Comment by RisingFusion

In Germany, 405 Watt panels new can be had for 65 euros. The law allows up to 800W to be connected to homes with relatively little bureaucracy, as a balcony solar power plant which renters can install without modifying the building. This seems to have pushed the price down, so there are many 800W kits including panels, an inverter and cables available for under 400 euros.