SMA have a replacement service as well as most other inverto’rs but I like SMA the invertor’s are very good easy to install to commision a system you just knock the invertor’s on the side of the invertor no fancy switches to stroll throu, its a nice and easy install with super reliability. They have a product for every type of invertor there is
SMA have sales of of €1.7 billion in 2011 and is the main player in PV plants and management. They are based in Germany have just under 6000 staff world wide.
For small and mid-range systems small domestic to big Commercial they have it all
The prices are quite cheap for the performance you get up to 98% efficiencies