181–190 of 424 posts
I wonder how much there is left to reduce costs? 98% cost reduction for physical chemical products is pretty good. And many additional gains are likely increased complexity...
This is important to keep in mind when you read articles and/or studies about how electric cars or wind or solar power is impractical. A lot of the data these studies use is just obsolete. Say you have an opinion piece in a news paper that says that electric cars will always be expensive toys for the rich. It relies on a scientific paper published in a technical journal 2 years ago. The scientific paper does not perf…
This is simply not true. I'm sure there are some bad articles out there but that's true for anything.
See e.g. https://www.cell.com/joule/pdf/S2542-4351(18)30386-6.pdf where they authors find non-intermittent power production to be necessary even under an assumption of a further 75% drop (from 2018 levels) in battery prices.
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I’m not sure about regulations in the US but in The Netherlands you cannot just attach a battery and think you are independent of the grid. To protect the net and people working on the net, power sources behind the meter must disengage when the net/mains power drops. This effectively disables your independence plan. If you want to be independent you have to get some expensive mechanism installed that will decouple yo…
Transfer switches are standard for pretty much any generator setup. An automatic one is a bit more expensive, but hardly a deal breaker.
Some maneuvers made on a 5” quad can pull more than 100 amps on a 6S, 22V battery. That is around 2,200 watts—more than most consumer microwave ovens! The fact that a battery weighing no more than half a kilogram can supply this much power almost instantly is truly remarkable.
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I’m not sure about regulations in the US but in The Netherlands you cannot just attach a battery and think you are independent of the grid. To protect the net and people working on the net, power sources behind the meter must disengage when the net/mains power drops. This effectively disables your independence plan. If you want to be independent you have to get some expensive mechanism installed that will decouple yo…
I agree with what you said but it seems you may have meant to reply to a different comment. Independence is another topic, certainly related somewhat, although it didn’t come up in my comment... interesting nonetheless.
So without additional Equipment just having solar and a power wall wouldn’t help during outages.
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Collision avoidance, speed limiting, adaptive speed limiting, adaptive headlights, lane keeping, blind-spot warning, ISO-FIX anchors, far stronger pillars, reversing cameras, lane exit monitors, SOS buttons and GPS reporting, far more air bags, door-cyclist collision warnings, seat-belt pre-tensioning, some have pre-collision suspension raising, etc, etc, etc. I just went from a 2009 Land Rover to a 2020 Land Rover,…
Don't forget TPMS! Probably one of the best safety-to-dollar-spent advancements in the last *13 years
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Don't forget TPMS! Probably one of the best safety-to-dollar-spent advancements in the last *13 years
Interesting. What makes you say that?
"271 fatalities and over eight hundred injuries in the United States with more injuries and fatalities occurring internationally" and would have been detected by a TPMS which costs a few dollars.
I wish I could buy at this price. Maybe for some large manufacturers. If one is shopping for eBike batteries privately for example the price is sky high comparatively.
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The 2015 Leaf has the worst battery degradation of any EV. That's Nissan's fault. However, battery prices are going drop further. Your Leaf has a 24kWh pack. At the current $100/kwh price, thats $2400 for a completely new battery. In the future I'm sure you could get an even higher capacity replacement.
That might have been an intentional choice if they knew either they'd sell to suckers and leave them on the hook for the new battery, or have to subsidize a new battery in 5 years, knowing it would be cheaper, like writing a call on batteries.
Rapidgate was a thing, the battery heated up when driving, you stop to recharge -> battery heats up even more -> overheat -> limiters engage and you're charging at hand crank levels of power.