I was pointing out the faults in Powerwall and that information came from a solar installer, not me. If you care to check , they are not the only ones that have issue with Tesla, one thing to consider is Musk is a salesman who is extremely good at prising money out of investors and governments.
The solar farm was an experiment in an ideal location that has failed miserably and yet the Queensland government is going ahead full bore on new projects. Interestingly enough most are a long way from the coast. My sister lived in Mackay and later Alligator Creek and was unable to get insurance if she had solar panels installed.
System was installed in 2011, I think the inverter is a Sun and I kept the reading for the first year, unfortunately my computer self destructed and I only have reading from the first week of Oct 2011 to July 2012.