In 2014 we installed 5.4 kW of solar modules on our new house. These are glas-glas photovoltiac modules (multi-crystalline silicon) from CentroSolar which should allow to have a longer lifetime exceeding 25 years. The inverter is from SMA and again all major components of this PV installation are produced in Germany to create local value.
The PV system including modules, inverter, cables, support structure, installation and connection to the grid was 10.000 €, less than the carport for our car. The PV system serves our own electricity needs in the house and produces warm water with an efficient heat-pump. Only the remaining power which is not consumed is fed back into the public grid. This installation produces enough electricity to cover our net consumption of electricity and heating for the next 25 years. Quite amazing!