I have a 5 Panel Back up emergency 1.2kwh power supply even though we have 100% Hydroelectric power in British Columbia Canada. It can slowly charge up Leaf EV. My province ends up selling it's excess power down to the US. The only issue is that it is expensive to install.
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Having a backup is always a good idea!
Expensive initially perhaps, but in the long run it can lower the cost by buying less from the grid. How does Canada go regarding hydro-energy costs compared to fossil fuels? IN my country sell prices are linked. Fossil fuel prices up, grey energy prices up, green energy price up. Kinda interesting they coupled grey and green energy prices.
There is sufficient Hydro-electric capacity from the various generator dams all over British Columbia with the excess sold to the US, but with a growing population and more EVs there will be a point in the near future that demand exceed supply. A lot of variables play into the price of energy. Though the actual cost is $0.12/kwh it is the bevy of taxes, delivery charges, administrative charges, fees, CARBON taxes, Value added taxes and surcharges it still works out to somewhat less expensive than fossil fuel energy.
The 12$c is just below the average green energy charges in my contract. Somehow I would've thought my prices were way higher than Canadian. Perhaps the delivery charges and taxes are higher 😉 In the end my energy bill is 3x to 4x of the raw price of my electric consumption.
Longing for the days energy itself has a zero or an almost zero cost element. Something I do believe we'll be able to achieve, throughout the world. More precisely, we must achieve such to boost freedom to all on our planet. Electricity is something that is become so core to our existence that it is a requirement to survive. We are not there yet. But perhaps in a decade or two, or three. Time will tell 😉