

News
Tesla and Octopus Energy team up to bring green power supply to German Powerwall 2 owners
Tesla teamed up with UK-based energy service provider Octopus Energy again. This time, Tesla and Octopus Energy are seeking to supply “inexpensive green electricity” to homeowners in Germany who install solar panels and Powerwall 2 batteries in their homes.
On Monday, October 18, the US automaker announced the Tesla electricity tariff from Octopus Energy. According to Reuters, the Tesla electricity tariff is a service that enables homeowners to top-up their power supply. The service is only available to households with solar panels and Tesla Powerwall 2 battery storage units installed.
“The Tesla electricity tariff for Powerwall owners provides you with inexpensive green electricity if the electricity you generate yourself is not enough,” explained Octopus Energy. “A low basic price ensures that your expenses for electricity from the grid remain low. Compare your current provider and switch to the Tesla electricity tariff powered by Octopus Energy today.”
The Tesla electricity tariff promises low costs to customers. Homeowners who choose to avail of the service can expect to pay a low monthly basic price, a working price per kWh with no surcharge, and a fixed fee of €3 per month to Octopus Energy.
Tesla clarifies that prices will depend on the customer’s location. The automaker also stated that customers can change or cancel their Tesla electricity tariff every month, emphasizing that there will be no 12 or 24-month binding periods. Octopus Energy adds that termination of the Tesla electricity tariff incurs no extra costs and does not affect the customer’s Powerwall purchase.
Since the middle of the year, Tesla and Octopus Energy have been testing the service in Baden-Württemberg and Bavaria. NTV noted that Tesla and Octopus Energy aim to utilize Powerwall 2 home batteries in Germany into a virtual power plant, similar to those used in Australia and the United States.
Tesla and Octopus Energy already work together in the United Kingdom. The two companies launched the Tesla Energy Plan back in the UK as a viable utility service option. Tesla Energy was in the background as the company prioritized its automotive division these last few years, but the energy sector seemed to be making significant strides until the pandemic.
During the 2021 Shareholders Meeting, Elon Musk predicted that Tesla Energy might make more significant progress next year. He explained that Tesla had to prioritize the automotive sector again this year because of global supply chain challenges.
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Elon Musk
xAI launches Grok 4 with new $300/month SuperGrok Heavy subscription
xAI also introduced SuperGrok Heavy, which is priced at $300 per month.

xAI, the artificial intelligence company founded by Elon Musk, has officially launched its latest flagship models, Grok 4 and Grok 4 Heavy. Alongside the release, the company introduced its most premium subscription tier to date, SuperGrok Heavy, which is priced at $300 per month and targeted at power users and developers.
Grok 4 is designed to compete with top-tier AI models like OpenAI’s ChatGPT and Google’s Gemini. As per xAI, Grok 4 demonstrates frontier-level performance across several benchmark evaluations.
On Humanity’s Last Exam, an extensive test designed to evaluate general knowledge, Grok 4 scored 25.4% without using external tools, outperforming OpenAI’s o3 (high), which scored 21%, and Gemini 2.5 Pro, which scored 21.6%.
When equipped with tools, Grok 4 Heavy scored 44.4%, making it the top-performing model in that category. For context, Gemini 2.5 Pro with tools scored 26.9%, as noted in a TechCrunch report.
xAI also highlighted Grok 4 Heavy’s “multi-agent” system, which enables multiple instances of the model to solve a problem in parallel and compare answers, similar to a study group. This collaborative approach is intended to improve both reasoning and accuracy in complex tasks.
The company also shared results from the ARC-AGI-2 benchmark, where Grok (Thinking) achieved new state of the art (SOTA) score on the test with 15.9%. As per Arc Prize in a post on X, this score is “nearly double(s) the previous commercial SOTA and tops the current Kaggle competition SOTA.”
The $300/month SuperGrok Heavy plan grants users early access to Grok 4 Heavy, as well as upcoming product features. Upcoming capabilities that are planned for release in the coming months include an AI coding model in August, a multi-modal agent in September, and a video generation system in October.
Grok 4 and Grok 4 Heavy are available via API as part of xAI’s push to engage developers and enterprise users. The company’s enterprise platform, which launched just two months ago, will also expand via partnerships with cloud hyperscalers to bring Grok models to broader infrastructure environments.
News
EVs getting cleaner more quickly than expected in Europe: study
Battery-electric vehicles are still championing emissions reductions, and a new analysis suggests they’re doing so even more quickly than previously expected.

As Europe’s electricity mix is getting cleaner, battery-electric vehicles (BEVs) are also offering a larger climate advantage than previously expected, according to the results of a new study released this week.
On Wednesday, the International Council on Clean Transportation (ICCT) released a study noting that BEVs sold today produce 73 percent fewer life-cycle greenhouse gas emissions than internal combustion engine (ICE) vehicles, even factoring in production. This figure also represents a 24-percent improvement upon the organization’s 2021 estimates for this year, meaning that BEVs are getting cleaner more quickly than expected as the continent’s renewable programs continue to grow.
The study was comprised of a comprehensive life-cycle analysis of all major powertrain types, and the results suggest that BEVs are the only widely available powertrain that can slash emissions levels enough to meet climate goals. By contrast, the study’s results suggest that other clean energy powertrains, such as hybrids and plugin hybrids, only have a marginal impact, if any, on reducing the overall climate impact of the transportation sector.
“Battery electric cars in Europe are getting cleaner faster than we expected and outperform all other technologies, including hybrids and plug-in hybrids,” says ICCT researcher Dr. Marta Negri. “This progress is largely due to the fast deployment of renewable electricity across the continent and the greater energy efficiency of battery electric cars.”

Credit: International Council on Clean Transportation (ICCT)
READ MORE ON ELECTRIC VEHICLES: Study reveals hybrids could have up to 4.9x lifetime emissions vs. BEVs
ICCT Senior Researcher Dr. Georg Bieker says he also hopes the analysis can help fight misinformation regarding BEV powertrains. For example, he notes that, while it’s true that manufacturing emissions for BEVs can be up to 40 percent higher than for ICE vehicles, this is quickly offset by an electric automobile after just around 17,000 km (~10,563 miles) of driving.
“We hope this study brings clarity to the public conversation, so that policymakers and industry leaders can make informed decisions,” Dr. Bieker says. “We’ve recently seen auto industry leaders misrepresenting the emissions math on hybrids. But life-cycle analysis is not a choose-your-own-adventure exercise.”
Additionally, the ICCT study covers emissions from both vehicle and battery production, recycling, fuel and electricity production, fuel consumption, and maintenance.
“Our study accounts for the most representative use cases and is grounded in real-world data,” Dr. Bieker adds. “Consumers deserve accurate, science-backed information.”
News
Tesla executive teases plan to further electrify supply chain
One of Tesla’s top executive hints at how Tesla is further electrifying its supply chain.

A high-level Tesla executive has said the company is working to further electrify its supply chain, following a successful road test with the Semi this week.
After Tesla supplier thyssenkrupp completed a successful 5,000-mile winter trial with the Semi this week, Dan Priestley, the company’s Director of Semi Engineering, noted on X that the demonstration is a part of larger efforts to electrify more of the supply chain. The executive said that the company is already working to help suppliers like thyssenkrupp implement the Semi into their operations, particularly due to its cost savings and reliability.
Following the thyssenkrupp demo, the supply chain company has also begun integrating the Semi into its fleet, and Priestley suggests that more are still to come:
Working with our suppliers and logistics partners to electrify Tesla’s supply chain. With lower cost and higher reliability, it just makes sense. thyssenkrupp pushed the truck hard over this demo and now plans to integrate Semi into their fleet.
🚨 A Tesla Semi rolling around near Gigafactory Texas
If you remember, the Drone GOAT 🐐 @JoeTegtmeyer spotted one on factory property last week!pic.twitter.com/tvchIQar1u
— TESLARATI (@Teslarati) June 10, 2025
READ MORE ON TESLA SEMI: Tesla Full Self-Driving displays impressive collision avoidance with Semi
Tesla Semi factory nears official production as trials continue to impress
Tesla’s early Semi trials received positive results from both thyssenkrup and ArcBest’s ABF Freight this week, with the latter company logging 4,494 miles during a pilot period, and averaging 321 miles per day despite a 7,200-foot climb over Donner Pass.
The company has also been constructing a factory for volume Semi production at its Gigafactory in Nevada, and in recent weeks, the plant is looking nearly complete. Semi frames have been spotted in increasing numbers outside the facility recently, suggesting that Tesla is nearing early production on site.
The company also hired more than 1,000 workers for the Semi factory in April, while the plant is eventually expected to produce as many as 50,000 Semi units annually.
Tesla reveals Semi fleet data, shows off new feature and infrastructure plans
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