Some rough math shows that a 15KW generator (20 HP) would be needed. Make that 20KW, because you can't run electrical stuff at 100% all the time. A 20KW generator (think the generac cabinet they sell at Home Depot) is pretty big, but that's because the engine has to operate at 3600 RPM (to make 60HZ power). You could use a much smaller motor and run it at 8000 RPM in this application because it's getting converted to DC anyway.
The battery on such a hybrid could be half the size of a Tesla battery, as most folks only need ~120 miles of range on a daily basis (sure some will need more, and some will need far less) but if you need more, there's the generator. The space freed up by the smaller battery could hold the engine and generator head. Man. I should be writing this down.
I think you need more like 50+ hp to equal drag at highway speeds.
But the "range extender" engine generator to boost electric vehicles range is a good idea.
The first I saw was an Australian who put a Honda generator into a tiny aero trailer & plugs his electric car into for trips cross country away from city drives.
That way if he doesn't need it, it's home in the shed.
Could be. I googled (duckduckgo'd is a bit cumbersome, but that's what I used) it, and 20 was the answer. Obviously, there are a few variables that affect what that number is.
I will note that ICE engines use fuel when idling and many people ran out of gas. Electric cars do not. How long will an electric car be able to run resistive heaters on a 75kwh to 100kwh battery? A long time. Also, all new teslas have heat pump AC units, and do not rely on resistive heaters.
Still doesn't change the fact that "out of fuel" to "out of juice", the ICE is easier to get going again. Gallon of fuel, jump start...go. EV? Yeah - go grab a gallon of electricity.
I'd like an experiment - half-tank ICE, and half-charge EV. Set 'em both in the driveway "idling", keep the interior at a safe temperature...and see which one dies out first. Honest curiosity.
For the tesla with resistive heaters, it’s just math. 2170 watts are required to maintain cabin temperature.
100kwr/2170 = 46 hours of run time. The computer are also sucking up power during this time but they use very little power.
Do you think you could idle the average passenger car for two days? As I said, lots of people ran out of gas. Maybe they were at an eighth of a tank when they started out. The EV driver would have left the house all filled up.
You could also keep the temperature set lower, because if you live in that sort of climate, you probably have a nice heavy coat with you, and it would last even longer.
If you have a 75 kwh battery, it’s 34 hours.
I get your point about refueling. That’s going to be true always. If you want an electric car, it’s a risk you’ll have to take. I absolutely reject the idea of forcing people to buy electric cars by eliminating other options, which is what our government seems to be trying to do by implementing untenable fuel economy standards.
If you have a newer tesla, your heat pump uses 735 watts for a total run time of 136 hours or five and a half days. Do that with a gas car.
Since I live where it's not that unusual to be stranded in a blizzard for a whole day, I know not to run my ICE powered vehicles in a snow drift until I run out of gasoline and AIR. The Cause of death when they dig the corpses out of the snow bound cars are often CO poisoning and asphyxiation.
As to "my superior tech runs for days..." I would love a test to prove it, with instruments to measure heat and air quality.
You need to take into account environmental control settings and human action variations. Like running the engine until warm, then coasting until freezing.
And how long does the battery last at freezing temperatures, how much power is burned keeping the battery warm, is going to give a different answer than at STP.
This is particularly interesting to me, because MY car controls the engine on periods automatically, based on control settings and environment. By repeatedly reactivating defrost mode, I can keep the engine on more, but that's a hack based on RTFM, not normal operation.
Also, my now repurchased VW TDI could run at idle for overnight just fine. You'd be uncomfortable and cold, as at idle it doesn't make enough heat to melt the snow off the windshield in half an hour @ -15f. from cold, it would if driven to warm up to operating temps.
The direct injection engine in the Toyota is the most efficient available gasoline engine for wasted energy, @ 39% peak. So a Cardiac Eldorado is going to burn less fuel, ironically, to keep the cabin warm.
There's a PHD paper just itching to get grants for here!
Heat pumps vs. Hot wires. No contest, except cost and complexity.
I just installed a heat pump water heater. Hoping for a 4 year payback in energy costs, and under an anti-energy government, it may be sooner as electric costs rise. More.
Re: stuck in snow energy use.
Good to hear it's better now. The Chevy Electric of more than a decade ago was only good for 15-35 miles in subzero weather and would run out of power, parked with heater on very quickly.
My only testing with the Toyota Hybrid has been to wait an hour in a parking lot for a friend's medical visit. Just radio & heater running with "power on". Automatically runs engine intermittently. Need to do a multi hour test this winter when it's nasty.
I'm not dissing Tesla, just reporting a problem. Hope they can fix it.
I heat my home with a ( outside air ) heat pump. When it gets to about minus 13f there's very little heat to pump, and it struggles to keep up with heat loss. My house is pretty well insulated.
Not the super insulated house I'd build, if I was having a new one built, but pretty good by turn of the century normal house standards.
One of the advantages of the inefficient ICE cars is all that waste heat in the cooling system makes heating the car easy, with almost zero cost to range.
I'm wishing I could find a Toyota diesel Hilux like the one destroyed by Top Gear! I miss my TDI.
Yep. No worky when there’s no heat to be had. If you live in that environment, electric cars are not a good choice for you. Tesla just released another update for this. I have a 2019 with resistive heaters, so I couldn’t tell you whether it had any effect.
I'm still waiting for my permit for water taxis in Manhattan. The streets should have been flooded years ago, what's the delay?
Al The Prophet Gore promised me my children would never learn to build a snowman. ( almost correct! They build 75' long snow dragons ) I think of that every time I scrape feet of snow off my windshield, porch, and steps.
In a not far enough distant future, the World leader is a childlike idiot, and government agencies compete for budgets by making spectacular stuff to amuse him. ( dang, that one's too real! )
The levels of CO2 & pollution have risen so much that mankind has evolved to survive them...
The Time Travel project sends poor Svetz back to capture fantastic extinct beasts for the Chairman's zoo. ( where they live in air conditioned bubbles, not able to breath outside )
Unfortunately, the time machine can't travel back to before it was conceived, and before Temporal Science was invented, it was Fantasy, so travel back is actually to a fantasy universe.
Leaving the Time Agency the problem of changing all the pictures of a Horse to add the horn they don't dare remove from the one they brought back to entertain the Chairman.
Some fiction is too close to reality today for comfort.
So? You don't own a truck, so how can this hurt you?
I'll skip the obvious to all except Regressives, that every service you buy that involves a truck will increase in price to pay for the tools. That's your food, the guy who plows your driveway, the plumber, the glass shop that fixes your broken windows, ( which will increase in number as Regressive DAs refuse to prosecute crimes ) and the ambulance run if your kid is injured or you have a stroke from watching Kamala.
No, I'm talking about regulations not yet imposed upon you, but WILL be, quietly, as soon as some bureaucrats think they can.
Mpg/gpm based on passenger seats.
Pretty much every street motorcycle I've owned got about 35 MPG. Except my Buell.
True, my GT380 was a 2 stroke, not as efficient as a new Yamaha 4 stroke 400, but it, a couple of 750s, and my Gs1100 all got roughly the same mileage, because none were streamlined and the aerodynamic drag at highway speeds are all in the same lousy range.
So is the drag on my Cyclone, even with the Thunderbolt fairing. But the Cyclone has a free breathing performance engine that is barely stressed in top gear @ highway speeds. If I rumble about @ 60ish mph, I get over 55mpg, measured, not EPA. ( this reinforced the lessons learned in the 1980's that breathing improvements and tall gearing gave my full sized vans better fuel economy, a vital thing in the Third Worst Presidency of My Life Time when OPEC punished Jimmy )
So why will the EPA & DOT writing their own rules illegally hurt you motorcycle folk?
Because you have a 2 seat vehicle. And you're having fun.
That second part really annoys a certain kind of mentally ill person. Really makes them unhappy. The Karens. They run things now.
So they WILL PUNISH YOU. And if the fuel economy regulations written by some staffer is demanding 40 mpg, someone will point out you have half the passenger seats than a car, so you must be allowed only 80mpg, or It's Not Fair.
And that's the End of high performance bikes as you know them.
It's interesting that the tsunami is so different. Most earthquake caused tsunamis have a single big lump of water or a couple together, then reflected waves from the seafloor and land masses. Typically a big chunk of rock drops a few feet or jerks up a few, and the immense volume & mass of water "heaves" giving the distinctive short in altitude, but long in wavelength wave.
This volcano eruption seems to have moved water more sharply, repeatedly, as huge volumes of steam came out, underwater. If you've ever run a steam hose into a bucket, or pool, you get the most amazing sounds, as the bubbles collapse and condense in the cool water. Often at a range of flow rates, etc. no bubbles are reaching the surface.
Well, the surface certainty was reached, and in the higher resolution shots you can see shock waves in the air going many miles. I wonder what the Pacific hydrophone chains recorded? I'm guessing a series of big bangs as mountain sized bubbles formed and collapsed, before and after the big belch.
Best wishes to all the coastal areas affected, lots of property damage, but it could have been far worse.
SSTO, single stage to orbit, is a "grail" because it's really really hard. You have to build a craft with an empty weight including crew & cargo, a tiny fraction of the fuel mass.