5. Good luck getting hold of any solar panels, controllers, storage batteries etc. I work for a big solar installer in Germany and we only have supply because we have had a guy on the ground out in China for the last 2 years working flat out fulltime to build up warehouse stock and accompany deliveries to the port to ensure OUR crates get on the ship. Most of the other cos are struggling and many cannot do installations at all right now. Logically, prices are higher and can only go upwards for the near future.