If you think you can build a BEV / solar power airliner that can carry 200 people, then build one. Until then, it doesn't exist.
Yeah. That's how I feel about the proposal for Hydrogen Fuel infrastructure that is generated entirely by renewable power sources. The great idea that has been 15-to-20 years away for the past 40 years... And is still 15-20 years away.
Based on what current scientific prediction or past precedent do you foresee a 1000% battery capacity increase in the next 50 years?
I always go by what I've heard said by JB Straubel. He has noted that there is roughly a doubling of energy capacity in battery technology every ten years or so. I would expect that improvements to battery technology will probably improve by 1,000% within the next 50 years
(it might not be Lithium-ion, of course). Though I admit I hadn't thought quite that far out just yet.
Let's see... If a certain volume/weight of battery cells holds 100 kWh today... And that doubles every ten years...
100 ... Today
200 ... 10 years
400 ... 20 years
800 ... 30 years
1,600 ... 40 years
3,200 ... 50 years
So, you'd be able to hold 3,200 kWh in the same space after 50 years. That is well over the 1,000% improvement mark. Yes?
My opinion is that for ground vehicles it won't take that much at all for BEV to take over from ICE. Even before 85 kWh to 100 kWh can be held in a volume/weight that is only 1/4 the size of the Generation II battery packs, it will be a done deal. I figure we'll get there by 2030 or so.
I don't know the relative energy efficiency ratings for aircraft. I expect it is quite a bit worse than the best ICE ground vehicles, and probably a little better than the theoretical Warp Drive from Star Trek. I was rather surprised when it was revealed on Star Trek: The Next Generation their Warp Drives used something like 98% of the energy generated by their Dilithium Matrix for containment alone. So, everything else in the ship was run on only 2% of the energy they had available. That was pretty friggin' inefficient, a rather brute force manner of using technology. The tricky part with aircraft is that their range is typically computed with an assumption of the overall vehicle weight going down during transit, as fuel is burned. With batteries, the whole weight of the vehicle is basically the same for the whole trip, complicating the matter somewhat.
Over the last 4 years, Tesla was only able to show a 5% progress. Extrapolate that rate, and even compounded it shows a 80% improvement over 50 years. Now, let's say Tesla was just lazy up to this point, and they can actually make 5% progress every 2 years instead of 4. That would still only achieve 250% in 50 years.
Once again, I stick to what JB Straubel says. I believe that Tesla Motors keeps their major improvements in battery technology locked behind closed doors, in testing, with the intent to release them with each new generation of vehicles. JB noted a 40% improvement in energy density between the announcement of the Tesla Roadster in 2007, and the release of the Model S in 2012. He expects a similar improvement for Model ☰ in 2017. Go to the 8 minute mark in this video:
I have theorized elsewhere that Tesla Motors is being rather cagey with their commercial releases of battery capacity upgrades for Model S and Model X. I believe that the Tesla Generation II cars will each max out at either 120 kWh or 165 kWh prior to the release of Model S 2.0 around 2020 or so. Most Tesla Enthusiasts insist that I am an over-the-top optimistic fanboy and stuff, and don't expect to see more than a 100 kWh capacity in Model S or Model X. Thus, they scoff at my expectation of a 120 kWh to 135 kWh capacity or so for a Performance variant of Model ☰. We'll see what happens before too long.
You're talking about a 1000% improvement. There's nothing that predict that to be on the table. Thinking it will happen because people sometimes achieve cool stuff... well, you can think that, but I see that as hope, rather than reason.
I believe that Elon Musk would not mind getting into some type of aircraft distribution at some point. It might not be branded as either Tesla or SpaceX, but possibly another new company that uses their expertise. With that in mind, I would guess they would probably want to start at perhaps 500% improvement or so in battery technology instead. Might not be able to manage a 200 passenger vehicle, but could probably put together a really nice 8-to-24 passenger plane with superb range.