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Suprisingly low wind generation share in comparison with solar in California which cousing huge disbalance during day and even more summer/winter. My conclusion would be more wind power which is significantly cheeper and requires no wast storage capacity while smoothing power generation patern during day and especially during the year.
How it came producing "green" hydrogen is more efficient than "green" electricity. And whre hydrogen can be better than electricity as power source? Might be plains or ships. But that is not ifrustructure issue. No plains and not ships are available.
That is key issue for EV proliferation. That's why night and slow charging is preferable and way avoiding huge spendings including carbon footprint. Suprise suprise no comments.
Very, very important step. Much more significant than fast charging stuff. Practical wireless chwrging would enable mass charging capability at public parking locations.
That it very interesting invention indeed. But area of application could be very different. I expect metal cooled nuclear reactor designers could be interested. As for energy storage - still no CO2 or other high temperature turbines in operation. For me hard to imagine possible transformation cycles. In case using existing steam turbines storage losses will be no less 40% at the chillers and some thermal isolation losses. Therefore nothing close to hydro pump storage efficiency and simplicity.
Hard to imagine performance of such freight troleybus. What will be load of the line in case multiple electrical trucks traveling and at the same time charging their batteries? What would be cost of infrustructure?
Does ban on ICE suppose ban on hybrids including serial? May be the study assumptions are based on wrong fact of total ban? As far as I know LDVs should be electrified by 2030 but still with ICE.
I totaly agree with Engineer-Poet. Would be interesting to know what this is about. On other hand diagram is stupud since there is rationality behind regulating power consumtio by not producing fuel during day hours. Fuel production equipment standby cost could outweight power cost many many times both in money and enviromental terms.
Peter XX Diesel fuel cost is higher vs electricity at least 3 fold as well and smog within towns is anoying.
P.S. Misleading video. Good acceleration is due to powerfull enough battery but not fuel cells.
I would prefer testing CNG or DME powetrains. May be they should by hybrid. But hydrogen is total nonsense. Energy density is OK but overal process efficiency (coal or natural gas to wheels) is awfull. What a waste of energy and resources!
Fast charging cost is huge. Thats why Tesla installing them for intercity travel. The power rate for fast charging will be 3 times more of average. Wireless charging is designed for slow and night time charging. EV initial paradigm was using offpeak power. Fast charging will increase EV costs dramaticaly and in general is against EV proliferation. Wireless cgarging is briliant project and I like things are developing.
I am looking forward first manufacturer installing wireless charging. Again Nissan?
Looks like Big Oil companies like Shell, Total and others looking for positive publicity and kind of creating alternative to growing EV. Toyota management irrationaly obsessed with hydrogen. Rational way would be vice versa - transform existing hydrogen into methane and use existing infrustructure. Methane for transportation more logic solution as well.
It is significant attempt to restart nuclear power. I still believe most promising design would be breeder type generation IV SMR reactor proposed by GEN4. That would be solution for spent fuel (including existing reserves). My question is what NRC is going look into for 40 months (probably much longer)?. They are going sort those 12 000 pages in right order? It would be cheaper build deep underground facility (use some abandoned mine) and start testing SMRs one by one and see how they behave in real world conditions. In that case worst situations could be tested and recommendations developed. In other case it just bureaucratic imitation of some activity.
May be some day car solar roof will cost nothing. Then it will be reasonable to have it. I would prefer to calculate truck trailer solar roof. In case first electric truck on the road it could make some impact. But in any case those things shall become much more cheaper.
Efficiency level is simply acceptable for public charging and in fact will be higher against fast wired charging taking into account supporting infrustructure cost.
Infrustructure cost money. Therefore it's worth consider wireless charging from very begining. The wireless part could be very small fraction of overal cost but would help proliferate EV dramaticaly.
Autonomous EV taxi service without wireless charging will be not possible.
Even if plasma fusion works - will it be economic due to anticipated tremendous investment costs? It is worth studding such kind of things but it remains pure science as it was almost 30 years ago after my graduation nuclear plasma engineering. At that time some professors where confident that solution will be within automation. Prediction techniques and formulas could be implemented in analoge ir digital way. But some were more pessimistic believing only in artificial gravity confinement.
Fusion reactor is the one everybody dreams about. But development vague since no leadership and commitmet Opengamer style. Stelator project was very promising but needs manyfold fund injection, speed and relentles effort. More realistic things are happening within fission under Russian (!) leadership. They have been developing very long time fast neutron reactors (55 yers). More or less it was soviet burocratic style development with unnecessary military secrecy. Russian Sodium fast neutron reactors are in operation but they are not economicaly viable. Recently Rosatom approved Brest-OD-300 reactor construction with UN fuel and lead cooling cycle. Why it is so interesting, new and important? First of all Uraniu Nitride fuel provides possibility spend fuel be reprocessed by enrichment indefinite number of times therefore practicaly no nuclear waist. In that case Uranium utilization increases thousand fold and even existing nuclear waist could be recycled. Secondly lead cooling cycle eliminates possibility of ovrheated reformed steam blast. All bigg nuclear accidents occured due to that phisical reason. Lead cooled reactor accident risk limited to the loss of reactor itself without effecting enviroment. Main question remains - is this economical and can compete with coal? Very difficult to answer. In case make licencing smarter and better the construction cost of nuclear could be redueced in time and financialy. The thing is that to fight established burocrats very risky bussines and no businessman wants to invest taking into account public opinion. The hope was modular reactor licencing procedure applicable for the product type. In that case reactors could be mass produced without involving individual case licencing. But seems to me idea has not received necessary support.
Aggressive goal. I like it. In general speed of charging depends on battery voltage. IMO battery voltage will grow. Existing 400 V dangerous quite enough. Probably voltage will not become more deadly since it is deadly know. Do not forget CRT TV sets are using 20 000 V and have been used on mass scale for several decades. 10 kV electric motors are quite common peace of equipment.
Henrik, City taxi service with self driving cars would require charging inside city and taxi parking as well. I do not imagine not involving public authorities. Currently all Tesla charging infrustructure is intercity.