We had many days this winter just gone where my 6kw of solar...

We had many days this winter just gone where my 6kw of solar couldn't charge my 5kw battery.

Sure long sunny days are great ... but you are also now assuming folk are at home all day when the sun is shining, that they live in property that allows for solar on the roof and that they can afford to buy more than 5kw of solar after dropping big doollars on a new EV and a charge point on their home.