Tesla's "summons" feature is under investigation following reports of crashes. Getty Images

U.S. regulators have opened an investigation into 2.6 million Teslas after reports of crashes involving the use of company technology that allows drivers to remotely command their vehicle to return to them, or move to another location, using a phone app.

The National Highway Traffic Safety Administration also said Tuesday that Tesla did not report any of the accidents. Tesla is under order to report crashes on “publicly accessible roads” involving vehicles being operated through its autonomous driving technology.

The new investigation follows another probe launched in October looking into the company's “Full Self-Driving” system after getting reports of crashes in low-visibility conditions, including one that killed a pedestrian. That investigation covers 2.4 million Teslas from the 2016 through 2024 model years.

Tesla did not respond to a request for comment from The Associated Press on Tuesday.

One driver filed a complaint after a crash while using Tesla's “Actually Smart Summon” technology and NHTSA is looking into another three similar incidents based on media reports, the NHTSA said. The agency is looking into 12 total incidents reported by users of the technology.

Each of the vehicles failed to detect posts and other parked vehicles, according to the NHTSA.

Regulators say the vehicles struck objects because the users had "too little reaction time to avoid a crash, either with the available line of sight or releasing the phone app button, which stops the vehicle’s movement.”

Shares of Tesla Inc., based in Austin, Texas, slid more than 4% in late afternoon trading Tuesday.

Musk has complained that U.S. regulations are too onerous and are holding back the development of self-driving cars. Ethics experts are worried that once President-elect Donald Trump takes office, Musk will push him to ease oversight of Tesla, which just suffered its first decline in annual sales in more than a decade.

Musk donated an estimated $250 million to Trump's presidential campaign and is a frequent guest at Trump's Mar-a-Lago, vetting cabinet nominees and meeting with foreign heads of state. Trump has put Musk in charge of an advisory group, the Department of Government Efficiency, that will recommend where to cut government expenses and staff at federal agencies and reduce regulation.

The NHTSA said Tuesday it will look into the top speed that Teslas can reach when users deploy its “summons” technology, as well as restrictions on public roads and line of sights requirements. It also said it expects to check for any “connectivity delays" with the app that could result in increased stopping distance.

Tesla’s Model 3 owner’s manual says that its “summons” feature is designed for use only in parking lots and driveways on private property and is disabled on public roads.

The new probe covers 2016-2025 Model S and X vehicles, 2017-2025 Model 3, 2020-2025 Model Y equipped with Tesla's Full Self-Driving driver assistance system.

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Houston AI energy forecasting company lands investment from Samsung Ventures

funding for forecasts

Amperon, a Houston-based AI-powered forecasting solutions company, has received an investment for an undisclosed amount from Samsung Ventures, the corporate venture arm of Samsung Group.

According to Amperon, the funding will be put toward the company's global growth and next-generation product development. Samsung Ventures invests in emerging businesses developing technologies for the AI, advanced devices and energy-related sectors.

“Samsung Ventures’ investment is a strong validation of our mission to transform the way energy is forecasted and traded,” Sean Kelly, CEO and co-founder of Amperon, said in a news release. “Samsung’s global footprint and leadership in semiconductors, data infrastructure, and AI acceleration make them a natural fit as we expand Amperon’s reach into energy-intensive sectors like data centers. Their track record of scaling next-generation technologies aligns perfectly with our vision to build a more intelligent, resilient, and data-driven energy system.”

Amperon was founded in 2018. Its AI models combine real-time weather, consumption and market data for energy retailers, utilities and independent power producers.

Last year, the company launched its weather-informed grid demand Mid-Term Forecast (MTF), which provides users with data on electricity demand up to seven months in advance. It also secured strategic investments from Acario, the corporate venture capital and innovation division of Tokyo Gas, as well as National Grid Partners, the venture investment and innovation arm of National Grid (NYSE: NGG).

After expanding into Europe in 2024, the company has continued to see international growth, and currently operates in the U.S., Canada, Mexico, Australia, Europe and the Middle East.

“Amperon has demonstrated strong technical capabilities and global traction in a rapidly evolving energy landscape,” a spokesperson for Samsung Ventures added in the release. “Their ability to forecast and model real-time energy data at global scale positions them as a key enabler of smarter energy systems and climate resilience. We are pleased to invest in a company developing technologies that support a more sustainable and digitized world.”

Solar surpasses coal to become ERCOT’s third-largest power source in 2025

by the numbers

Solar barely eclipsed coal to become the third biggest source of energy generated for the Electric Reliability Council of Texas (ERCOT) in 2025, according to new data.

In 2024, solar represented 10 percent of energy supplied to the ERCOT electric grid. Last year, that number climbed to 14 percent. During the same period, coal’s share remained at 13 percent.

From the largest to smallest share, here’s the breakdown of other ERCOT energy sources in 2025 compared with 2024:

  • Combined-cycle gas: 33 percent, down from 35 percent in 2024
  • Wind: 23 percent, down from 24 percent in 2024
  • Natural gas: 8 percent, down from 9 percent in 2024
  • Nuclear: 8 percent, unchanged from 2024
  • Other sources: 1 percent, unchanged from 2024

Combined, solar and wind accounted for 37 percent of ERCOT energy sources.

Looking ahead, solar promises to reign as the star of the ERCOT show:

  • An ERCOT report released in December 2024 said solar is on track to continue outpacing other energy sources in terms of growth of installed generating capacity, followed by battery energy storage.
  • In December, ERCOT reported that more than 11,100 megawatts of new generating capacity had been added to its grid since the previous winter. One megawatt of electricity serves about 250 homes in peak-demand periods. Battery energy storage made up 47 percent of the new capacity, with solar in second place at 40 percent.

The mix of ERCOT’s energy is critical to Texas’ growing need for electricity, as ERCOT manages about 90 percent of the electric load for the state, including the Houston metro area. Data centers, AI and population growth are driving heightened demand for electricity.

In the first nine months of 2025, Texas added a nation-leading 7.4 gigawatts of solar capacity, according to a report from data and analytics firm Wood Mackenzie and the Solar Energy Industries Association.

“Remarkable growth in Texas, Indiana, Utah and other states ... shows just how decisively the market is moving toward solar,” says Abigail Ross Hopper, president and CEO of the solar association.