Solar Panels in Germany

I am in Salzburg, Austria.  I have seen Mozart's home and listened to many German tourists.  Today, we took a bus across the border and went to Berchtesgaden, Germany.  We took a long boat ride the beautiful Lake Königssee.  On the German side of the border, I saw solar panels on roughly 1/2 of the homes.  That's market penetration!    Soon we go to Munich where I will sample beer, pretzels and sausages.  My only complaint is the coffee.  I haven't seen a Starbucks outside of Vienna.