But its only a thought... its probably too hard to achieve.
Sometimes individual non-industrial customers may get direct contracts with the power companies but it will cost extra if it requires investments in the infrastructure and only for high usage.
As for Germany, it doesn't lie in the middle of the Sahara desert, using solarpower is (especially in that part of the world) more expensive unless one relies on government subsidies.
Of course the solar power costs are getting lower over time, as the technology is becoming more common, manufacturers are finding ways of making it cheaper and more efficient.
As for that graph above, price electricity in Poland is of course dependent on the place but it is generally more expensive, and definitely more expensive than France (I have live in both countries, most of the electricity (~90%) is derived from nuclear power stations, in Poland there are none).
Yes, i didnt mean that i want to build a solar plant... i only said that the amount of solar power flowing into the market is pushing the power price down in the exchanges. I believe i read that is mostly because the solar panels run once the investment is done... nearly no cost is following by running them after that time.
There are some communities in germany too that can give their members, mostly a small village, cheaper power. But the power cost is in no where near the $0.02kWh Dalkore gets...