Idealab and Heliogen Founder Bill Gross speaks onstage during Vox Media’s 2022 Code Conference on September 08, 2022 in Beverly Hills, California.
Jerod Harris | Getty Images Entertainment | Getty Images
Bill Gross is best known for founding the technology incubator Idealab in 1996, after starting a handful of companies in software, education tech and online services spaces.
In the quarter-century since, Idealab has has started more than 150 companies and had more than 45 successful exits. Today, Gross devotes virtually all of his time to being the CEO of clean energy company Heliogen, which he launched out of Idealab in 2013, scoring Bill Gates as an early investor.
But Gross has always been a climate tech entrepreneur. He’s just had to wait for the world to catch up with him a bit.
He actually started a solar device company when he was in high school, long before he got into software, and the money he made helped him pay for college.
Gross grew up in the San Fernando Valley in Los Angeles. When he was 15, in 1973, gas was rationed after OPEC imposed an oil embargo against the United States in order to punish the U.S. for providing support to Israel in the Arab-Israel war.
“You only could buy five dollars of gasoline per day. And I remember that my mother couldn’t buy enough gasoline to drive me to school,” Gross told CNBC in a video interview earlier in the fall.
So Gross had to ride his bike to high school. “As I’m riding both ways on the bicycle, I’m sitting here thinking, ‘It’s crazy that there’s somewhere else in the world that could decide to cut off your fuel supply, the thing that people need for their livelihood.’ I didn’t understand anything about climate change, or energy or anything. I just thought, ‘Someone else could do that?! That’s crazy.'”
This thought is still relevant now almost 50 years later, as Russia has cut off supplies of gas it is sending to Europe in response to the Ukraine war.
Gross went to the library after school to read about alternative renewable forms of energy such as solar energy and wind energy in the likes of Popular Science or Scientific American magazines. He got excited about the idea of renewable energy, had just taken trigonometry in school and used his newfound knowledge of both to make a couple of devices based on the idea of catching the sunlight and concentrating it.
Notes from when Bill Gross was a teenager developing the solar device that he went on to sell by mail in the 1970’s.
Photo courtesy Bill Gross
One device he made was a parabola-shaped solar concentrator that could be used to create a solar oven or solar cooker. The other was a Stirling engine, which converts heat energy into kinetic or mechanical energy.
“Because I was reading Popular Science magazine, I saw people used to take out little ads in the back,” Gross told CNBC. “And I had $400 of bar mitzvah money leftover, so I took out a small add in the back of Popular Science advertising ‘Kits and plans to make your own solar concentrator,’ and I started selling them!”
He would go on to sell 10,000 of these plans and kits starting at $4 apiece. Personal computers didn’t yet exist, so he typed the material on a typewriter and made the drawings himself by hand.
An advertisement that Bill Gross placed in the back of Popular Science magazine to advertise his solar devices company. The plans Gross sold were $4.00, but the ad says 25 cents to get a catalog, because he had a few different offerings.
Courtesy Bill Gross
He put what he made towards his college tuition. People from all over the country bought the kits and would send Gross a check or cash. It was his first foray into entrepreneurship, which was exciting, he said, and the experience served to change the trajectory of his life in other ways, too.
“I was really passionate about it back then. It really affected my life,” Gross told CNBC. “I wrote about that little business I started — it was called Solar Devices — on my application to college and it got me into CalTech. So it probably had a huge impact on my direction.”
For a long time, ‘nobody cared’
Gross studied mechanical engineering at CalTech while continuing to run the Solar Devices business during his first year, but then college got too demanding and he couldn’t keep up with running the business. Gross graduated from CalTech in 1981, right around the time IBM released its first mass-market personal computer.
Solar Devices order tracking from Bill Gross, circa 1970’s.
Photo courtesy Bill Gross
“I have these two seminal things that happen in my life: The Arab oil embargo and now the PC is invented basically on my day of graduation in 1981,” Gross told CNBC. “So I went down and bought an IBM PC. And I started learning how to program and I had a detour for 20 years doing software.”
Gross’ detour into software started in the early 1980’s when hewrote accounting software inside of Lotus 1-2-3 to help manage his business making and selling high-performance loudspeakers. He started selling that software for $695. Gross, his brother and two CalTech friends came up with a natural language interface to Lotus 1-2-3, which they showed off at a Las Vegas tech show in 1985. Lotus ended up acquiring the product (and the four of them) for $10 million.
Gross later founded an educational software company and sold it to Vivendi for $90 million, then started tech incubator Idealab at the dawn of the dot-com boom. In the early 2000s, he decided to begin to pivot back to climate tech, this time with some money in the bank.
Bill Gross graduating from college.
Photo courtesy Bill Gross.
He started doing research and development in the space, but there wasn’t enough demand for solar energy tech. “I was way too early. No one cared,” Gross told CNBC.
“I remember I was working on this when Al Gore came out with ‘Inconvenient Truth.’ Still, nobody cared. I remember working on this in 2008 during the recession, nobody cared. I remember in the early 2010, 2012, people started talking about it, but there was no Greta yet,” Gross said, referring to the climate activist Greta Thunberg, who started protesting a lack of climate change action in 2018. “There was no movement. And certainly there was no inflation Reduction Act, which is a game changer,” Gross said.
In 2010, Gross heard Bill Gates speak at a TED conference about needing to make energy and energy storage cheaper. After that talk, Gross approached Gates and shared his idea of using computational power to improve the efficiency of solar power. Gates ended up investing in Gross’s idea, seeing the potential to replace many industrial processes that require high heat and burn fossil fuels to get there.
In 2013, Gross launched Heliogen, which uses artificial intelligence to position a collection of mirrors located in a circle around a central tower to reflect the sunlight back with maximum impact.
One critical component of Heliogen’s approach is built-in energy storage. One limiting factor for solar energy is its intermittency, which means it only delivers power when the sun is shining. But Heliogen stores energy as heat in a thermos of rocks — something traditional solar panels cannot do without batteries, as they turn the sun’s rays immediately into electricity.
“We’re gathering the energy when the sun is out. But we’re delivering the energy continuously because the energy is coming out of the rock bed,” Gross told CNBC. “And basically we are recharging the rock bed, like you would recharge your battery. The difference is a battery expensive, and rock bed is cheap.”
In 2019, Heliogen announced it had successfully concentrated solar energy to temperatures over 1,832 degrees Fahrenheit.
A bird’s eye view of the concentrated solar technology Heliogen is working to build and commercialize. This is the demonstration project in Lancaster, Calif.
Photo courtesy Heliogen
“Heliogen is the culmination of my life’s work,” Gross told CNBC, because it uses both software and renewable energy expertise.
The company had its first prototype in 2015, “but then, still, nobody cared. Couldn’t get any customers,” Gross said. He did get a couple of customers, but, it was still “struggling, struggling, struggling.” By 2019, Heliogen had the first large-scale system built and this time, “the world went crazy,” Gross said. “We got so much press and publicity, and customers started calling us all over who wanted to replace fossil fuels with concentrated sunlight, and then Covid hit,” Gross said.
After a bit of a Covid slowdown, interest started picking up again as the urgency around decarbonizing mounted and as energy price volatility made companies rethink their energy supply strategies, Gross said. The company went public via SPAC in a deal that landed $188 million of gross cash proceeds to Heliogen and on Dec. 31, 2021, Heliogen started trading.
The company is not yet profitable, losing $108 million in the first nine months of the year, but that’s expected as the company scales, according to Gross.
“We projected we would run at a loss for the few years of operation as we drive down the cost with volume production and the renewable energy production learning curve,” Gross told CNBC.
Heliogen’s first commercial grade project is in the final stages of permitting and aims to break ground next year in Mojave, California. The concentrated solar field is funded with $50 million from Woodside Energy, a wholly owned subsidiary of the Australian energy producer Woodside Petroleum, and $39 million from the U.S. Department of Energy.
This is the demonstration project in Lancaster, Calif. of the the concentrated solar technology Heliogen is working to build and commercialize.
Photo courtesy Heliogen
While Gross has been ahead of the curve for most of his climate career, he’s confident the industry is catching up with him now. As the urgency surrounding climate change has become more widely understood, corporate executives face pressure from stakeholders to clean up their corporate emissions.
“But then the final straw was price of fossil fuels went up like crazy. The price of fossil fuels after Russia invaded Ukraine is a game changer,” Gross told CNBC. “Now, it’s not just for CO2 emissions, now you can save money. Now, this is the ultimate thing, which is make the energy transition be about reducing your cost, not about increasing your cost.”
There’s no time to waste.
“When I was a teenager, there was 320 parts per million of CO2 in the atmosphere,” said Gross, who is now 64 years old. “And today, there are 420.”
In a high-tech move that we can all get behind and isn’t dystopian at all, the City of Barcelona is feeding camera data from its city buses into an advanced AI, but they swear they’re not using the footage to to issue tickets to bad drivers. Yet.
UPDATE 06DEC2025: the ticket bot cometh to Chicago.
Last month, the Chicago Transit Authority (CTA) contracted with Hayden AI to equip six of its transit buses with AI-powered license plate readers intended to target illegally parked vehicles in an area bound by North Avenue, Roosevelt Road, Lake Michigan and Ashland Avenue.
As with similar pilots in Barcelona and NYC, the Hayden AI technology captures information from vehicles illegally blocking bus and bike lanes, then submits its “findings” to a human reviewer for confirmation. If the reviewer agrees with the AI, they can issue a fine of $90 for parking in a bus lane, $250 for bike lane obstruction, $50 for parking in expired meters outside of the central business district, and $140 for personal vehicles parked in commercial loading zones.
Advertisement – scroll for more content
Despite those hefty fines, Chicago Mayor Brandon Johnson is quick to point out that the goal of the program isn’t to generate revenue.
“Every Chicagoan deserves a transportation system that is safe, reliable, and efficient,” said Mayor Johnson, in a statement. “By keeping bus and bike lanes clear of illegally parked vehicles, the Smart Streets pilot helps us protect our most vulnerable road users while improving the daily commute for riders across the city.”
The official release makes no mention of the fact that Hayden AI’s system generated nearly $21 million in revenue for the city in just a few months, despite the fact that thousands of those ticketed weren’t doing anything wrong.
We wrote about some of these issues back in Jun. You can read that original article, below, and let us know what you think of Chicago’s “non-revenue” claims in the comments.
Barcelona ticketing AI; via Hayden AI.
Barcelona and its Ring Roads Low Emission Zone have earned lots of fans by limiting ICE traffic in the city’s core. The city’s latest idea to promote mass transit is the deployment of an artificial intelligence system developed by Hayden AI for automatic enforcement of reserved lanes and stops to improve bus circulation – but while it seems to be working as intended, it’s raising entirely different questions.
“Bus lanes are designed to help deliver reliable, fast, and convenient public transport service. But private vehicles illegally using bus lanes make this impossible,” explains Laia Bonet, First Deputy Mayor, Area for Urban Planning, Ecological Transition, Urban Services and Housing at the Ajuntament de Barcelona. “We are excited to partner with Hayden AI to learn where these problems occur and how they are impacting our public transport service.”
Currently operating as a pilot program on the city’s H12 and D20 bus lines, the system uses cameras installed on the city’s electric buses to detect vehicles that commit static violations in the bus lanes and stops (read: stopping or parking where you shouldn’t). The Hayden AI system then analyses that data and provides statistical information on what it captures while the bus is driving along on its daily route.
Hayden AI says that, while it photographs and records video sequences and collects contextual information of the violation, its cameras do not record license plates or people and no penalties are being issued to drivers or owners of the vehicles.
So far so good, right? But it’s what happens once the six mont pilot is over that seems like it should be setting off alarm bells.
Big Brother Bus is watching
“You are being recorded” sign in a bus; via Barcelona City Council.
The footage is manually reviewed by a Transports Metropolitans de Barcelona (TMB) officer, who reportedly reviewed some 2,500 violations identified by AI in May alone. But, while the system isn’t being used to issue violations during the pilot program, it easily could.
And, in fact, it already has … and the AI f@#ked up royally.
AI writes thousands of bad tickets
NYC issued hundreds of thousands of tickets; via NBC.
When AI was given the ability to issue citations in New York City earlier this year, it wrote more than 290,000 tickets (that’s right: two-hundred and ninety thousand) in just three months, generating nearly $21 million in revenue for the city. The was just one problem: thousands of those drivers weren’t doing anything wrong.
What’s more, the fines generated by the AI powered cameras were supposed to be approved only after being verified by a human, but either that didn’t happen, or it did happen and the human operator in question wasn’t paying attention, or (maybe the worst possibility) the violations were mistakes or hallucinations, and the human checker couldn’t tell the difference.
In OpenAI’s tests of its newest o3 and o4-mini reasoning models, the company found the o3 model hallucinated 33% of the time during its PersonQA tests, in which the bot is asked questions about public figures. When asked short fact-based questions in the company’s SimpleQA tests, OpenAI said o3 hallucinated 51% of the time. The o4-mini model fared even worse: It hallucinated 41% of the time during the PersonQA test and 79% of the time in the SimpleQA test, though OpenAI said its worse performance was expected as it is a smaller model designed to be faster. OpenAI’s latest update to ChatGPT, GPT-4.5, hallucinates less than its o3 and o4-mini models. The company said when GPT-4.5 was released in February the model has a hallucination rate of 37.1% for its SimpleQA test.
I don’t know about you guys, but if we had a local traffic cop that got it wrong 33% of the time (at best), I’d be surprised if they kept their job for very long. But AI? AI has a multibillion dollar hype train and armies of undereducated believers talking about singularities and building themselves blonde robots with boobs. And once the AI starts issuing tickets to the AI that’s driving your robotaxi, it can just call its buddy AI the bank to send over your money. No human necessary, at any point, and the economy keeps on humming.
But, like – I’m sure that’s fine. Embrace the future and all that … right?
If you’re considering going solar, it’s always a good idea to get quotes from a few installers. To make sure you find a trusted, reliable solar installer near you that offers competitive pricing, check out EnergySage, a free service that makes it easy for you to go solar. It has hundreds of pre-vetted solar installers competing for your business, ensuring you get high-quality solutions and save 20-30% compared to going it alone. Plus, it’s free to use, and you won’t get sales calls until you select an installer and share your phone number with them.
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.
FTC: We use income earning auto affiliate links.More.
The Japanese agriculture equipment experts Kubota are partnering with Norwegian tech startup Kilter to co-develop, pilot, and promote the new Kilter AX-1 ultra high-precision weeding robot across Europe.
To accomplish those goals, the Kilter AX-1 uses a patented tech package it calls “Single Drop Technology.” Single Drop Technology combines AI weed recognition and ~6 mm placement accuracy to deliver micro-doses directly to weeds, protecting the crop and minimizing the impact to the surrounding soil.
Getting that 6 mm droplet application wasn’t easy. “You can’t buy a field-ready droplet applicator off the shelf,” Anders Brevik, CEO of Kilter, told AgTechNavigator. “We had to design one that survives years of dust, vibration, temperature swings, and long operating days, while keeping droplet size, timing, and placement consistent. That takes deep agronomy knowledge, a lot of engineering, and thousands of hours of field testing.”
Advertisement – scroll for more content
Kilter says growers can reduce herbicide use by up to 95% by adopting the new AX-1, shifting selectivity from chemistry to smart application.
Kubota Europe’s Smart Farming Solutions Division, launched back in 2024, is working with the company’s European dealer network to train up sales staff and integrate the Kilter robot into Kubota’s broader farm solutions portfolio. There’s no word, yet, on pricing or if/when we’ll get the Kilter in North America.
If you’re considering going solar, it’s always a good idea to get quotes from a few installers. To make sure you find a trusted, reliable solar installer near you that offers competitive pricing, check out EnergySage, a free service that makes it easy for you to go solar. It has hundreds of pre-vetted solar installers competing for your business, ensuring you get high-quality solutions and save 20-30% compared to going it alone. Plus, it’s free to use, and you won’t get sales calls until you select an installer and share your phone number with them.
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.
FTC: We use income earning auto affiliate links.More.
Autonomous electric tractor concept; by John Deere.
Energy independence and cost control are top of mind for farmers, and more companies are rolling out electric equipment that can be charged by solar, wind, or even on-farm biogas. With the debut of its latest next-generation electric tractor at Agritechnica last month, John Deere is signaling that it intends to lead that revolution.
John Deere says the E-Power electric tractor prototypes that it’s been quietly teasing since 2022 will be as quiet as a car, as easy to drive as a golf cart, and require minimal upkeep – and all while providing the same performance as the company’s beloved diesel tractors.
“Our goal with the E-Power tractor is to ensure it performs the same jobs as its diesel counterparts and works with the same implements, while unlocking incremental value,” explains Derek Muller, business manager for battery electric vehicle systems at John Deere. “Through our electric lineup, we’ll look to reduce operational and maintenance costs, deliver powerful and reliable performance, and intuitive operation.”
The latest electric John Deere tractor prototype, recently unveiled at Agritechnica, is equipped with a 100 hp drive motor and two, additional motors. One 130 continuous hp electric motor for the PTO, and a third for the hydraulic pump. They’ll draw power from up to five KREISEL li-ion battery packs, allowing customers significant pricing flexibility based on their ability to determine how much power and run time they need (and are willing to pay for) to get their jobs done.
Advertisement – scroll for more content
Electric John Deere tractor
130 hp electric tractor shown at Agritechnica; by John Deere.
The customization will go well beyond just battery size. Deere plans to offer customers a number of different tractor and equipment options, and keep costs competitive by basing them on a vehicle common architecture.
“John Deere aims to develop a single electric concept that customers can configure to their own needs,” writes Bob Karsten, at Future Farming. “Buyers will be able to choose the number of batteries (up to five, totalling 195 kWh), the axle type (narrow or wide track), and the cab (either an orchard cab or the familiar 5M cab). In essence, buyers select their preferred battery capacity. With the largest battery (195 kWh), the tractor can operate for eight hours. The target is to enable fast charging up to 80% in 30 minutes.”
Deere revealed one version of that upcoming electric tractor (above) at Agritechnica last week, but despite being an early prototype, it’s a fully functional piece that’s already seen duty with some of John Deere’s most trusted customers.
Daniel, an orchard customer from California, said his experience with the electric tractor led him to believe it could help ease training new operators, “I do think the tractor is much easier for drivers to understand it and to drive it. It would take less time to teach them [operators] how to use it.”
Tyler, a vineyard customer in California, believes that a new electric tractor could help his operation meet its sustainability goals, “When we look at our carbon footprint, greenhouse gas emissions, we want to try and reduce those as we run our equipment to farm our vineyards, we want to be conscious of the community at large.”
You can check out a quick, virtual walkaround of John Deere’s E-Power electric tractor concept in this (admittedly older) video released around the ACT Expo, and expect more details and possible configurations at the upcoming CON/AGExpo conference in March.
John Deere E-Power configurations
SOURCE | IMAGES: John Deere.
If you’re considering going solar, it’s always a good idea to get quotes from a few installers. To make sure you find a trusted, reliable solar installer near you that offers competitive pricing, check out EnergySage, a free service that makes it easy for you to go solar. It has hundreds of pre-vetted solar installers competing for your business, ensuring you get high-quality solutions and save 20-30% compared to going it alone. Plus, it’s free to use, and you won’t get sales calls until you select an installer and share your phone number with them.
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.
FTC: We use income earning auto affiliate links.More.