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Bitcoin is a digital currency. Whether that is a good thing or not is beside the point. What is important is that as a creature of the digital world, it relies on servers powered by electricity for its existence — a lot of them. Even though the use of renewable energy has surged in the past decade, the majority of electricity today still comes from burning fossil fuels, mostly coal. That means the digital world we have created — all our cell phones, streaming TV, video games, internet of things, and yes, bitcoin — creates lots of carbon emissions.

According to the BBC, the carbon footprint of our gadgets, the internet, and the systems supporting them account for about 3.7% of global greenhouse emissions — about the same as the airline industry. But the problem is expanding. Mike Hazas, a researcher at Lancaster University, tells the BBC emissions from digital devices are expected to double by 2025.

Bitcoin goes beyond being a digital currency, though. It’s extra energy intensive on purpose — bitcoin mining is supposed to be hard and costly.

In March, Tesla shocked the world when it said it would begin allowing customers to pay for their cars using bitcoin. 6 weeks later, the company reversed course and stopped accepting bitcoin for purchases. In a statement, Elon Musk said, “Tesla has suspended vehicle purchases using bitcoin. We are concerned about rapidly increasing use of fossil fuels for bitcoin mining and transactions, especially coal, which has the worst emissions of any fuel.

“Cryptocurrency is a good idea on many levels and we believe it has a promising future, but this cannot come at great cost to the environment. Tesla will not be selling any bitcoin and we intend to use it for transactions as soon as mining transitions to a more sustainable energy. We are also looking at other cryptocurrencies that use <1% of bitcoin’s energy/transaction.”

But now it appears Tesla and Musk have rethought their position. On Wednesday, Musk told a “B Word” conference that Tesla will most likely start accepting bitcoin again.

“I wanted a little bit more due diligence to confirm that the percentage of renewable energy usage is most likely at or above 50%, and that there is a trend towards increasing that number, and if so, Tesla would resume accepting bitcoin. Most likely the answer is that Tesla would resume accepting bitcoin. Tesla’s mission is accelerating the advent of sustainable energy. We can’t be the company that does that and also not do appropriate diligence on the energy usage of bitcoin.”

Editor’s note: The issue isn’t ONLY what type of power plant powers miners. Every serious/decent/real plan showing how we can get the climate crisis under control indicates that we need to massively reduce energy use while we quickly scale of renewable energy projects. Bitcoin drives us in the opposite direction, as it’s extremely, ridiculous, insanely energy intensive. Jacking up energy demand means that the solar panels and wind turbines we feverishly produce will be used to satisfy increasing energy demand more than to retire fossil fuel power plants. It’s just not a good idea.

Musk added that he personally owns bitcoin, ethereum, and dogecoin, separate and apart from the bitcoin that Tesla and SpaceX own. “I might pump, but I don’t dump,” Musk said. “I definitely do not believe in getting the price high and selling. I would like to see bitcoin succeed.”


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Electrek FSGP 2025: New teams, new cars, same solar spirit

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Electrek FSGP 2025: New teams, new cars, same solar spirit

The sun has set on a frantic day of scrutineering at this year’s Electrek Formula Sun Grand Prix (FSGP), as teams scramble to qualify for a spot on the starting line tomorrow morning. Electrek FSGP 2025 is shaping up to be one of the event’s most attended ever, thanks to a strong showing of first-time and returning schools. But that also means new and unproven vehicles on the track.

Today, I walked through a couple of bays and talked with a few of the teams able to spare a minute; almost all of them were debuting completely new cars that were years in the making. Building a solar car is no easy feat. It’s not just the engineering and technical know-how that’s often a hurdle for them; it’s more often monetary. However, one of the things that makes this event so special is the camaraderie and collaboration that happen behind the scenes.

Northwestern University is back with a completely new car this season, its eighth since the team’s original inception in 1997 during the GM Sunrayce days. Its motor controller, which is responsible for managing the flow of power from the batteries to the motor, was given to them by the Stanford team. Stanford had extras and could spare one for Northwestern, which needed a replacement. It doesn’t stop there. Two members of the Northwestern team (Shannon and Fiona) told me four other teams helped them with a serious tire replacement around 1 a.m. Wednesday morning, saving them from missing important parts of scrutineering.

This is also an exciting year for the West Virginia team, which is celebrating its 35th anniversary as a solar car team, making them one of the oldest teams on the track. With age comes wisdom though: WV is competing again this year with its single-occupant vehicle, Sunseeker. The team ran into issues after last year’s American Solar Challenge (ASC) cross-country event when the vehicle’s control arm, an important part of the suspension that connects the wheels to the chassis, broke. They tell me this year they’re back with a completely redesigned control arm made of both aluminum and steel. Thank you, Hayley, John, and Izzy, for taking the time to talk.

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We’re also seeing new builds this year from the University of Florida, the University of Puerto Rico, NC State, and UC Irvine. Believe it or not, the latter team has never competed in an American Solar Challenge/Formula Sun Grand Prix. This is their first year. UC Irvine doesn’t expect to be on the starting line tomorrow but hopes to be on the track soon after.

On the other hand, we have tried-and-proven cars like my personal favorite, Polytechnique Montréal’s Esteban, which undergoes minor improvements each year. I talked a little bit with this team today, and they told me the car’s motor was dropped, disassembled, and cleaned in preparation for the event. Polytechnique Montréal has passed scrutineering and will appear on the starting line tomorrow.

Polytechnique Montréal

Teams that haven’t wrapped up scrutineering in the last three days can still complete it, though doing so will eat into time on track.

Last year, École de Technologie Supérieure (ETS) and Polytechnique Montreal took first place in the Single-Occupant Vehicle (SOV) and Multi-Occupant Vehicle (MOV) classes, respectively. There’s something in the water in Canada.

You can learn more about the different classes and the specific rules here.

I’ll continue to post more updates as the event continues!

2025 Electrek FSGP schedule

The 2025 Electrek FSGP will again be held at the National Corvette Museum Motorsports Park in Bowling Green, Kentucky, which, interestingly enough, General Motors occasionally uses for Corvette testing and development. A bit of a full-circle moment being so close to the company that started it all.

The event is open to the public and FREE to attend. Come see the solar car race up close!

Racing starts on July 3 from 10am to 6pm CT and continues through July 5 from 9am to 5pm CT.

July 2 (Wednesday)

  • 9am–7pm: Scrutineering
  • 10am–8pm: Altair Challenge

July 3 (Thursday)

  • 10am–12pm: Altair Challenge
  • 10am–6pm: Hot Track
  • 6pm–8pm: Evening Charging

July 4 (Friday)

  • 7am–9am: Morning Charging
  • 9am–5pm: Hot Track
  • 5pm–8pm: Evening Charging

July 5 (Saturday)

  • 7pm: Awards Ceremony
  • 7am–9am: Morning Charging
  • 9am–5pm: Hot Track

2025 Electrek FSGP teams

Purdue

Kentucky

Florida

Berkeley

UT Austin

Iowa State

RIT

Northwestern

Michigan State

Stanford

Illinois State

Washington

Virginia Tech

Illinois

Waterloo

British Columbia

Missouri S&T

Georgia Tech

Poly Montreal

SIUE

Calgary

Rutgers

Toronto

Florida Poly

Virginia

UC Irvine

Western Ontario

NC State

McMaster

Montana State

UOP

Western Michigan

Puerto Rico

App State

If you’re interested in joining us in sponsoring these events, please get in touch here!

Featured image via Cora Kennedy for Electrek FSGP/ASC.

Note: The Formula Sun Grand Prix is not in any way associated or affiliated with the Formula 1 companies, FORMULA 1 racing, or the FIA Formula One World Championship.

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Troubling times for Tesla, Nissan, and Dodge – plus some fun yellow stuff!

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Troubling times for Tesla, Nissan, and Dodge – plus some fun yellow stuff!

Tesla’s Q2 results are in, and they are way, way down from Q2 of 2024. At the same time, Nissan seems to be in serious trouble and the first-ever all-electric Dodge muscle car is getting recalled because its dumb engine noises are the wrong kind of dumb engine noises. All this and more on today’s deeply troubled episode of Quick Charge!

We’ve also got an awesome article from Micah Toll about a hitherto unexplored genre of electric lawn equipment, a $440 million mining equipment deal, and a list of incompetent, corrupt, and stupid politicians who voted away their constituents’ futures to line their pockets.

Prefer listening to your podcasts? Audio-only versions of Quick Charge are now available on Apple PodcastsSpotifyTuneIn, and our RSS feed for Overcast and other podcast players.

New episodes of Quick Charge are recorded, usually, Monday through Thursday (and sometimes Sunday). We’ll be posting bonus audio content from time to time as well, so be sure to follow and subscribe so you don’t miss a minute of Electrek’s high-voltage daily news.

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Got news? Let us know!
Drop us a line at tips@electrek.co. You can also rate us on Apple Podcasts and Spotify, or recommend us in Overcast to help more people discover the show.


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Your personalized solar quotes are easy to compare online and you’ll get access to unbiased Energy Advisors to help you every step of the way. Get started here.

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OpenAI says Robinhood’s tokens aren’t equity in the company

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OpenAI says Robinhood's tokens aren't equity in the company

Jaque Silva | Nurphoto | Getty Images

OpenAI is distancing itself from Robinhood‘s latest crypto push after the trading platform began offering tokenized shares of OpenAI and SpaceX to users in Europe.

“These ‘OpenAI tokens’ are not OpenAI equity,” OpenAI wrote on X. “We did not partner with Robinhood, were not involved in this, and do not endorse it.”

The company said that “any transfer of OpenAI equity requires our approval — we did not approve any transfer,” and warned users to “please be careful.”

Robinhood announced the launch Monday from Cannes, France, as part of a broader product showcase focused on tokenized equities, staking, and a new blockchain infrastructure play. The company’s stock surged above $100 to hit a new all-time high following the news.

“These tokens give retail investors indirect exposure to private markets, opening up access, and are enabled by Robinhood’s ownership stake in a special purpose vehicle,” a Robinhood spokesperson said in response to the OpenAI post.

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Robinhood offered 5 euros worth of OpenAI and SpaceX tokens to eligible EU users who signed up to trade stock tokens by July 7. The assets are issued under the EU’s looser investor restrictions via Robinhood’s crypto platform.

“This is about expanding access,” said Johann Kerbrat, Robinhood’s SVP and GM of crypto. “The goal with tokenization is to let anyone participate in this economy.”

The episode highlights the dynamic between crypto platforms seeking to democratize access to financial products and the companies whose names and equity are being represented on-chain

U.S. users cannot access these tokens due to regulatory restrictions.

Robinhood hits record high as OpenAI, SpaceX go on-chain

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