Recent content by buyer123456

It depends on the design, maybe the old generation Roadster was too aggressive trying to maximize peak torque while shifting, hence the transmission at the time couldn't take the torque. The shifting is not to deal with more torque from standstill or at low speed, it is to allow the electric...

Do note that electric field propagation does travel close to the speed of light, so the energy exported from local solar's to the grid do aggregate(with peaker plants and remote renewable sources) and contribute to peak load. So export limiting is self defense from utilities.

BEVs will get their sales and volume, and HFCEVs will get theirs, and this plays out in real time as both encounter their own constraints in their respective stages of deployments, and both are very very far from displacing a meaningful amount of FF consumption. So my guess is that going...

The above arguments have been repeated a few times in the last 2 weeks, but these deep-pocket automakers do have to collect their emission credits or else pay up(dearly). As much as this second round of EVs has taken a long time(100+ years from the first round!) to roll out, hydrogen actually...

In the context of discussing "1 million EVs waiting for excess solar", even when superchargers get renewables, that chunk of electricity still needs to be routed from remote solar through the grid, adding that much stress on the grid. In contrast, if a supercharger can be off-grid with solar...

Well nwdiver asserted that there is no enough curtailments hence there is no need to worry about storage, plus another poster asserted that 1m EVs sitting idle can be used to soak up any excess PV outputs. Both of which are not my assertions.I did participate to point out the holes in their...

This is almost 2 year old. https://electrek.co/2017/06/09/tesla-superchargers-solar-battery-grid-elon-musk/ "CEO Elon Musk said that they plan to deploy more battery and solar systems with the upcoming ‘Version 3’ of the Supercharger, but now he went a step further and claimed that “almost all...

Well how come it is just me off-topic while the other posters also build their cases for/against storage? The discussion of hydrogen as storage is mainly on remote solar farms, not local distributed generators like rooftop solar. From the above quote, It is you what build a case for local...

That is exactly right, but nwdiver argues that curtailment is not to avoid stress on the grid, hence the last few pages of discussion.

Assuming that extra 30MW from those remote farms do not trip a circuit breaker in the grid and cause brownouts/blackouts.

Wrong. There are peak PV outputs(that can stress the grid), there are peak electricity rate hours. Wrong, Curtailed solar power is not excess PV output, because there are curtailed. But the discussion is how to possibly avoid those curtailments, by sucking up the un-curtailed excess solar to...

One can do the calculation to figure out how many square meters locally are needed to charge those 1M cars. But then, that beats the purpose of reducing curtailments at those big solar farms that are recorded by CA ISO, plus the local (non-tallied) curtailments implemented as export limits by...

That is a noble goal, but given how PG&E operates, that is unlikely cost savings will materialize.

Tesla's claim at one point was to take all superchargers off grid and be powered by solar and battery storage, but that has not proceeded that far, meaning most superchargers are still grid tied. Obviously if your EV happens to be close by local solar, the EVs do work as local storage. But...

Again, peak hours are those hours with peak usage, and/or with peak PV outputs. Having excess PV outputs means usage(demand) is not as high, but the excess PV outputs still need to go somewhere, unless the excess is stored locally. Without local storage, the excess PV outputs at peak hours...