Amortisation

When a photovoltaic system has delivered more yield than it has cost for the first time, one speaks of amortisation or payback. When this is the case depends on the system, the solar radiation and the running and completed costs. The efficiency of the PV modules, the size of the system and its location play an important role. But the development of the electricity price and laws on feed-in tariffs are also factors that you should take into account.