Incorrect information on quotation - solar with battery storage

EnergyUser

Early in 2021 I approached a local company for a quotation to install a solar pv system on my roof with battery storage. At the time I didn't know much about the technologies but I believed that they would reduce my running costs and be an environmental advantage. Although I didn't know much I had heard good things about a certain brand of battery storage so when I requested a quotation I specifically asked that the battery was of this type. The sales person visited my home and in due course I received a quotation. Initially I didn't accept it because the battery was smaller than I had asked for so I asked for a quote for the larger storage. On both quotes the details of the actual solar panels were the same with just the battery differing and of course the price. So I went ahead and placed my order on the form provided which showed the details of the system from the quote. After a delay for the elements of the system to be available the system was installed in August 2021 and has seemed to perform well since then.
However recently, and due to me gaining knowledge about systems, I have realised that the system installed is not the system as described on the quotation and order form. Specifically the rate of charge and discharge of the battery was stated on the quotation and order as 3600W. From the data available in the app that is used to monitor and control the system the charge and discharge rates are 2600W.
I have therefore contacted the company about the situation via its support team who said that they would pass the message to the original sales person. That request has now been answered by 'The quote is a bit misleading, he had a 3.6kw inverter with an 8.2kwh battery storage, the battery discharges at 2.6kwh so our quote is probably worded incorrectly '. Additionally the sentence that followed is 'Im sorry for the inconvenience of this, please don’t hesitate to contact me if you have any other questions'
So it seems that they accept that the quote was 'misleading' and 'probably worded incorrectly' but seem OK with that. But they seem not to have delivered what was ordered.
What do others think about that response?

Kiran

So, I don't know what your quote actually says, but if the quotation is for a 3600W and you have a 3.6kw inverter, the two do correlate correctly. The 3.6kw should be the peak charge and discharge rate, it can be higher or lower too. The batteries have levels of charging and discharging so you may well find that you have power going to the grid whilst the battery is still being charged (if that make sense). To be honest, the smaller inverters were done by a lot of solar companies. I think, but will stand to be corrected, the larger inverters are more paperwork. I had a 6kw inverter installed as it allows you more flexibility with using your stored energy. It was a similar issue with people being told what their battery capacity was when in reality you can't use the last 20% of the stored power.

I think it was poor sales to sell you the system in the way that they have but my gut feeling is that their quote is probably accurate