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by HPsquared 39 days ago
Indeed, solar panels and EVs are the way of the self-sufficient rugged individualist. It's an amazing PR and marketing coup to make it the other way around and presented as something for "liberal weaklings" etc.
3 comments

Right, the set of people who actually pump their own oil out of the ground, refine it into something you can put in a modern vehicle engine and drive around on that is likely zero, but the set of people who own panels and storage so they can fill their EV includes my team lead, who is just some guy on a pretty average salary living on a modern housing estate.

The bio-fuel people at least make some kind of sense compared to fossil fuel "survivalists" - but again they're portrayed as just tree huggers!

I think 1600 watts of solar panels produces enough energy to drive an EV 12000 miles a year. Your car though would have to be always plugged in during the day. But probably 3200 watts would be enough for a car used for commuting to be charged mornings, evenings, and weekends.
> Your car though would have to be always plugged in during the day

Or just have a second stationary battery to store up the energy while you're away during the day.

Two cars, much cheaper than a second battery pack. And you have a supply of rolling spare parts.
This is probably the case right now, but I have faith the market will mature and fix that absurdity.
i was thinking used where you can get a Nissan Leaf which is a 75 kW, 20 kWh rolling battery pack.
That's no longer the case. You can buy Chinese rack batteries for prices approaching $100/kWh.
Are they UL certified? If so do you have a brand you can point me at by any chance?
> UL certified?

Not generally, although some are. The UL certification will put you at the top end of the $100 - $200 / kWh range I mentioned. Eco-worthy and UZ are two brands with such certification.

Will Prowse reviews a bunch of these.

Not to be picky, but 1600w is a really small solar system. These days a panel is around 500w.

Where I stay 8 panels is a "small" system. I have 20. In summer that generates 85% of my household needs. (It would be 100% but I deliberately only got a very small 5kw battery.)

In winter it's less (mostly because of heating requirements). But I have space for some more panels, so I'm running the numbers. (I'm currently getting 16% return on capital spent, and there's a point of diminishing returns.)

Obviously ymmv. There are roof, and land, constraints. There are financial constraints etc. But being off-grid, or partially off grid, is very possible for a lot of folk.

Just making the point that the cost of solar panels to power a car is a fraction of the purchase price of the car.

If the world can afford to manufacture 100 million light vehicles a year it can afford to manufacture the solar panels to power them.

>It's an amazing PR and marketing coup to make it the other way around and presented as something for "liberal weaklings" etc.

If there is such a marketing, then people relate to it because EVs are not suited for handling unpredictable situation. You got stuck in a ditch in the middle of nowhere at night, you loss all of your battery getting out of it, and now you are stuck. So you can't take it to unforgiving places.

EVs are great for boring commute that is it. I don't see it changing any time soon.

> You got stuck in a ditch in the middle of nowhere at night, you loss all of your battery getting out of it, and now you are stuck.

I find it interesting how you’re presenting that incredibly unlikely scenario as a serious objection to an EV when simply going off the road is a once in a lifetime or less situation for most drivers, much less precisely calibrating it so your vehicle is not damaged too much to be unusable but still needed a massive amount of power to get free.

That’s an interesting counterpoint to something which happens to thousands drivers every year: having a bad storm cause them to sit in lengthy lines waiting for fuel (this was weeks the last time I was in Florida) or, in colder weather, idling through a tank of gas while stuck waiting for ice to be cleared.

The EV also has a ton more torque to get out of the ditch, and can apply it at very low speeds.
A 4x4 with a 4L gear can give you all the torque you need, and it will provide it all day long.
>going off the road is a once in a lifetime or less situation for most driver

In my country, one don't have to go off road to get in that situation. Here I can never trust an EV like I trust an ICE for going to unfamiliar places.

I have said it multiple times, but it is just wishful thinking that humanity will behave differently/responsibly w.r.t disposal/recycle of batteries as EVs start replace ICEs on a global scale. I think it will be an even bigger problem than the current issue with green house gas emissions as the current generation appear to be greatly apologetic to the associated issues, as the past, generation were to the issues of ICE.

The circle of collective blindness repeats!

If you slide off the road and get stuck in a ditch in the middle of the night, an EV is a lot more comfortable. Standard advice for keeping warm is to run the engine for ten minutes every hour and keep the window cracked open due to risk of carbon monoxide poisoning. By contrast, you can leave the EV with the heat on all night.
How often are you driving into ditches at night? Typically this is something that only happens somewhere between never and once to most drivers in their lifetime, and the ones that do end up in a ditch are usually drunk.

Aside from anything else, if you're in a ditch your car probably isn't drivable and needs towing somewhere to get fixed anyway. Whether you've used 100km of EV range trying and failing to get out of the ditch of 100km worth of fuel trying to get out of the ditch is irrelevant. If you need to use that much effort to get out of the ditch before realising it's a stupid plan that's not going to work and the correct solution is to call a tow truck, then you definitely shouldn't be driving that vehicle anyway.

Surely you call a recovery truck to come pull you out and do an emergency charge on your battery, similar to how they’d provide you with emergency gas if your tank ran dry? Or tow you if they don’t have a charger?
A standard EV battery can power seat heaters for about a month. If you're "stuck in a ditch" you're better off with an electric car.
You have used multiple gallons of gas getting "unstuck" from somewhere? That is a ridiculous scenario.
The point is that I have the lee way to even attempt it...
If you run out of gas you’re also stuck. Only upside is that the recovery service can bring you a few gallons of fuel instead of a tow.
I somewhat suspect that's a temporary state of affairs. Nothing prevents a couple tons of batteries being put on a truck with a CCS charger to achieve the same thing.

It won't be efficient but neither is driving a few liters of fuel to someone from a gas station.

Such things already exist in Europe. The RAC for instance:

https://www.thecarexpert.co.uk/call-breakdown-provider-ev-ru...

Tow trucks are sometimes needed for gasoline cars too.