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I have a p.v. system at home, not the maximum power possible but enough for my needs. With an EV I'll have to spend around half the price of the new EV for augm
by kkfx 5y ago
I have a p.v. system at home, not the maximum power possible but enough for my needs. With an EV I'll have to spend around half the price of the new EV for augmenting my solar part of the mini-plant with a life expectancy of solar inverter around 10 years and for the car from 5 to 8 maximum. After that time car battery got buried somewhere in the third world since we actually have no recycling strategies and I can only recharge from renewable if I do not use the car much and one day yes another no since I produce electricity only during the day.
That not counting the environmental damage provoked by mining for solar panels and batteries. Not counting the fact that we already have issues satisfying electricity demand without much EV on the roads.
Sorry, I'm an environmentalist and an engineer, I know people like dreams, but I also know what we can have, so far the proposed new deal is simply a disaster. I've built my new house well insulated, with actual green standard, because that's a good and doable thing for those who can afford doing so and now I consume far less energy to heat/cool the house, that's good. If gas prices goes up a bit more I might benefit economically from an EV but that's not a green in environmental sense of green, that's dollar green. First we can't rebuild in a decade the 99% of existing buildings to lower energy consumption, it's good going fast in that direction, but we can reach that goal perhaps in a century, and "we" means in the western world only. That's do a good job for us, but it's only a part, even if big enough, of our energy needs. We have industry needs, transportation needs. For industry actual best option is nuclear (constant production per nearly constant demand in developed industrial systems) witch also work for ships, even if is hyper expensive. Some goods can probably be transported by intermittent rail service that move goods only when we have energy, but such commercial-only network is to be built and is a colossal and not flexible at all solution so probably not even worth the investments in environmental terms.
The sole Green New Deal I see theoretically possible is with a mass genocide that kill a large slice of humanity in very short time. With that scarce resources would be less scarce and so we can probably last longer enough to evolve if the reduced number of humans suffice to produce technological advancements witch is a bit uncertain, morality aside. Not counting the little issue of dealing with billions of death in a short time span and resulting social and biological consequences.
Really, try to imaging, to dimension a bit a possible new society and draw your conclusion, I've done that with what I know and that's what I conclude, I'm curious about others opinions. Remember in the game that even our small p.v. plant in modern houses are not born in the backyard and the supply chain and industry behind them need to been able to exists forever if we want to live with such model. Similarly EV does not born in our garage. Just to say I can produce around 25kWh/day in moderately good days, I use around 12kWh for my house in mean, try to design a recharge pattern for an EV. Extend the computation for actual population density and needs. Try to determine how much TWh we consume in gasoline for our cars and how much renewable we need just to recharge a hypothetical equivalent fleet of EVs. Do such basic and approximate math. Add to it, even if it's not needed, the energy we need for industry and for heating/cooling. Really try that instead of dreaming or swallowing advertisements like most do dreaming a miracle car with a solar roof that run autonomously as the owner wish.