justchecking123

Thanks very much for everyone's comments and input. I raised all this with the company, and they agreed that the marketing was misleading but assured me that it was not intentional, but rather a matter of tech people writing the marketing material. Their site has been updated and they've committed to replacing my inverter with a 6 Kw (AC load) model.

So, I just took a good look at the contract and this is how it is specced in there. Does this qualify for what was delivered? The second pic is how it is advertised.

Thanks, guys. This is what I suspected. I assume this is how they trick people, since they usually do the installation and then stick the whole thing into a box that prevents you from seeing what equipment is actually in there. I'm now torn between demanding they bring me what I paid for, or cancelling the entire deal, since I don't want to deal with untrustworthy companies. The worst part is that this is supposedly one of the top rated companies in the country for solar contract deals.

Hi guys I recently signed up for a deal with one of our big name installer/contract solar companies. They advertise a 6,5Kw system, with 10Kw batteries, and 12 panels. I managed to get a good look at the system before their custom closed box was fitted over it, and I noticed that it contains a Goodwe GW5048D-ES and four Pylontech Us2000c batteries. I'm not very clued up on these things, but I looked it up and this Goodwe inverter offers 4,6 Kw backup, while the four batteries only offer 9,6Kw of storage. Am I being pedantic and is there some magic calculation I am missing, or am I being ripped off? When I queried it with the installer, they claimed that the inverter's rating is due to it offering a mix of AC and DC, and there is a calculation which brings it to the advertised 6,4 Kw, despite the below specs: Model GW5048D-ES Battery Input Battery Type Li-ion or Lead-acid Nominal Battery Voltage 48V Max. Charging Voltage Max. Charging Current 100A Max. Discharging Current 100A Battery Capacity 50 to 2000Ah PV String Input Max. DC Input Power 4600W Max. DC Input Voltage 580V MPPT Range 125 to 550V Start-Up Voltage 150V Nominal DC Input Voltage 360V Max.Input Current 11/11A Max. Short Current 13.8/13.8A No.of MPP Trackers 2 No.of Strings Per MPP Tracker 1 AC Output (On Grid) Nominal Apparent Power Output to Utility Grid 4600VA Max.Apparent Power Output to Utility Grid 5100VA Max.Apparent Power from Utility Grid 9200VA Nominal Output Voltage 230V Nominal Output Frequency 50/60Hz Max.AC Current Output to Utility Grid 40A Output Power Factor 1 Output THDi <3% AC Output Data (Back-up) Max.Output Apparent Power 4600VA Peak Output Apparent Power 6900,10sec Max.Output Current 20A Nominal Output Voltage 230V (+/-2%) Nominal Output Frequency 50/60 (+/-0.2%) Output THDv <3% Efficiency Max/Efficiency 97.6% Max.Battery to Load Efficiency 94.0% European Efficiency 97.0% Protection Anti-Islanding Protection Integrated PV String Input Reverse Polarity Protection Integrated Insulation Resistor Detection Integrated Residual Current Monitoring Unit Integrated Output Overcurrent Protection Integrated Output Short Protection Integrated Output Over Current Voltage Protection Integrated General Data Operating Temperature Range -25 to 60 degrees Celsius Relative Humidity 0 to 95% Operating Altitude <4000m Cooling Natural Convection Weight 30kg