The elephant in the room -- unfortunately, there cannot be enough batteries made to support this. That is why I invested in Tesla -- don't care about EVs, but the battery play is good! Backup power for personal/family use? I use a Firman generator - 20 litres of fuel per day of operation at load. (here, $30 Canadian). Since the generator was only $300 and load is 3000W, this is a much better deal for me. And... at the rates being bandied about here... if anyone EVERY offers, say, $1/KWh - That grosses me $70 per $30 of gas. I would take that incentive. Note that the generator would pay for itself every 10 days by my reckoning.. And the recycling of the motor is already a solved problem. So... $1/KWh is way too much. $0.50/KWh is also too much (and note that my gasoline pricing is around $1.50/litre at the pump -- $22.41 US for 20 liters ...

So the actual amount should be around 32 cents per KW/h... 50 cents work fine because that factors in "wear and tear" -- do those numbers work for batteries? Of course, buying electricity is 7 to 15 cents/KWh here.

I would want LiFePo4 for this application; at current rates, a 10KWh battery runs $10,000. From that, I determine that I can "just" buy much more effective gas/natural gas/propane burning generators. Something like the Generac 6551. Natural gas is .23/c3 or around $1 for one hour of 7000W operation... actually looking competitive with electricity grid rates (except wear&tear on the generator).

Note that I do have a hybrid car. So, not "anti-electric" by any means. I just don't think that enough batteries can be made for this application. Certainly NOT be 2030 (6 years? Oh really?)