Steven Matthews (Wicklow, Green Party) | Oireachtas source

My experience is that solar panels have a life expectancy of 20 to 25 years along with the inverters. The difficulty that might arise is with battery systems, but batteries are not required in all installations. It depends on the make-up of the household and when power is used. People need to consider that carefully. A payback period of seven years for something with a 25-year life expectancy is quite good and electricity costs are only going to go one way.