| Forum Home | ||||
| PC World Chat | ||||
| Thread ID: 150575 | 2022-04-05 00:53:00 | Buy EV's they say, save the planet | wainuitech (129) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 1485375 | 2022-04-07 07:16:00 | it varies by manufacturer, Nissan uses pouch cells that look like big sachets combined in 4s and built into a flat rectangular metal case. I think some other manufacturers also use pouch cells. There's a bit of a race going on to find the best battery technology at the moment. Toyota claim their solid state batteries will be in production soon, tesla keeps improving their design, the Chinese are not wasting time with multiple manufacturers working on battery tech. I'm optimistic that someone will crack the major issues in the next few years, many of the proposed options already exist as working prototypes and it's only manufacturing in bulk that needs solving. |
dugimodo (138) | ||
| 1485376 | 2022-04-07 08:51:00 | Unless they can figure out a way to extract lithium etc from thin air, the raw materials issue will never be solved... | Agent_24 (57) | ||
| 1485377 | 2022-04-07 19:45:00 | Sodium will replace Lithium :) Ken |
kenj (9738) | ||
| 1485378 | 2022-04-07 20:02:00 | Supplying the electricity to charge them is going to be a major problem. Currently around 10% of electricity is produced from renewable sources worldwide and even that is heavily subsidized. As we shift to a greater use of so-called renewable energy the price of it is going to increase exponentially. Also some form of RUC will be introduced to substitute for the current not insignificant tax charged on fossil fuel. | CliveM (6007) | ||
| 1485379 | 2022-04-08 04:02:00 | Are EV's really up to the job, latest indication of problems ahead: Laura drove her Nissan Leaf from Waikanae to Wellington earlier this week and said the gradient of the road as well as the wind buffeting the vehicle used more power than when she drove the old route around the coast. "When I drive to Wellington I get there with more than 60 percent battery at the end, but [over Transmission Gully] I arrived to Wellington with 52-53 [percent], which is quite a big difference." www.rnz.co.nz |
zqwerty (97) | ||
| 1485380 | 2022-04-08 08:19:00 | Here's what happened the last time an EV was mass produced: www.bbc.com |
zqwerty (97) | ||
| 1485381 | 2022-04-08 09:46:00 | Are EV's really up to the job, latest indication of problems ahead: Laura drove her Nissan Leaf from Waikanae to Wellington earlier this week and said the gradient of the road as well as the wind buffeting the vehicle used more power than when she drove the old route around the coast. "When I drive to Wellington I get there with more than 60 percent battery at the end, but [over Transmission Gully] I arrived to Wellington with 52-53 [percent], which is quite a big difference." www.rnz.co.nz Seems like a problem that will be alleviated somewhat with more charging stations and future battery tech improvements, although range is certainly still a problem in general for EVs, and rapid charging is likely to wear the batteries out faster. The EV trucks, utes etc seem bonkers. You run up against a wall at a certain point, where the range added by bigger batteries is negated by the extra battery weight, an issue only compounded by heavy cargo. Here's what happened the last time an EV was mass produced: www.bbc.com And? I'd say there's zero relevance there in today's market. EVs are very profitable and now everyone is jumping on the EV bandwagon. I highly doubt that story is going to repeat itself. |
Agent_24 (57) | ||
| 1485382 | 2022-04-08 20:59:00 | Have just towed our 6m caravan to Nelson from Hanmer yesterday, used less than half a tank of diesel in the 3.2TD Ranger with manual gearbox. No EV yet would have been able to tow it as far as my gate. | gary67 (56) | ||
| 1485383 | 2022-04-08 22:12:00 | Some EV's tow ok, it basically halves the range with a large trailer. Worse if it's very heavy or not well shaped. For now a Diesel is a much more sensible choice for towing, but it's not as bad as all that. www.youtube.com Price is still the main issue. |
dugimodo (138) | ||
| 1485384 | 2022-04-09 00:26:00 | The EV trucks, utes etc seem bonkers. You run up against a wall at a certain point, where the range added by bigger batteries is negated by the extra battery weight, an issue only compounded by heavy cargo. Some EV's tow ok, it basically halves the range with a large trailer. Worse if it's very heavy or not well shaped. not only is weight a big issue, but also things like aerodynamics. most ev's rely very heavily on being a good efficient body design. they do everything to be efficient as possible. when it comes to heavier vehicles all that goes out the window. for eg i towed a load to work, hit a head wind and fuel usage went up to over 30l/100km (max reading of the gauge). i was full noise and could only do 80km/h. flat ground and went back to normal once i turned the corner and got out of the wind. if that was an electric ute, you might be in trouble quick. power density is a major problem, which makes the EV fan boys claims of all trucks, planes, trains will be EV absolutely laughable. not to mention the charging issues with such large power requirements. plus the effect of RUC, which is based on weight, is another issue. ev's are heavy cars. for light loads, short range, small ev's are perfectly fine. which also makes charging them easy. which can be really good in city centres. that has a big advantage of reducing pollution in those areas. |
tweak'e (69) | ||
| 1 2 3 4 5 | |||||