Good News & Bad News, page-756

I drive on average about 20 km a day. For me minimal. I’ll just pluck a couple of approximate figures here for some more normal average driving of a soccer Mum. Maybe 50km p/day.

Tesla model 3 plus. 62kW battery with 386km range. 50km is approx 16% of total range. 16% of 62 is approx 10kW Haven’t accounted for any losses but that is a rough guide. So 20kW will get about 100km. Seems perfectly reasonable to me. Most people just drive in an urban environment most of the time.

Lets do the sums for an ICE at 50km p/day. Let’s assume an average fuel consumption of 7 ltr per 100km. So 3.5 ltrs x $1.50 = $5.25 in fuel.
If charging EV from grid assume 25c kw x 10 = $2.50.
EV wins hands down even with no home ESS and solar for vehicle running costs and I haven’t even touched on maintenance.

Let’s also assume 2 car household so 20kW would be needed possibly.

Now in regards to what size ESS. That is going to be subject to the household. Really could be a big range depending on lifestyle choices etc.
I have a pool but will change that to solar with dc motor when current ac pump sheeets itself. Hot water is solar also. Off grid would be a big decision. No backup there if your system craps itself. Ok for me I have technical skills to repair it myself. Size for me I would be happy with 20kW taking into account our 2 vehicle low km usage and general use.

Also I think the future involves micro generation from urban environments so staying connected to the grid would be my choice.

I have plenty of roof space left and intend to use it. Apologies if I’ve rambled but hope there is something useful in there. Just IMO.

DYOR