Watt vs Watt Hour - https://www.techtarget.com/whatis/de...s%20per%20hour.
You may produce 1kW of excess power at any moment in time, if you do for one minute, then you will have generated 1/60 kWh.
The car chargers need 1.4kW (and some of them have a higher requirement!) of excess power from Solar to be able to start charging. So if at a moment in time your house is using 500W, and the sun really pings brightly and your panels (let me guess 8 panels @ 330Wp (peak production) ~ 2.6 kWp ) completely max out, then you will be generating 2.1kW of excess power.
If that 'moment' lasts for 1 hour, then your car will be able to take it all for that hour, meaning your car now has 2.1 kWh more in the battery than it did an hour ago.
The excess is "instanteous" - not per hour / per day etc. Only when there is >1.4kW (not watt hour) of power available will the car start charging. As above, you could produce over 10 hours 13kWh of excess energy, however not one unit of that would enter the car if it was a consistent 1.3kW of excess power over that time.
You may produce 1kW of excess power at any moment in time, if you do for one minute, then you will have generated 1/60 kWh.
The car chargers need 1.4kW (and some of them have a higher requirement!) of excess power from Solar to be able to start charging. So if at a moment in time your house is using 500W, and the sun really pings brightly and your panels (let me guess 8 panels @ 330Wp (peak production) ~ 2.6 kWp ) completely max out, then you will be generating 2.1kW of excess power.
If that 'moment' lasts for 1 hour, then your car will be able to take it all for that hour, meaning your car now has 2.1 kWh more in the battery than it did an hour ago.
The excess is "instanteous" - not per hour / per day etc. Only when there is >1.4kW (not watt hour) of power available will the car start charging. As above, you could produce over 10 hours 13kWh of excess energy, however not one unit of that would enter the car if it was a consistent 1.3kW of excess power over that time.
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