you are using. If it has extra it charges the batteries. If you are using more power it pulls from the batteries. Basically, you save that .18 euro power. We don't deal with this much here, but check out these sites.
How do you calculate the perfect angle, I appreciate most people just stick them flat on the roof as is, I have often seen solar placed in what appears to be the wrong angles to get the most sun light, so what is the formula to calculate from your latitude and time of year, the very best optimum placement ?
I was wondering about the figures because its hard to find anything consistent, the manufacturers tend to be a little over-optimistic and there's a lot of outdated data but even then its regional, as far as I can see Ireland averages about 0.4kwh/day per square meter but that data's from about 5 years ago.
Ah, perfect angle...Sounds like you want a tracker. There are ideal angles, but then the real world comes in and says, the house faces here....make it work. If you have a flat roof, a ballasted racking system is typically 10 degrees, to put minimal weight on the roof. Residential, we are doing flush mounts on E/W and S sides. We don't put panels on north facing roofs, it just won't payoff. But we do run numbers based on where we 'can' put panels and then the customer decides if they want to go forward.
Utilities look at renewable energy as an added pain to deal with. They also lose revenue as more people add solar/wind. So they are usually negative about renewable energy. Funny that he mispoke and got called out on it. See my link above to answer your question.I mean erratic for the grid its self, not so bad for solar but wind really messes it up and makes loads very hard to plan. The head of the electricity board here made a laughing stock of himself a few years ago when he said wind power was "the wrong type of electricity", I guess he was just doing the best he could when explaining it briefly to non-technical folks
Sounds like it was well worth the investment for you
For off-grid systems we do use the solar panels to charge batteries. Solar panels are 18V for 12V batteries and 30V for 24V batteries. You can just hook the panels up to the batteries directly, but you do risk overcharging the batteries. So we use charge controllers. The simple version just shuts off the panel power when the batteries hit a certain voltage. There are MPPT charge controllers that accept a wide voltage(30-150V) so you can have several panels in series. They step this down to the battery voltage and also stop charging when full.