The guaranteed service life of 20 years for photovoltaic generators and their exposed installation sites as well as the sensitive electronics of the inverter really require effectivelightningandsurgeprotection.Itisnotonlyhouseownerswhoinstallphotovoltaic(PV)systemsontheirrooftops,butalsoprivateoperatingcompanies,whichare investing more and more in shared systems, which are erected on large-surfaced roofs, on traffic structures or on unused open areas.