News
Tales from Dandelion customers: geothermal heating, cooling, and energy independence
Behind every installation of a Dandelion geothermal heating and air conditioning unit is a story. These stories are different for each customer, but each tale involves a notable common factor — a move towards gaining independence from fossil fuels. Here are a couple of stories from Dandelion customers who turned to geothermal solutions, and never looked back.
The Engineer
An aerial view of Matthew VanDerlofske’s home, which is fitted with solar panels. (Photo: Dandelion Energy)
When software engineer Matthew VanDerlofske came across Dandelion Energy’s heating and air conditioning system, he realized that it was the perfect way to help his family step away from fossil fuels. For VanDerlofske, a key reason behind his adoption of Dandelion’s geothermal solutions is the savings offered by the system.
During the gas spike in 2008 and 2009, the software engineer admitted that his family was budgeting $600 in gas per month for their SUVs alone. They were also spending $1,600 worth of oil per year for heating, on top of 15 megawatts of electricity per year from the grid. Eventually, VanDerlofske and his family realized that it was time to “start weaning ourselves off fossil fuels.”
The family started in 2012, investing $6,700 to have 32 solar panels installed on their roof. They also traded in one of their gas-guzzling SUVs for a Chevy Volt. Later, the family added an additional 24 solar panels, allowing them to produce more power than they consume. The family also acquired a Chevy Bolt, their first all-electric car. VanDerlofske and his wife regarded Dandelion’s geothermal heating and air conditioning system as the next step in their pursuit of energy independence, as it allowed them to get all their heating and air conditioning needs from the ground.
The Environmentalists
Paul and Joanne Coons’ historic home in Clifton Park, NY. (Photo: Dandelion Energy)
Dandelion Energy customers Paul and Joanne Coons have always been passionate about the environment. At one point, Joanne, a high school environmental science teacher, took it upon herself to make her own biodiesel from restaurant waste, which she used on her diesel car. Together with her husband, she also experimented with burning home-brewed biodiesel at home, in order to help offset their house’s $4,500 annual heating cost.
The couple completely embraced the energy-independent lifestyle after they took on the task of renovating a dilapidated, historic house in Clifton Park, NY. The home, which had no buyers due to its condition, was transformed by the couple into one of the most energy-efficient homes in the country. Since then, the house has won several green building awards, and it has become certified as a LEED Platinum and NAHB Certified Green Building Emerald home.
To make their historic home energy independent, the Coons opted to install an array of rooftop and pole-mounted solar panels, which they use to help power the house and charge their Nissan Leaf and Toyota Prius Hybrid. The couple, who also has a reservation for the Tesla Model 3, also opted to have a Dandelion Air unit installed for heating and air conditioning. Referring to their biodiesel-brewing days, Paul stated that ground source heat pumps are the best of both worlds, since “you can heat and cool your home with the power of the sun, and you don’t have to keep fueling the system.”
-->Ultimately, customers who are already committing to sustainable energy through rooftop solar solutions can’t go wrong with a geothermal heating and air conditioning system. Read more about Dandelion Energy’s geothermal systems here.
News
Tesla is improving Giga Berlin’s free “Giga Train” service for employees
With this initiative, Tesla aims to boost the number of Gigafactory Berlin employees commuting by rail while keeping the shuttle free for all riders.
Tesla will expand its factory shuttle service in Germany beginning January 4, adding direct rail trips from Berlin Ostbahnhof to Giga Berlin-Brandenburg in Grünheide.
With this initiative, Tesla aims to boost the number of Gigafactory Berlin employees commuting by rail while keeping the shuttle free for all riders.
New shuttle route
As noted in a report from rbb24, the updated service, which will start January 4, will run between the Berlin Ostbahnhof East Station and the Erkner Station at the Gigafactory Berlin complex. Tesla stated that the timetable mirrors shift changes for the facility’s employees, and similar to before, the service will be completely free. The train will offer six direct trips per day as well.
“The service includes six daily trips, which also cover our shift times. The trains will run between Berlin Ostbahnhof (with a stop at Ostkreuz) and Erkner station to the Gigafactory,” Tesla Germany stated.
Even with construction continuing at Fangschleuse and Köpenick stations, the company said the route has been optimized to maintain a predictable 35-minute travel time. The update follows earlier phases of Tesla’s “Giga Train” program, which initially connected Erkner to the factory grounds before expanding to Berlin-Lichtenberg.
-->Tesla pushes for majority rail commuting
Tesla began production at Grünheide in March 2022, and the factory’s workforce has since grown to around 11,500 employees, with an estimated 60% commuting from Berlin. The facility produces the Model Y, Tesla’s best-selling vehicle, for both Germany and other territories.
The company has repeatedly emphasized its goal of having more than half its staff use public transportation rather than cars, positioning the shuttle as a key part of that initiative. In keeping with the factory’s sustainability focus, Tesla continues to allow even non-employees to ride the shuttle free of charge, making it a broader mobility option for the area.
News
Tesla Model 3 and Model Y dominate China’s real-world efficiency tests
The Tesla Model 3 posted 20.8 kWh/100 km while the Model Y followed closely at 21.8 kWh/100 km.
Tesla’s Model 3 and Model Y once again led the field in a new real-world energy-consumption test conducted by China’s Autohome, outperforming numerous rival electric vehicles in controlled conditions.
The results, which placed both Teslas in the top two spots, prompted Xiaomi CEO Lei Jun to acknowledge Tesla’s efficiency advantage while noting that his company’s vehicles will continue refining its own models to close the gap.
Tesla secures top efficiency results
Autohome’s evaluation placed all vehicles under identical conditions, such as a full 375-kg load, cabin temperature fixed at 24°C on automatic climate control, and a steady cruising speed of 120 km/h. In this environment, the Tesla Model 3 posted 20.8 kWh/100 km while the Model Y followed closely at 21.8 kWh/100 km, as noted in a Sina News report.
These figures positioned Tesla’s vehicles firmly at the top of the ranking and highlighted their continued leadership in long-range efficiency. The test also highlighted how drivetrain optimization, software management, and aerodynamic profiles remain key differentiators in high-speed, cold-weather scenarios where many electric cars struggle to maintain low consumption.
Xiaomi’s Lei Jun pledges to continue learning from Tesla
Following the results, Xiaomi CEO Lei Jun noted that the Xiaomi SU7 actually performed well overall but naturally consumed more energy due to its larger C-segment footprint and higher specification. He reiterated that factors such as size and weight contributed to the difference in real-world consumption compared to Tesla. Still, the executive noted that Xiaomi will continue to learn from the veteran EV maker.
“The Xiaomi SU7’s energy consumption performance is also very good; you can take a closer look. The fact that its test results are weaker than Tesla’s is partly due to objective reasons: the Xiaomi SU7 is a C-segment car, larger and with higher specifications, making it heavier and naturally increasing energy consumption. Of course, we will continue to learn from Tesla and further optimize its energy consumption performance!” Lei Jun wrote in a post on Weibo.
-->Lei Jun has repeatedly described Tesla as the global benchmark for EV efficiency, previously stating that Xiaomi may require three to five years to match its leadership. He has also been very supportive of FSD, even testing the system in the United States.
Elon Musk
Elon Musk reveals what will make Optimus’ ridiculous production targets feasible
Musk recent post suggests that Tesla has a plan to attain Optimus’ production goals.
Elon Musk subtly teased Tesla’s strategy to achieve Optimus’ insane production volume targets. The CEO has shared his predictions about Optimus’ volume, and they are so ambitious that one would mistake them for science fiction.
Musk’s recent post on X, however, suggests that Tesla has a plan to attain Optimus’ production goals.
The highest volume product
Elon Musk has been pretty clear about the idea of Optimus being Tesla’s highest-volume product. During the Tesla 2025 Annual Shareholder Meeting, Musk stated that the humanoid robot will see “the fastest production ramp of any product of any large complex manufactured product ever,” starting with a one-million-per-year line at the Fremont Factory.
Following this, Musk stated that Giga Texas will receive a 10 million-per-year unit Optimus line. But even at this level, the Optimus ramp is just beginning, as the production of the humanoid robot will only accelerate from there. At some point, the CEO stated that a Mars location could even have a 100 million-unit-per-year production line, resulting in up to a billion Optimus robots being produced per year.
Self-replication is key
During the weekend, Musk posted a short message that hinted at Tesla’s Optimus strategy. “Optimus will be the Von Neumann probe,” the CEO wrote in his post. This short comment suggests that Tesla will not be relying on traditional production systems to make Optimus. The company probably won’t even hire humans to produce the humanoid robot at one point. Instead, Optimus robots could simply produce other Optimus robots, allowing them to self-replicate.
-->The Von Neumann is a hypothetical self-replicating spacecraft proposed by the mathematician and physicist John von Neumann in the 1940s–1950s. The hypothetical machine in the concept would be able to travel to a new star system or location, land, mine, and extract raw materials from planets, asteroids, and moons as needed, use those materials to manufacture copies of itself, and launch the new copies toward other star systems.
If Optimus could pull off this ambitious target, the humanoid robot would indeed be the highest volume product ever created. It could, as Musk predicted, really change the world.
Tesla is improving Giga Berlin’s free “Giga Train” service for employees
Tesla Model 3 and Model Y dominate China’s real-world efficiency tests
