May the sun shine

My aunt and uncle in Germany now have solar panels on their roof. Hip, hip, hurray! It did cost a bit of money and depending on the sunshine they get or not it may take 20 years to amortize the expense. Since they produce most energy during the day when they are not at home the power gets fed into the network. They still receive their electricity as usual and pay the bill for it. From the power company they get a cheque in return for the power generated from their solar cells. I asked them about their power bill but it's difficult to compare to ours because it is set up differently. They pay an annual fee and then for their monthly or bi-monthly usage. Since 1 KWH costs them 19 Euro cents I assume part of the fees might be included in the unit price. They receive 33 Euro cents per KWH solar energy. I'm sure it's subsidized. Next time I go to Germany I'll try to check out their power bills in order to understand them better. I remember reading a headline early that year announcing that Germany's power prices had gone up due to more renewable energy fed into the system which I am not too opposed to because with the unit prize they pay there's incentive to track your energy consumption and reduce it.