First off let me say that this would be a 4.5 star review if that was an option, but although I am very pleased overall, there have been some issues, so it can't be 5 stars.
First the good:
1. The Green Power Energy team has been very professional and I am happy with the design. I considered several designs from several installers and I did a lot of research. The equipment was a very good compromise between quality, power output and cost, and I think it represents the best bang for the buck. The installation was clean with no problems.
2. Green Power Energy promised me an tight install date before the end of 2019 which I wanted badly and other companies were not willing to commit to. Green Power Energy had to do some juggling, but they managed to meet my schedule, which was huge.
3. All of my questions were answered effectively and I felt like their people really knew there stuff.
4. Even in the dead of winter, the system is producing quite well, and I am fully satisfied with the output.
5. They kept their appointments and came when they said they would.
Now the bad:
1. The production meter, which is used to record production for SRECs was faulty and stuck on zero. I discovered this when I registered for an SREC account. Green Power Energy replaced the faulty meter shortly after it was discovered, so no real harm, but it does complicate the whole SREC production reporting process. Ideally Green Power Energy would have verified proper operation themselves immediately after turn on and avoided this issue. Still this is minor and I would not have lowered the overall rating just because of this.
2. There was an error made regarding the inverter. The wrong model was installed (6000 Watts rather than 7600) resulting in clipping. It was discovered simultaneously by myself and one of the Green Power Energy people during an optional review meeting to go over the installation. Boy am I glad I had that meeting, and I give credit to them for offering it. I was thinking that production maxing out at 6KW was because of the winter angle of the sun. Green Power Energy did replace the inverter soon after the discovery, to their credit, but, although they assured me that no data would be lost on the monitoring platform, two full days and two partial days of data have never been uploaded to the SolarEdge web site. We are still not sure why that is, but the working theory is that there it happened because of a delay in registering the new inverter with SolarEdge, although the tech who replaced the inverter told me he was calling it in. Someone dropped the ball. Although lifetime consumption is correct on the Solar Edge web site, and the inverter supposedly has the data stored, it has not been uploaded to the web. I am a Data Base Administrator, and a Computer Storage Engineer by trade, and as such I am trained to consider data loss to be something that to be avoided at all costs. So, I can't help but take this seriously. The mistake on installing the wrong inverter, initially should not have happened, but I can forgive it. The loss of data is something else. Most people might consider it a nit, but it is the real reason for me not giving 5 stars.
Summary: In spite of the negatives, I am generally quite satisfied and I think Green Power Energy may well be the best choice around for a solar installer.