2023 Tesla Investor Day: Elon Musk Explains Master Plan 3 (March. 1st)

 Elon Musk:

All right, master plan part three.

So as Zach was mentioning, the thing that I think is we wanted to convey probably more importantly than anything else that we're talking about here, is that there is a clear path to a sustainable energy Earth.

It doesn't require destroying natural habitats. It doesn't require us to be austere and stop using electricity and sort of be in the cold or anything.

The story, and I think that this holds together quite well, will be actually publishing a detailed white paper with all of our assumptions and calculations, is that there is a clear path to a fully sustainable Earth with abundance.

In fact, you could support a civilization much bigger than Earth, much more than the eight billion humans could actually be supported sustainably on Earth.

And I'm just often shocked and surprised by how few people realize this. Most of the smart people I know actually don't see this clear path. They think that there's not a path to a sustainable energy future, or at least there's not one that is sustainable at our current population, or that would have to resort to extreme measures.

None of this is true. 

So we're going to walk through the calculations for how to create a sustainable energy civilization.

Drew Baglino:

And to set the stage, today our energy economy, let's be honest, it's dirty and it's wasteful. Over 80% of global energy, primary energy, comes from fossil fuels, and only one-third of that global energy actually ends up delivering useful work or heat.This is the problem statement, but we're here to talk about the solution.

Elon Musk:

Yeah, it's like, for some of this I'm going to elaborate because there's a very wide range of technical expertise out there, from people who are like, you know, whatever level nine wizards in the subject to people who do not do engineering at all.

So if you have a gasoline car, you're converting less than a third, often maybe only 25% of the energy in the gasoline is converted into motion. The rest is turned into waste heat. That doesn't do any good at all.

And there's a lot of energy required even to get the oil out of the ground, to refine the oil, and to transport the gasoline to the gas station.

So when you look at all that for a typical gasoline car, is actually going to be using less than 20% fully considered of the energy from the oil actually goes into motion.

So when we see people doing calculations for what does it take to create a sustainable energy Earth, they assume that the same energy amount is required for an electrified civilization versus a combustion civilization. 

This is not true, because most of the energy of combustion is waste heat.

Drew Baglino:

And even to get the fuel to combust in the first place, and get it to the end use, there's a lot lost along the way.

I mean, this is the primary energy consumption, 165 petawatt hours a year. Petawatt hour is a trillion kilowatt hours. So it's a large amount of energy.

But the nice thing about electrified economy, there's a better way, we're going to talk about it, is that through end use efficiency and through efficiency along every step of the way, actually the total energy use halves.

So this is one of the most enabling aspects of electrifying everything, is that the sustainable energy economy is that much easier to accomplish. It's actually half the problem statement of the fossil fuel economy.

Elon Musk: 

Yeah, and we're being conservative here. So it could be better than half, but we're trying to have assumptions that are reasonable and not overly optimistic, in fact slightly pessimistic.

So it's really better than half, but just say it's easy to make the argument that we need half as much energy with an electric economy versus a combustion economy.

Drew Baglino:

So how the master plan works, you want to talk about?

Elon Musk:

Yeah, So the thing that is needed at very large scale that is not currently present is a vast amount of battery energy storage. Our rough calculations are that this is about 240 terawatt hours, or 240,000 gigawatt hours.

This is a lot of batteries, but it is actually a very achievable amount, we'll go into details on that.

So that's a combination of electric vehicles and stationary storage. 

So if you've got solar or wind, you've got to store the energy when the wind is not blowing and the Sun is not shining.

And so we're assuming sort of an eight to one ratio of stored energy to power. So 30 terawatts of power.

Our actual capital expenditure calculation for manufacturing investment is more like $6 trillion, but we made it higher to make it $10 trillion.

Drew Baglino:

And this is across mining, refining, battery factories, recycling, vehicle factories, all the things that we're going to talk about needing to invest in to build the sustainable energy economy.

Elon Musk:

Yeah, now, if you look at the total world economy, it's just under $100 trillion. So if this was spread out, say over 10 years, it would be 1% of the global economy. Over 20 years, it would be half a percent of the global economy.

So this is, yeah, not a big number relative to the global economy.

As Drew mentioned, you need about half as much energy with an electric economy versus a combustion economy.

And in terms of wind and solar, how much land would be used? It's less than 0.2% of the land area of Earth.

Generally, people don't realize quite how much energy is reaching us from the Sun. It's roughly a gigawatt per square kilometer. And the Sun doesn't shine all the time, but if you multiply that by, say, four to get the continuous power, four or five, then that gives you the land area of solar.

And you can put wind and solar often in the same place. So a lot of places that currently have wind, you could have solar there and double your energy.

Drew Baglino:

You can also put wind offshore. It doesn't even need to be on land, so wind is even more flexible.

Elon Musk:

You could put solar offshore, too. So Earth is 70% water.

Anyway, the point is that with a remarkably small amount of Earth's land area, we can go fully sustainable.

Drew Baglino:

And do the resources and raw materials exist to support this transition?

We'll go through that in detail, but we do not see any insurmountable resource challenges at all.

In fact, in the end, we should be mining less ore to accomplish this economy than we currently do with the fossil fuel economy. And we're going to talk through that.

Elon Musk:

Yeah, just to emphasize that again, the electrified economy will require less mining than the current economy does.

Less, not more.

Drew Baglino:

So this is the plan, and now we'll get into a little more of the details of the plan.

Basically five areas of work:

First, renewable power, the existing grid.

Second, switch to electric vehicles.

Third, switch homes, businesses, and industry heating to heat pumps.

Fourth, high temp heat delivery and storage for high temp industrial and chemical processes, and a little bit of green hydrogen in there for chemical processes that need hydrogen.

And finally, sustainably fuel planes and boats.

These are the five areas, and we're going to go into detail on all of them.

Elon Musk:

Yeah, I mean, my personal opinion is that as we improve the energy density of batteries, you'll see all transportation go fully electric, with the exception of rockets, that's awkward.

But you can make the fuel with CO2 and water, so you can make methane with CO2 and water.

Drew Baglino:

And you can do that with just electricity.

Elon Musk:

Yes, exactly.

So in fact, on Mars, if we hopefully get there at some point, the atmosphere is CO2, and there's water ice throughout Mars. So you can take the CO2 and H2O and turn that into CH4, which is methane, and oxygen.

So ultimately, even rockets can be electrified.

Drew Baglino:

So first, repowering the existing grid with renewables. And this is going to be a consistent theme. You'll see our estimates for the number of terawatt hours, terawatts, and trillions of investment at the bottom of the page.

This is already actively occurring in front of us. Sixty percent of the generation added to the US grid was solar in 2022. And actually, on a year-on-year basis, solar deployment is growing 50% year-on-year, as of 2022. So this is a serious upswing, and if we continue this trend, this is going to be behind us before we even know it.

Second, switching to electric vehicles. Again, 21% reduction in fossil fuel use by doing this alone. Obviously, Tesla is heavily engaged in this activity, along with many others.

Overall, EV production grew 59% year-on-year in 2022, and EV's hit an amazing 10% market share. It's an awesome milestone. I'm super excited to see that.

Elon Musk: 

This is obviously happening very rapidly, and I think really all cars will go to fully electric and autonomous.

Riding a non-autonomous gasoline car is going to be analogous to riding a horse and using a flip phone. That's basically going to be the situation.

Drew Baglino: 

We actually took a somewhat conservative assumption here in terms of how many batteries are required, because the more the fleet is autonomous, the smaller the fleet needs to be just from a utility basis,

so we're not accounting for all of those benefits, or really much of those benefits at all in this number.

What does this fleet look like?

Just rough view from our perspective, of course we could be wrong, but you can see the breakdown of the fleet by millions of vehicles.

Our goal is to do 20 million electric vehicles a year.

Elon Musk: 

Yeah. Fewer vehicles will be needed, at least passenger vehicles, with autonomy, so there's some debate as to what that number is, but it's some number less than the number of vehicles needed today.

There's roughly two billion cars and trucks in operation in the world today.

Drew Baglino:

Yeah, so what we show here is actually, I think, only 1.4 million or so. So we're representing 1.4 billion, I mean, or so, so a smaller fleet, and the numbers here in this presentation are around 85 million vehicles a year produced, just to give you a sense of how we're thinking about this.

Again, we're going to put all these assumptions up online and, you know, encourage people's thoughts.

Elon Musk:

So, yeah, so we're basically heading rapidly towards an electric or autonomous future.

Drew Baglino:

Exciting. And one of the reasons why EVs are so enabling is this end-use efficiency point.

Tesla Model 3, it's four times more efficient from the well to wheel than a Toyota Corolla, and that's all about the efficiency of getting the electricity into the car in a sustainable energy economy, and then how efficient the car is in transferring that stored energy to motion on the road.

When compared to the engine in the Toyota Corolla and all the, you know, extraction, refining transmission distribution of the gasoline to the Toyota Corolla, and this is a fun reference, Model 3 can drive over a mile on the energy it takes to boil a pot of water for pasta. And then it can drive another mile on the energy it took to cook the pasta.

And that pasta's one pound, and Model 3 is, like, 4,000 pounds, just to give you a sense of just, like it really doesn't use a lot of energy to move a Model 3, that 4,000-pound object, down the road.

Elon Musk:

Also heat is a lot more energy than motion.

Drew Baglino:

Yeah. But people, you know, you just boil a pot of water, you don't even think about it, you know. It's just interesting how efficient these cars are.

Next, switching to heat pumps in homes, businesses, and industry.

You know, right now, heat pumps meet 10% of building heating needs. Install rates growing 10% year on year. It really needs to accelerate.

Heat pumps can serve, you know, heat applications up to 200C in businesses and industry. And from an investment perspective, as you can see on this page, it's actually the lowest hanging fruit in terms of displacing fossil fuels.

You might be saying, well, what exactly is a heat pump?

Heat pumps don't create heat, they move heat. When you think about, like, the natural gas furnished in your house, like, it is generating heat itself. But what the heat pump is doing is actually moving heat from outside of your house into your house.

They're just an air conditioner or a refrigerator in reverse. So we're surrounded by heat pumps. There's, like, you know, they're all over this factory, they're in your house.

And all this really is is about bringing them to displace all the fossil fuel heating in all of the homes, business, in the industry that we can.

And from an energy efficiency perspective, there's a three times reduction in the total energy required to heat these buildings. So a real obvious thing to do.

Elon Musk: 

Yeah, heat pumps.

There are now on cars, yeah, now as default, and at some point we might make a heat pump for our home.

Drew Baglino:

Yeah, maybe, maybe. Maybe.

Next, a little bit more detail on electrifying high temp sort of industrial chemical processes.

So over 50% of industrial heat is greater than 400 C. You know, cement, steel, fertilizers, chemicals, plastics, metals refining all need like 1,500 C. So we need a solution here.

Ultimately, it's purpose-built equipment that enables electrification. You know, carbon, graphite is stable up to 2,800 C. There's other options in the 1,500 C range like silicon carbide, other materials.

So the idea here is you create and store heat when renewable power is available. If this is a sustainable energy economy, you know, renewable energy is intermittent. 

Peak of the day, you've got more generation than you need. You make a bunch of heat then, and then you transfer that heat into the industrial process 24 hours a day using the stored heat you created when the Sun or the wind was blowing.

That's the concept here.

And then on the hydrogen side, we also need green hydrogen to decarbonize metals and chemical refining processes. This is things like ammonia, making steel. You know, there's roughly 120 million tons of hydrogen source from fossil fuel today to do these things.

And hydrogen can also directly replace coal, which is currently used in a ton of steel production through a process called directly reducing iron. You can replace blast furnaces with a hydrogen reducing direct reduce iron furnace.

And this is the way to eliminate fossil fuels from these aspects of the economy and the CO2 associated with them.

Elon Musk:

So I mean, some of this, there's room to disagree, but some amount of hydrogen is needed for industrial processes.

My personal opinion is that hydrogen will not be used meaningfully in transport, and shouldn't be. If you're going to use a chemical fuel, you should use CH4, not H2. 

But nonetheless, it is needed for industrial processes and can be produced just by splitting water essentially.

Drew Baglino:

I mean, something that's been done for decades and decades. This is not, you know, rocket technology.

And lastly, a small part of the pie, but a necessary part of the pie is sustainably fueling planes and boats. Shipping accounts for 3% of global CO2. It's ripe for electrification. Even with lithium iron phosphate, long haul ships can be fully battery powered. So that's a great opportunity to electrify.

Energy density is a little bit harder for planes, but short haul is doable today with some improvements.

We'll get long haul underway. But even in the meantime, we can leverage sustainable aviation fuels produced and stored using excess renewable electricity.

There's a lot of work going on in this space. And it's...

Elon Musk:

Yeah, I mean, to really get long range aircraft and long range shipping to use lithium iron, you need to redesign the ship and not just...

And the plane.

To take advantage of the fact that it is a new source of energy. It's a different architecture. So just like with an electric car, you wouldn't just take a gasoline car and stick a battery in it. That's very suboptimal.

It's much more efficient to have the battery be the structure of the car. And make it mass efficient and optimized for batteries.

If that's done with aircraft, I think you can get long range aircraft with cells at around 450 watt hours per kilogram. Which you can buy it right now, actually. It's expensive. But I think that price will come down.

Drew Baglino: 

So when we stack up all of these efforts, we end up with the numbers we shared at the beginning of the presentation: 30 terawatts, 240 terawatt hours, $10 trillion.

And you may be saying, like, I need some context. Is this feasible?

Spoiler alert. It's entirely feasible.

Just looking at it from a growth rate perspective, how much do we need to grow the deployment of these technologies? 

We're talking about only a 3x growth rate in solar and wind deployment. Solar is already growing at a breakneck pace, as is wind. This gap is going to be closed really quickly.

When we look at the electric vehicles, they have to grow 11x. Well, they grew 60% year on year last year. That gap is going to close pretty quickly as well.

And lastly, storage. Tesla's energy storage business has grown at 65% CAGR since 2016. The global energy storage business is accelerating pace as well. 

All these gaps are going to close, especially as this momentum of the transition to sustainable energy accelerates.

And of course, our goal on this page is 20 million EVs per year and one terawatt hour of stationary storage per year, basically as soon as we can.

And then what about this investment? How do I have a reference point on this investment?

Elon mentioned it's 10% of one year's world GDP. Another way of thinking about it, is how does it compare to what we invested last year in the fossil fuel infrastructure? And it's 60% of that investment.

So actually, building the sustainable energy economy is less than extending the fossil fuel economy, from a year over year investment basis, so very doable.

When we look towards does this fit on the planet, absolutely.

Less than 0.2% of land. As a reference point, the total land area intensively farmed today is 12.5% of all land. So you drive around, you see some farms, but you don't see them everywhere.

This is more than an order of magnitude difference between farming and what we're talking about for sustainable energy land.

Elon Musk:

And it doesn't need to displace farmland or forests or jungle or any kind of ecological preserve. It can be used in very sparsely populated desert regions.

Drew Baglino: 

Land areas, areas that are just not really fit for development or otherwise used. I mean, 0.2% can fit into a lot of places.

Elon Musk:

Yeah. There's essentially no meaningful ecological impact. 

In fact, transition to a sustainable energy economy would result in a substantial reduction in current ecological impact.

Drew Baglino:

That's a great way to put it.

And what about on the mineral extraction side? So this is a cartoon that sort of gives you a sense for all the ore and the extracted minerals that are coming out of the Earth every year. It's about 68 gigatons. So each truck is a gigaton. 

What does this look like when we're in a sustainable energy economy?

Looks like that. The fossil fuel extraction disappears. We replace it with the materials required to fulfill the sustainable energy economy. It actually reduces.

Now, it's not to say that we don't need to continue to explore, you know, bring on mining and refining for the sort of specific materials for the sustainable energy economy.

We do. But the investment in mass flows are all very achievable just looking at what is already happening on the planet. Like, this is nothing out of scale of what has been done and is already being done.

And then we calculate it on a sort of, you know, element by element basis. The resources are there to support the transition.

You know, this is cumulative demand to move in a sustainable energy economy direction until 2050,relative to USGS resources today. You know, we're not breaking the resource bank for any of these materials.

And then when we look at what really happens as we move forward, history teaches the more we look, the more we find.

What people think happens is, oh, there's this many resources, next year there's going to be less because we're going to extract them. What actually happens is, as we extract resources, we find more.

And you can see on the right what has actually occurred with the key materials to the sustainable energy economy. 

Since 2000, as the sustainable energy economy has been growing, and Tesla's been growing and all the industries around us have been growing, the actual resource availability has increased, not decreased.

Elon Musk:

Yeah. There seems to be quite a bit of confusion about lithium.

Lithium is extremely common. It's one of the most common elements on Earth. There's no country that has a monopoly on lithium or even close to it.

There's enough lithium ore in the United States to electrify all of Earth. If the United States was the only place producing lithium, there's enough domestic material to electrify Earth. It's very common.

The limiting factor is the refining of the lithium into battery-grade lithium hydroxide or lithium carbonate. That's the actual limiting factor.

Drew Baglino:

And the same is true for these other materials.

And this is, again, these are not like crazy technologies, it's just the investments need to be made. And the investments, they're not gigantic, they just need to happen.

Elon Musk: 

Right. Nickels may be, of them all, the trickiest one to solve, but as we showed with the graph there, maybe we need like 30% of the world's known nickel reserves.

Drew Baglino:

And the nickel reserves have actually grown since the 2000s.

Elon Musk:

Yes. Exactly.

And you only need nickel for basically aircraft, long-range boats, and very long-range cars or trucks. But the vast majority of the heavy lifting for electrification will be iron-based cells. And iron is actually the most common element on Earth. 

So a little trivia point, if you say, like, what is Earth made of?

By mass, it is made of iron more than anything else, and second, oxygen, and then everything else after that. So basically, we're a muddy rust ball is what Earth is.

So an iron cathode is sort of, you're definitely not going to run out of iron, there's so much iron, it's insane. So that's, yeah.

Drew Baglino:

Yeah, and ultimately, you know, this resource extraction, we go through this effort, we build these batteries, and then we recycle these batteries.

So ultimately, we're doing this to build this sustainable energy economy, but the maintenance amount of ore that we require is really an order of magnitude less, because of recycling.

So in the end, a sustainable energy economy is within our reach, and we should accelerate it.

Elon Musk:

Yeah. I mean, so this is really the main message of today. And I really wanted today to be not just about Tesla investors who own stock, but really anyone who is an investor in Earth.

And what we're trying to convey is a message of hope and optimism, and optimism that is based on actual physics and real calculations, it's not wishful thinking.

Earth can and will move to a sustainable energy economy and will do so in your lifetime. 

Thank you.

Drew Baglino:

Yes. Thank you.

And I just want to welcome up Lars and Franz to the stage.