Comment Re:Why not both? (Score 1) 239
Or do combined-heat-and-power and use absorption chillers.
Or do combined-heat-and-power and use absorption chillers.
What's the issue with lead-acid batteries? They're one of the most recycled things around.
Medical care takes an increasing portion of the developed world's economies
And in other nations, it's a faction of what you spend in the USA.
Plus it kills a lot of birds.
Would you prefer footnotes?
I don't know Canadian politics, so not sure what you mean by your comment.
In the recent provincial election in Alberta (generally regarded as the core of the Conservatives (Stephen Harper's seat is in Alberta). It gets stereotyped as the Canadian version of Texas), the Progressive Conservative Party (who have held government in that province since 1971 (and before them, the also right-wing Social Credit Party held government since 1935) and before the election held 70 out of the 87 seats in the provincial legislature) were swept out by the social-democratic New Democratic Party. It was a really stunning reversal for the province that has been electing right-wing governments for longer than most have been alive to shift straight to our leftish party and, if the recent polling results are to be believed, it has given the federal NDP a serious boost and turned the upcoming federal election (which is expected to happen in October) into a three-way race.
Ask that of the company. The contract required keeping the phone on them 24x7 to answer client calls.
Surrette 24V, 856Ah bank for $2960. That's 20,544 watt-hours, or 10,272 at 50% DoD. That $0.276/effective watt-hour
Compared to 10,000 watt-hours out of Tesla's product, or 9,000 at 90% DoD, for $3500. That's $0.389/effective watt-hour.
The Li-ion is significantly more expensive, but as I said in my first reply, it won't take much more to drive the price of the Li-ion under that of the lead-acid. The price of Li-ion has literally halved over about the last 5 years and Tesla's gigafactory will only help that along.
Citation for what exactly? That lead-acid shouldn't generally be discharged below 50%? That a 20KW-hr nameplate lead-acid bank costs about $3500?
And how an I suggesting they fucked up by saying that a product announced last week is competitive with lead-acid? I am talking about this announcement making Li-ion competitive with lead-acid.
The "far more capacity" you cite is roughly double, which is pretty close to the difference in deep discharge capability between lead-acid and Li-ion (50% and 90% respectively).
In doing that, he will be able to bring li-ion chem prices down below lead-acid batteries.
That won't take much. If you look at usable capacity (remember, deep discharging lead-acid is a no no), they're pretty much already there.
Sure, but the cells Tesla uses are the same ones Panasonic sells to anyone else. Panasonic may have some special sauce electrolyte that makes them better than Energizer, but that still doesn't make Tesla's anything special compared to anything else that uses Panasonic sells.
Actually, they are about the same type. Tesla's packs use a modified (PTC fuse and CID removed) version of the bog standard 18650 Li-ion cell, which is commonly used in laptop batteries.
It's the battery management system and the cooling system that would make the difference in longevity.
You will probably not be struck by lightning, but I can't guarantee that it won't happen.
Actually, when talking about airliners, getting struck by lighting is a fairly common occurrence. A typical airliner experiences a lightning strike about once a year.
Of course the big question is how efficient is the process? Is it more efficient than just using the electricity to charge up batteries in an electric car for example?
TFA says 70%, then you get about 30% out of the engine, so the answer is no, but it trades that off against faster refuelling, longer range, and ability to use existing infrastructure rather than starting from scratch.
He has not acquired a fortune; the fortune has acquired him. -- Bion