I cannot rate OTI Power highly enough, after a year of investigating solar for our business premises and dealing with very sub standard suppliers and inadequate product that was over priced, we came across OTI Power. Their customer service is far superior than any competitor, a system that was scoped correctly from the onset and installed with precision. We immediately can see the benefits and can be monitored from the apps installed on our phones and to know this will pay for itself in just four years is the best business decision we have made. I cannot rate the end to end service solutions enough. We have also gone with OTI Power for our home. Also to be informed we get a 25 year warranty!