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Elon Musk has confirmed Tesla Semi’s efficiency at 1.7 kWh per mile, which means it has a roughly 900 kWh battery pack. It’s an important piece of information, but there are still more questions to answer before Tesla Semi can officially be a truly disruptive product.

Yesterday, Tesla unveiled the production version of its Tesla Semi class 8 electric truck and delivered the first units.

At the event, Tesla described an electric truck that could truly disrupt the trucking industry.

However, we noted that there were a few pieces of information that Tesla omitted from the event that could really be major difference makers.

The two main ones are the weight of the actual truck and its price:

The trucking industry is all about the economics of moving products by the pound. The main thing that will drive that is the cost of operation per mile, which is mainly affected by the vehicle’s efficiency.

Tesla has already reported an efficiency under 2 kWh per mile which is impressive, but not exactly clear when you are trying to determine your cost per mile for electricity.

On Twitter last night, Tesla CEO Elon Musk confirmed that it is 1.7 kWh per mile. That’s more precise, and truck operators can input their electricity rates to get an idea of fuel costs and savings compared to diesel.

It also gives us an idea of the Tesla Semi’s battery pack. It’s not perfect since we don’t have the exact range of the truck. At 500 miles, which Tesla claims, that’s 850 kWh, but the pack generally has a buffer, and based on the 500-mile trip it completed, it looks like the electric truck might have some more in it.

Tesla Semi assembly

Now what we need to know is how much cargo can a Tesla Semi carry. A class 8 truck fully loaded needs to weigh 80,000 pounds or less as per regulations, but electric trucks have been allowed an extra 2,000 pounds.

In order to know that, we need to know the weight of the truck itself. You have to deduct the weight of the trailer, which is about 10,000 pounds for a 53-foot trailer, and the weight of the truck from the 82,000-pound limit.

Tesla says that it will roughly have the same capacity as a diesel truck, but diesel tractors have a wide range of weight from roughly 12,000 to 25,000 pounds. The Tesla Semi’s power would certainly need to be compared more to the higher end of that range, but at the end of the day, trucking companies want as much cargo capacity as possible.

The automaker hasn’t confirmed the weight of the Tesla Semi, but we can deduce from its load test with concrete blocks that it is around 27,000 pounds, but that’s unconfirmed at this point.

That’s not the best, but it would still give the Tesla Semi the capacity to move about 45,000 pounds of cargo, which still makes the vehicle super useful. Also, it is safe to assume that the number will improve greatly over the years as battery technology improves.

But nonetheless, it would be useful if Tesla could confirm the weight of the Tesla Semi.

Then we need the actual price of the truck. In 2017, Tesla said the trucks would be $150,000, $180,000, and $200,000, depending on the model, but those prices are expected to have changed over the last five years.

Those prices with that capacity would make the Tesla Semi revolutionary since it would pay itself back in about three years just from fuel savings in most markets, but we don’t know that for a fact without the official price.

Electrek’s Take

This is pretty wild. We are super close to being able to confirm that the Tesla Semi can change the entire paradigm of the trucking industry, but Tesla just needs to release a few more pieces of information to make it happen.

The fact that Tesla doesn’t let the press into its events and only superfans is really a bad look for the company at this point. Yes, the press can be annoying, even malicious in some cases, and I don’t say they should let those people in, but there are also plenty of people whose goal is just to keep their readers as best informed as possible, and they would ask important questions at those events that need answering – questions that a lot of fans don’t bother asking. Everything Musk says is good enough for them.

I can’t ask any of those questions because Tesla doesn’t have a PR department, and the only official comments you can get these days are from Musk on Twitter, where he blocks me and surrounds himself with sycophants:

This is just not how a company that aims to be transparent should operate. And obviously, I’m not talking about trade secrets here.

Anyway, the rant is over. I hope Tesla is going to release that information soon, and if it is on the right side, I’ll be the first to celebrate Tesla revolutionizing the trucking industry.

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OpenAI leads private market surge as 7 tech startups reach combined $1.3 trillion valuation

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OpenAI leads private market surge as 7 tech startups reach combined .3 trillion valuation

OpenAI surges to first place as Forge's Private Mag 7 hit $1.2 trillion

Three years ago, Sam Altman lit the fuse for what’s become the most explosive bull run in the history of tech startups with the launch of ChatGPT.

Along with OpenAI’s rapid rise to a $500 billion valuation, other prominent names like SpaceX, Anthropic and Anduril have seen astronomical markups of late. In total, a basket of seven of the highest-valued private tech companies is now worth $1.3 trillion on paper, almost doubling in the past year, according to Forge Global, which provides a marketplace for private investments.

Forge’s value assessments are based on trading activity as well as funding round valuations and tender offers.

That number is continuing to grow. On Friday, CNBC’s David Faber reported that Elon Musk’s xAI is raising $10 billion at a $200 billion valuation, just months after achieving a $150 billion valuation.

Like in the public markets, where the artificial intelligence boom has dramatically lifted the market caps of Nvidia, Broadcom, Oracle and others, AI is also the dominant driver of private market valuations.

OpenAI leads the pack (Forge values it at $324 billion), followed by four-year-old Anthropic at $178 billion, with xAI at $90 billion, according to Forge. Those three companies are all competing directly with one another, as well as with Google and Meta, to create the large language models of the future.

Databricks, which is also one of Forge’s seven leading companies, is valued at $100 billion, due to the data analytics startup’s hefty investments in AI.

The other companies in the group are Musk’s SpaceX, fintech company Stripe and defense tech company Anduril, valued by Forge at $456 billion, $92 billion and $53 billion, respectively. AI is having such a big impact on defense and national security that Forge created a new defense fund to give institutions exposure to the sector.

Sam Altman, CEO of OpenAI (L) and Elon Musk, CEO of Tesla.

Reuters

As as a group, they’ve quadrupled their value since late 2022, when ChatGPT first hit the market.

Forge CEO Kelly Rodriques said that the valuation surge is reflective of actual growth, not just projections.

“We’ve not seen this in the private market ever,” he said. “Companies that are growing at 100%, 200%, 300% on numbers that are already pretty big.”

The hunger for AI exposure is reshaping capital flows into AI, beyond just the few companies at the very top. According to Forge, 19 AI firms have raised $65 billion so far this year, accounting for 77% of all private-market capital.

With that kind of cash available, those companies have little incentive to going public, Rodrigues said.

“If these stocks are liquid and have access to as much capital as they can get, regulation is probably the only thing stopping them from staying private for as long as they want,” he said.

Even without being publicly traded, they’re having a significant impact on the public markets.

Oracle’s stock jumped 36% in a single day this month after the software maker’s earnings report, largely due to a massive contract with OpenAI. Broadcom also forged a new mammoth deal with the ChatGPT creator, while Microsoft continues to benefit from its substantial equity stake in the company.

Microsoft, Amazon, Google and Meta all recently raised capital spending guidance to reflect infrastructure demand.

OpenAI’s Altman sees some reasons for caution.

At a dinner with reporters in San Francisco last month, he described current valuations as “insane” and acknowledged that yes, “we are in a bubble.”

But he’s still betting big.

“You should expect OpenAI to spend trillions of dollars on datacenter construction,” he said. “We will spend maybe more aggressively than any company who’s ever spent on anything… because we just have this very deep belief in what we’re seeing.”

WATCH: Musk, Altman rivalry escalates with new OpenAI hire

Musk, Altman rivalry escalates with new OpenAI hire

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Trump wields ‘golden share’ to halt U.S. Steel plant shutdown, WSJ reports

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Trump wields ‘golden share’ to halt U.S. Steel plant shutdown, WSJ reports

U.S. President Donald Trump speaks in the Oval Office at the White House in Washington, D.C., U.S., Sept. 19, 2025.

Ken Cedeno | Reuters

The Trump administration stepped in to stop U.S. Steel from idling operations at its Granite City, Ill., plant, exercising new powers tied to the company’s recent takeover, the Wall Street Journal reported.

The steelmaker had informed nearly 800 workers that the plant would close in November, noting however that they would still be paid. But after Commerce Secretary Howard Lutnick warned CEO Dave Burritt the administration wouldn’t allow it, U.S. Steel reversed course on Friday, saying the facility would keep rolling slabs into sheet steel, the Journal reported, citing a person familiar with the matter.

The intervention marked Trump’s first use of so-called “golden share” rights, a condition of the $14.1 billion takeover by Japan’s Nippon that cleared in June. The national-security agreement gave the White House veto power over plant closures, offshore production shifts and other strategic decisions.

U.S. Steel didn’t immediately respond to CNBC for comment.

The move highlights Trump’s growing hand in the private sector. Last month, the president said the government would take a 10% stake in Intel, after the chipmaker received billions in subsidies under the 2022 Chips Act.

In June, when the deal was announced, Trump told U.S. Steel workers that Nippon would be a “great partner.” The Trump administration is currently engaged in trade talks with Japan as investors eagerly await signs that the U.S. will strike deals with key partners that avoid steep tariffs.

Trump told the steelworkers that Nippon had agreed to keep U.S. Steel’s blast furnaces operating at full capacity for a minimum of 10 years. The president said the deal would not result in layoffs and promised there would be “no outsourcing whatsoever.” At the time, he said workers would receive a $5,000 bonus.

Read the complete WSJ story here.

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Two days left to comment on EPA’s plan to raise gas prices 76c/gal, kill thousands

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Two days left to comment on EPA's plan to raise gas prices 76c/gal, kill thousands

In July, the US Environmental Protection Agency proposed a plan to delete its scientific finding recognizing that greenhouse gases are harmful to human health, with the goal of making cars less efficient and more costly to fuel. That plan went up for public comment last month, and the public comment period closes in two days, on September 22.

At issue is the EPA’s “Endangerment Finding,” which is the scientific basis of EPA’s regulation of harmful greenhouse gases. The endangerment finding found that greenhouse gases are harmful to human health, recognizing a scientific fact that every serious person has known for a long time – but now it was at least codified into federal procedure.

The Endangerment Finding focused specifically on carbon dioxide (CO2), methane (CH4), sulfur hexaflouride (SF6), hydroflourocarbons (HFCs), nitrous oxide (N2O), and perfluourocarbons (PFCs, now more commonly known as PFAS or “forever chemicals”), all of which we are certain cause climate change and harm humans.

And, in fact, the EPA is required to regulate these pollutants by the Clean Air Act, which tells the EPA that it must work to reduce air pollution.

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Lee Zeldin wants to poison you and raise your fuel costs

Despite that legal requirement, in July, Lee Zeldin, a fraudster placed into the position of chief saboteur of the EPA by a convicted felon who sought a billion-dollar bribe from the oil industry while running for an office he is Constitutionally barred from holding, announced that he would repeal this finding, flying in the face of law, science, public health and American economic interests.

Zeldin’s stated purpose for attempting to delete this finding is because if the finding is gone, it will allow him to roll back other life- and money-saving vehicle efficiency regulations. He wants to revert those regulations because they constrain the fossil fuel industry – which has given him hundreds of thousands of dollars in bribes over his political career.

The specific regulations that Zeldin has his eyes on are automotive regulations put in place by the EPA under President Biden. According to the government’s own numbers, these regulations stand to save 2,000 lives per year and save Americans over $100 billion dollars per year in fuel and health costs.

In announcing his illegal plan to kill Americans and cost all of us more money, Zeldin was joined by Chris Wright, a former oil CEO who is currently the titular head of the Department of Energy. In April, Wright signed off on a DoE report which said the rollbacks sought by Zeldin would raise gas prices by 76 cents per gallon, showing that the people behind this plan know it will increase your costs and yet are shoving it down your throat anyway.

The reason gas prices would rise is because of higher demand. If vehicles are less efficient, not only will they burn more gasoline thus costing you more money and also causing more pollution, more dependency on foreign oil and higher health costs for everyone, but that gasoline will be more expensive because that’s what happens to prices of products when demand rises. And the proceeds from those higher gas prices aren’t going to anything societally beneficial, they’re rather going to line the pockets of oil elites.

Wright’s office also offered a junk report (which is wrong in 100 ways) to justify the EPA’s position, claiming wrongly that climate change isn’t all that bad. But in doing so, the DoE misinterprets data, which the author of one of the cited studies immediately pointed out that the DoE misinterpreted. So, even the stretched justifications offered for the plan are steeped in the ignorance we have come accustomed to since late January.

So far, this clearly harmful plan has only been proposed, and has been open for public comment on regulations.gov since early September, where interested members of the public can leave substantive comments on whether they support the planned regulatory change or not.

Since then, comments have been rolling in, though the docket only shows a total of 676 approved comments as of this writing. This seems exceptionally low, given that the original endangerment finding produced some 380,000 comments.

As it turns out, the EPA has actually received a total of 111,596 comments so far, but it has been approving those comments for public posting at a glacial pace. At the current rate, it will take some 30 years for the agency to sift through and approve all the comments.

We reached out to the EPA to ask what was taking so long, and it said that it was busy categorizing comments based on whether they were part of a mass comment campaign or written by individual commenters, and sorting through them for the presence of profanity (although, one wonders if profanity is really all that unjustified when it’s on a plan that will knowingly kill thousands of people per year). Many comments have been “deferred” after an initial scan, awaiting another look.

Regardless, the number of approved comments is still incredibly small compared to the total, and it’s hard not to wonder if something nefarious is happening here.

Looking through the few comments EPA has accepted, the vast majority seem to be in favor of the reasonable and both scientifically and legally correct position of maintaining the Endangerment Finding. If these are the comments that EPA deigned to allow through, even in the midst of its efforts to kill Americans, then we can imagine even more vehement opposition to its plan in the 110,920+ comments it has hidden (including this author’s… which was made as soon as the docket went up for comment, and much like this article, is forceful and truthful but not profane).

In addition to the public comment site, EPA also held a virtual public hearing, where interested members of the public could call in to make their voices heard. The vast majority of callers supported the scientifically correct position of maintaining the finding.

The comment period is also much shorter than usually expected for regulations like this, as pointed out by a comment made by the Attorneys General of several states. The comment period is likely smaller than legally required of the EPA, just another example of the EPA breaking the law to try to kill you. After this comment, EPA did extend the comment period… by one week, from September 15 to September 22. Which is still not as long as the legal requirement.

Public comments can be submitted here. In case you get lost, the docket code is EPA-HQ-OAR-2025-0194.

If Zeldin pushes forward with his idea despite the inevitable public opposition to a plan to raise Americans’ costs and make their lives more deadly, the move will likely be caught up in courts for years, wasting Americans’ time and money and jeopardizing American competitiveness as the world rapidly moves towards improving vehicle efficiency without us.

Even if this clearly unwise and probably illegal move loses in court eventually, we still will have lost time in the transition – giving Zeldin’s oil masters some extra runway to sell their poison to us, and ensuring America’s competitors get a leg up in the transition to cleaner technologies while Americans remain forever poorer and sicker as a result of the republican party’s actions.

Public comments on this ridiculous plan are open through September 22 at 11:59PM EDT, 8:59PM PDT. Comments can be submitted here. In case you get lost, the docket code is EPA-HQ-OAR-2025-0194. EPA has to respond to legitimate concerns made during public comment periods or else the rule could be voided, so the more substantive your comment, the better.


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