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Could you quickly explain how geothermal energy works, and where it is particularly useful?

Geothermal heating and cooling is done by using a heat pump to move heat between the ground and a home or building. The term ‘heat pump’ may be unfamiliar, but heat pumps are actually ubiquitous in modern life: refrigerators are heat pumps, as are air conditioners. Both refrigerators and air conditioners use electricity to move heat from one place to another: in this case, from the inside (of the fridge or building) to the outside.

Geothermal heat pumps are similar, but instead of only moving heat in one direction, they are bidirectional. This allows them to both heat buildings and cool them. And instead of moving heat from the building to the outside air, like an air conditioner does, they move heat between the building and the ground.

This matters because heating your home is most urgent and essential when it’s very cold out, which is precisely when there is the least amount of heat in the outside air. And cooling your home is most urgent and essential when it’s very hot out, exactly when it would be most difficult to reject heat from your home into the outside air. This is why air conditioners are so difficult for the electricity grid: they operate least efficiently exactly when everyone uses them most, on the hottest days of the year.

Geothermal heat pumps sidestep this problem by exchanging heat with the ground instead of the outside air. The ground maintains a mild temperature year round (which is the average air temperature over the course of the year in that location). Because of this, even on the hottest or coldest days, geothermal is still extremely efficient and effective.

Geothermal heating and cooling tends to work best in places where it gets cold in the winter and hot in the summer. This is because these climates require a lot of heating and cooling, and it’s in these places that geothermal has the most advantage over air source heat pumps, which exchange heat with the air outside (air source heat pumps are essentially air conditioners that can run in reverse to do both heating and cooling.)

Dandelion geothermal

You have a cost example between oil, natural gas, and propane on your page, s0 how do you think these costs are going to develop the next 5 years?

In the Wall Street Journal last week there was an article about options traders betting on a return to $100 oil. I can’t predict oil prices over the next five years, but oil prices have been relatively low since I co-founded Dandelion in 2017, so I bet oil prices are more likely to rise over the next five years than they are to fall. In terms of how geothermal costs are going to develop in the next 5 years, I think 10% lower YOY is a good estimate.

What different forms of geothermal are there, since we see geothermal in the context of residential housing as well as in big commercial plants? 

Geothermal can refer to harnessing energy from the earth’s core, the type Iceland is famous for, but this is not what Dandelion’s geothermal heat pumps do. The heat that geothermal heat pumps collect from the relatively shallow surface is actually stored sunlight, not energy from the earth’s core, so despite the name ‘geothermal,’ geothermal heat pumps are actually using stored solar energy.

Dandelion geothermal

How did you learn about the potential of geothermal, and what convinced you to co-found the company?

I learned about the potential of geothermal heating and cooling from a colleague at Google, Bob Wyman (I started Dandelion as a project at Alphabet’s X before spinning it out as a startup). He made a compelling case that widespread geothermal heating and cooling was the most important climate intervention we could take in the US, but that, despite that, geothermal heat pumps were getting approximately no attention.

It was an audacious claim, but he had detailed data and logic backing it up, so his argument captivated me and motivated me to learn more.

That interest developed into co-founding Dandelion when I became convinced that, 1) Geothermal heat pumps have a critical role to play in offsetting carbon emissions from buildings; 2) They align the customer’s financial interests with society’s best interests; 3) The market potential is gigantic; and 4) The barriers that have prevented geothermal heating and cooling from scaling in the past are addressable.

Is there a certain story behind the name Dandelion?

Dandelions have a taproot that can grow as deep as ten feet into the ground. Even if you cut the flower off at the surface, the taproot can regenerate a new one. Similarly, geothermal ground loops extend far into the ground and they last for as long as the home itself. So after 20 years, when it’s time for the homeowner to replace their heat pump, they can just swap it out with another one and connect it with those same ground loops.

There is something very satisfying about the fact that each time we install ground loops in a yard, that home will have access to geothermal heating and cooling forever. Or at least, as long as that home exists.

If you look back to the investment the company received, did the investment landscape and interest in geothermal change visibly in the last few years?

The investment landscape for clean tech has changed dramatically since I co-founded Dandelion in 2017. In 2017, very few investors and even fewer mainstream VC investors were interested in clean tech. Now it seems like there is widespread interest. This makes sense to me because investors have seen that clean tech companies like Tesla can offer massive returns, and the political and business trends suggest clean tech will be a huge part of the future.

Could our readers get out and buy geothermal right away, and in which states (if we’re talking about the US) would it make the most sense (on average)?

Geothermal makes the most financial sense for homeowners who are paying a lot for heating and cooling today. Typically, these are homeowners in cold climate states, especially those using heating fuels like fuel oil or propane.

Some states and utilities also offer generous incentives for geothermal heating, such as NY, CT, MA, SC, and VT, among others.

Most readers will likely be able to find a company that can install geothermal heating and cooling in their area, but the cost may be high. Dandelion exists because we see a need to make geothermal heat pumps more affordable and the process of getting them easier for homeowners, and we look forward to being able to extend that work to more and more places over time (today Dandelion works in NY, CT, and VT).

What is your main competition, and how is Dandelion different?

Our primary competition today is inertia, which is to say conventional heating and cooling options. When it’s time for homeowners to replace their furnace or boiler, many homeowners seek the recommendation of their contractor, who is likely going to recommend the products and brands he or she is most familiar with (typically furnaces and boilers).

Our challenge is to raise awareness of geothermal heating and cooling. We’re different from other geothermal heating and cooling providers because we do residential retrofit at scale. This has let us leverage the fact that we’re serving hundreds of homeowners in a given area to get all of our homeowners better pricing on their equipment and the installation. We’ve also focused on streamlining the customer experience to make the experience of getting geothermal simple and straightforward.

If you could found the company over again, what things would you do differently today?

So many things! Hard to overstate how many things! But here are a few:

  1. I would have looked for mentorship even earlier. I was incredibly fortunate to get connected with Dan Yates, the cofounder and CEO of Opower, about a year into the company, and he had a transformative impact on Dandelion and on me as a leader. If I could have learned even a fraction of what he taught me sooner, I would have saved myself and others a lot of stress during those early years!
  2. I wouldn’t have assumed partners, subcontractors, or anyone else except Dandelion would solve the problems we needed to solve to make the business work. When I started the company, we had a model that assumed local HVAC contractors would sell and install geothermal for customers on behalf of Dandelion. It didn’t take us very long to realize that given these activities were so central to our mission of making geothermal heating simple and affordable, we couldn’t outsource them to others.
  3. I would have been less tolerant of underperformers. I think this is a hard lesson for many new managers, but at the beginning of Dandelion when I was still relatively new to managing a team, I spent an outsized portion of my time and energy dealing with the most difficult employees. With many hard lessons behind me now, I invest the bulk of my time with the highest performing employees, because they are the ones that will build the business and carry us furthest toward our mission.

What other cleantech and general development do you find particularly interesting or fascinating? What would you love to get involved in more but don’t have the time?

I’m an advisor to a startup called Noon that’s inventing a way to use cheap, abundant materials to store a lot of energy at a very low cost. While clean tech history is littered with battery failures, I find Noon exceptionally compelling because it’s one of those bets that could change everything if it works.

If you could suggest a particular law (cleantech or otherwise), what would you suggest?

An extension of the Investment Tax Credit for at least a decade at 30%. This would go such a long way in allowing critical clean technologies like geothermal heat pumps to scale.

Are there some companies you’d really like to work with, but haven’t quite gotten through to yet? Maybe some employees or shareholders are reading this and can reach out! 🙂

We are working with quite a few utility companies across NY, CT, and now VT to offer geothermal incentives for homeowners to transition from furnaces and boilers to heat pumps. These programs have been very successful: they’re good for utility companies because homeowners who use geothermal will typically use more electricity, especially on off-peak times, like night and winter. Geothermal heat pumps also dramatically reduce summer peaks. It’s good for homeowners because it makes geothermal heating and cooling more affordable. We are always looking for additional utility companies to work with, to make geothermal heating and cooling available in more states.

Are you hopeful for humanity, and what would need to happen to make you more hopeful?

I am very hopeful. We have very real challenges to solve, but for the average person, life on this planet has never been better than it is right now. Life expectancy has increased more since 1900 than it had in the preceding 8000 years, and the quality of our lives has astronomically improved with electricity, refrigeration, antibiotics, sanitation, genetically modified crops, the internet, and so many other world-changing innovations that are only a hundred or so years old.

I think it’s likely humanity will continue its pattern of successfully innovating our way out of our biggest challenges.

All images courtesy Dandelion

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Tenways AGO T mid-drive e-bike at $2,399 low, DJI Power 2000 station hits new $999 low, EcoFlow 48-hour flash sale, tools, more

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51 mins ago

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July 15, 2025

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Tenways AGO T mid-drive e-bike at ,399 low, DJI Power 2000 station hits new 9 low, EcoFlow 48-hour flash sale, tools, more

Today’s Green Deals are headlined by the low price on Tenways’ AGO T Premium Mid-Drive Urban e-bike that comes with a free front carrier ($50 value) for $2,399, among other models seeing discounts during this sale. We also spotted DJI’s recently released Power 2000 Portable Power Station hitting a new $999 low, as well as EcoFlow’s latest four 48-hour flash sale offers that include two power stations, a WAVE 3 bundle, and a DELTA Pro 3 expansion battery at up to 53% off starting from $1,199. From there, we have Greenworks’ 40V 20-inch Cordless Pole Hedge Trimmer kit at its $114 low alongside the Worx Aerocart 8-in-1 Yard Cart down at $169.50. Plus, there’s all the hangover Prime Day savings in our Prime Day Green Deals hub at the bottom of the page, as well as yesterday’s EcoFlow phase 3 Prime Day Sale, and more.

Head below for other New Green Deals we’ve found today and, of course, Electrek’s best EV buying and leasing deals. Also, check out the new Electrek Tesla Shop for the best deals on Tesla accessories.

Tenways AGO T mid-drive e-bike with a 62-mile range and $50 in free gear at $2,399 low in latest sale

Tenways has launched a new Summer Sale that is taking up to $600 off its e-bike lineup while also offering an additional $300 savings when buying two models together. Among the offers this time, we’re seeing the lowest price to date continuing on the AGO T Premium Mid-Drive Urban e-bike for $2,399 shipped while also getting a free front carrier valued at $50. Normally, this higher-end model would cost you $2,699 at full price, which we saw brought down to the $2,399 low for the first time during the brand’s July 4th Sale. Now you’re getting another chance at that $300 markdown here while the savings last, dropping the costs back to the best price we have tracked. As always, there is an extra $150 savings available for medical providers, first responders, military personnel, and teachers with verification through ID.me on any of the e-bikes’ landing pages.

Aside from Tenways’ new CARGO ONE e-bike that recently released, the AGO T Urban e-bike is the highest-end of the brand’s models, cruising into view with a Bafang M420 mid-drive motor coupled with a 504Wh battery to provide up to 62 miles of pedal-assisted travel at up to 20 MPH top speeds. It shouldn’t be surprising that this premium model also comes with a superior torque sensor to support its PAS capabilities, with the settings controlled via the TFT LCD color display screen.

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There’s plenty of high-quality features you’ll be getting here too, like a hydraulic front lockout fork, the hydraulic disc brakes, puncture-resistant tires with fenders over each, a Gates CDX carbon belt drive, an Enviolo stepless shifting hub, an integrated rear cargo rack, integrated front and rear lighting, a suspension seat post, and more. There are even connectivity options through its companion app, the standout of which is the ability to cast directions from your phone onto the bike’s display for more seamless navigation.

If you want to check out the full lineup of e-bike deals that we’re seeing in this current sale, be sure to check out our original coverage here.

DJI Power 2000 Portable power station

Score DJI’s latest Power 2000 2,048Wh LiFePO4 station with $900 savings at a new $999 low

By way of its official Amazon storefront, DJI is giving folks a lower-than-ever price on its new Power 2000 Portable Power Station at $999 shipped, after using the promo code DJIPOWER2000 at checkout. This model was just released at the top of the month, with it waiting no time before dropping from its original $1,899 price tag to $1,299, which held out all of last week until falling to $1,099, with the promo code taking things even further. You’re looking at a combined 47% markdown that gives you $900 off its tag, landing it at a new all-time low price. You can also alternatively pick up its Power 1000 predecessor at $549 shipped right now, after redeeming the on-page coupon.

If you want to learn more about this all-new backup power solution, be sure to check out our original coverage here.

EcoFlow DELTA Pro power station

EcoFlow flash sale takes up to 53% off two power station offers, a WAVE 3 bundle, and an extra battery starting from $1,199

As part of its ongoing Phase 3 Prime Day Sale, EcoFlow has launched the next 48-hour flash sale through July 16, with four units getting up to 53% discounts to some of the best prices we have tracked. Among the two power station deals, you’ll find the brand’s DELTA Pro Portable Power Station with a free protective bag at $1,749 shipped, with the extra savings unfortunately not applicable here. Priced at $3,699 in full, we regularly see it down between $1,799 and $1,999, especially at Amazon, where it’s currently sitting $50 higher in price. While we have seen it go as low as $1,694 in the past, you’re still looking at a larger-than-normal 53% markdown off the going rate, giving you $1,950 in savings and landing it $55 above the all-time low. Head below for more on this unit and the others we’re seeing included in this flash sale.

If you want to learn more about this power station or the other units included in this flash sale, be sure to check out our original coverage here.

Greenworks 40V 20-inch Cordless Pole Hedge Trimmer

Cover hedge jobs with this Greenworks 40V 20-inch pole trimmer at $114 low

Amazon is offering the Greenworks 40V 20-inch Cordless Pole Hedge Trimmer for $113.99 shipped. Coming down from its usual $170 pricing, where the brand’s direct website currently has it listed, we only saw discounts in 2025 dropping costs to $140 until this past week, when Prime Day brought it lower than ever to the rate that is continuing into this week. You’re looking at a $56 markdown to the best price we have tracked and giving you the chance to save big while Prime Day benefits linger.

To learn more about this lawn care solution’s capabilities, be sure to check out our original coverage here.

Worx Aerocart 8-in-1 yard cart

Tackle yard work with 8-in-1 versatility using Worx’s transforming Aerocart at $169.50

Amazon is offering the Worx Aerocart 8-in-1 Yard Cart at $169.50 shipped, which comes in $0.50 under the current Best Buy Deals of the Day pricing. Usually going for $200 to $230 at full price, we’ve mainly seen it in 2025 keeping near $173, with it more recently keeping down between $169 and $170 at the lowest. While it’s fallen lower in the past, those rates haven’t reappeared this year at all, with today’s deal being a solid $60.50 markdown at the second-best price of the year – just $0.50 above the annual low.

If you want to learn more about this handy yard cart, be sure to check out our original coverage here.

Best Summer EV deals!

Best new Green Deals landing this week

The savings this week are also continuing to a collection of other markdowns. To the same tune as the offers above, these all help you take a more energy-conscious approach to your routine. Winter means you can lock in even better off-season price cuts on electric tools for the lawn while saving on EVs and tons of other gear.

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Range Rover’s first EV looks the part, but with a few surprises

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2 hours ago

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July 15, 2025

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Range Rover's first EV looks the part, but with a few surprises

Range-Rover-first-EV

Range Rover’s first electric SUV will finally arrive later this year. Ahead of its official launch, early reviews show the upcoming EV stays true to the Range Rover heritage, but there are a few things you should know.

Range Rover will launch its first EV later this year

Since launching its first vehicle 55 years ago, the Range Rover brand has become an iconic symbol of off-road capabilities, elegant design, and luxurious interiors.

With its first all-electric SUV due out later this year, Range Rover promises it will “refine and craft the epitome” of the luxury brand.

Although Range Rover is currently putting the electric SUV through “the most intensive testing” any of its vehicles has endured, Autocar got their hands on a prototype for an early review.

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The Range Rover Electric may look like the iconic SUV we’ve grown to love, but with an electric powertrain, it offers even more.

“A Range Rover more calm and assured, almost regardless of circumstance, than any in its 55-year lineage. Electrification yields a lot, but sacrifices little,” Matt Sanders, Autocar’s chief car tester, said after driving the prototype.

Range-Rover-first-EV
Range Rover Electric testing in Sweden (Source: JLR)

Based on the MLA platform, the electric SUV features JLR’s new in-house powertrain. The dual-motor setup packs a combined 542 hp and 627 lb-ft of torque.

The EV draws power from a massive 118 kWh battery, which is expected to deliver around 300 miles of real-world range. Sanders said he had about 160 miles of range remaining at half charge during the review.

Range-Rover-first-EV
Range Rover Electric SUV prototype testing (Source: JLR)

However, even JLR’s engineers admit that due to the SUV’s (not so) aerodynamic profile, 300 miles may be optimistic during longer-range highway driving. The engineers highlighted that the vehicle’s 800V architecture offers some of the fastest DC charging speeds on the market.

The electric SUV can also tow over 7,700 lbs (2.5 tons). Although this is less than the current Range Rover’s 3.5-ton towing capacity, it’s still on par with other luxury SUVs, such as the Mercedes G-Class.

Range-Rover-first-EV
Range Rover Electric prototype (Source: JLR)

To add more power, more motors, and bigger batteries would be required, according to Simon Fairbrother, Range Rover’s Chief Program Engineer.

Inside, the cabin is nearly identical to that of the current Range Rover SUV, featuring a plethora of digital screens and physical buttons in front of the driver. If anything, the only thing that could be changed is that the “Range Rover Electric deserves bigger heating and ventilation controls than other derivatives,” Sanders wrote.

Range-Rover-first-EV
Range Rover Electric prototype testing (Source: JLR)

JLR’s new in-house thermal management system (ThermAssist) is about 40% more efficient than the system of the Jaguar I-Pace, its first all-electric vehicle.

Range Rover’s first E will be offered in standard and long wheelbase variants. The extended wheelbase model will be about the same size as the outgoing Range Rover SUV, but it’s expected to still include enough second-row space to take it into “Bentley or Rolls-Royce territory for sheer lounging space.”

Range-Rover-first-logo-EV
JLR reveals new Range Rover logo (Source: JLR)

Since Autocar only drove the vehicle at speeds under 20 mph, we’ll have to wait to hear more about on- and off-road performance.

Sanders did mention that “the Range Rover Electric can simply ease itself up, down, over and around everything before it inspires incredible confidence in its capabilities” while driving through forest racks.

We will learn the prices closer to launch, but JLR is reportedly aiming for a price around the same as the V8 Autobiography, at just under £150,000 ($200,000).

Range Rover’s first EV has already secured over 61,000 clients on the waitlist ahead of its upcoming debut. JLR also revealed the luxury brand’s first logo, which we could see debut on the new electric SUV.

Source: Autocar

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Circle stock drops after House blocks key procedural vote on stablecoin legislation

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3 hours ago

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July 15, 2025

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Circle stock drops after House blocks key procedural vote on stablecoin legislation

Circle Internet Group Initial Public Offering at the New York Stock Exchange in New York City, U.S., June 5, 2025.

NYSE

Circle shares slid on Tuesday after the U.S. House of Representatives failed to clear a key procedural hurdle that would have teed up votes on long-awaited crypto-related bills.

The move dealt a major setback to the digital asset industry, which had framed this week as a turning point for regulatory clarity in Washington, D.C.

Circle, the stablecoin issuer that’s soared in value since its public market debut last month, fell about 5% after the vote. Crypto exchange Coinbase and bitcoin miner MARA Holdings both slipped about 2%.

Even after Tuesday’s drop, Circle shares are still up more than sixfold from their IPO price. The company is the issuer of USDC, the second-largest dollar-pegged stablecoin, with about 24% of the global market. Circle didn’t immediately respond to a request for comment.

The legislation, including the GENIUS Act, would mark the first time the U.S. sets federal rules for stablecoins, a $260 billion corner of the crypto market that underpins most digital asset trading. The bill establishes full-reserve requirements, mandates monthly audits, and creates a path for private companies to issue regulated digital dollars under the blessing of the U.S. government.

The GENIUS Act passed the Senate last month, a milestone for both the crypto industry and for President Donald Trump, who has pushed to align his administration with digital asset innovation. It also marked a win for the industry, which spent more than $245 million in the 2024 cycle to help elect what’s now seen as the most pro-crypto Congress in U.S. history.

Treasury Secretary Scott Bessent has said the market for U.S. stablecoins could grow eightfold to more than $2 trillion in the coming years if this bill is enacted. White House AI and crypto czar David Sacks had predicted it could unlock “trillions” of dollars in demand for U.S. Treasury notes virtually overnight.

The vote came just hours after Fairshake, the crypto industry’s most powerful PAC, disclosed $141 million in cash on hand as it fights for regulatory victories and backs pro-crypto candidates heading into the 2026 midterms. The committee didn’t provide a comment for this story.

House leadership is tentatively planning a second vote as early as Tuesday evening, though it’s unclear whether the rule or bill text will be modified to satisfy holdouts.

WATCH: Stablecoin showdown moves to the House after Senate clears crypto’s landmark bill

Stablecoin showdown moves to the House after Senate clears crypto’s landmark bill

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