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by takanori 2427 days ago
This was my thought as well. Nothing like a crisis to spur invention. I did the math on a power wall. It’s too expensive to be feasible. Two units with installation cost $20K. That doesn’t include the solar panels required to keep it charged. You can get a gas generator with similar capacity for $5K. Not to mention gas is typically readily available.
2 comments

Exactly right. I got a Harbor Freight generator, installed a natural gas carburetor and plumbed in a quick release valve on our outside natural gas line. It will run the whole house, including the gas furnace and water heater. I love the idea of battery backup for our solar panels, but it's super expensive, and the payoff is so distant the NPV approaches zero.
Wonderful. What would energy usage and air pollution look like if everyone did this? Decentralized energy production = horribly inefficient.
Totally agreed. This is for emergency use. I suppose sitting in the dark is better for the planet, but I would really rather my freezer not spoil.
Indeed. I hope the climate activists are taking this opportunity to learn about human behaviour once a situation is deemed an emergency - everyone will do whatever it takes, whether it's run a cheap (and, I assume, highly polluting) ICE generator, or burn wood in an open fire, to keep their house warm and food on the table.
how about coupling your BEV (if you own one) to your house to maybe require a smaller battery? not trying to solve this problem there, but rather to encourage people to view this as an opportunity. i know that if power outages were to become common, i would be willing to spend money to address this problem for me and my family.