New data suggests that the Tesla Powerwall 3 is significantly disrupting the US solar inverter market.
The home battery pack’s integrated inverter is changing the game.
Tesla acquired its solar business when it bought SolarCity in a controversial deal due to Musk being a large shareholder of both Tesla and SolarCity, and Musk’s cousin led the latter.
The automaker kept the SolarCity operations going for a few years. In fact, it continued until after Tesla shareholders sued Musk over the acquisition, and Musk defended himself by claiming that SolarCity had become an integral part of Tesla.
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Shortly after he won the lawsuit, Tesla virtually stopped all operations that came from its SolarCity acquisition, which primarily consisted of residential solar financing and installations.
Tesla even stopped reporting solar deployment. The company’s energy business now consists almost entirely of Powerwall and Megapack deployments.
However, the launch of the Powerwall 3 has indirectly brought Tesla back into the solar business, as the home battery pack features an inverter that works for both solar and storage applications.
EnergySage is a company that matches solar installers with potential buyers, and as a result, it has a wealth of interesting data about the solar industry in the US. Today, it released its Spring 2025 Marketplace report.
In the report, EnergySage revealed that Tesla became the second-most quoted inverter brand in the second half of last year:
Tesla became the most quoted battery brand in H2 2024, occupying 63% of Marketplace share nationwide. Because the Powerwall 3 includes an integrated inverter, Tesla also became the second-most quoted inverter brand. With batteries increasingly being added to solar systems—the national battery attachment rate jumped to 45% in H2 2024, an all-time high—Tesla’s growth was a key driver of the low storage and solar prices seen on EnergySage. In 2025, we are examining whether brand backlash and equipment shortages will affect Tesla’s Marketplace share.
This is also a byproduct of the increased popularity of energy storage systems when deploying new solar systems.
In big solar markets like California and Texas, the majority of residential solar quotes are attached to batteries, and Tesla is not the top quoted brand, thanks to Powerwall 3:
Powerwall was already the preferred home battery pack for many homeowners, and the fact that it now includes a solar inverter has made it even more attractive, as most home energy storage systems in the US are being deployed along with rooftop solar.
The Powerwall 3’s solar inverter integration is pushing solar plus storage costs down quite a bit.
The popularity of the Powerwall 3 has particularly hurt Enphase, a leader in solar inverter. It had 73% of the US market in 2022, and now it is down to 53%.
Despite Tesla driving prices down, Powerwall 3 is not the cheapest battery pack available. Panasonic and EG4 batteries were both priced lower on a per kWh basis than Tesla’s in the second half of 2024, but Tesla won on cost when also replacing the solar inverter.
If you’re interested in installing solar panels and/or batteries for your home, we recommend using EnergySage. You will be able to get quotes without any hassle and only talk to someone when you are ready to move forward. Within minutes, you can get on the path to producing your own power with solar and battery storage, including with Powerwall.
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Steer-by-wire is an automotive concept that has been around for a long time, but hasn’t yet reached mass adoption. The idea is to replace (or supplement) mechanical linkages between the steering wheel and the wheels with electronic actuators instead.
There are a number of potential benefits to this, like allowing more customizability or adaptability to a steering system, reducing mechanical complexity, or adding speed-sensitive variable steering ratios.
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Although there are also disadvantages, like a reduction in steering feel (although, since most cars are moving to electronic power steering, that was already gone anyway).
But few cars have implemented steer-by-wire systems, or at least not fully committed to them, given that mechanical steering racks are a relatively solved problem and the general inertia of the car industry which would rather stick with a solution they know than switch to something better (haven’t we here, at this EV publication, heard *that* one before…). There’s also the matter of regulations, which have often been written to require mechanical steering systems, and may need updating to allow for steer by wire.
But, steer by wire made it into mass production with the release of the Tesla Cybertruck. This was big news when Tesla committed to this – at the time, it was the only thing on the road to exclusively use a steer by wire system, though there are other cars with partial steer by wire (for example, mechanical front wheel steering, and steer by wire rear-wheel steering).
But it seems to have opened the floodgates, as a number of other companies are working on or have since released steer by wire systems (Lexus, for example).
And now, it looks like Rivian is one of those companies – though we don’t know if it’s for the front or rear. (Update: Well, now we know, it looks like they are at the very least developing a rear-wheel steering system, according to another job listing. Though the company might still be working on steer-by-wire for the whole vehicle, too)
So – we know they’re working on steer by wire, to some extent.
But a few other EVs, particularly large EVs like the Rivian R1 platform is, use steer by wire just for the rear wheels – for example the Hummer EV and Rolls-Royce Spectre. These systems are particularly helpful for giant vehicles, because it allows them to be more nimble and make turns that otherwise would require a lot more… negotiation in a giant land yacht.
So it’s possible that Rivian is only working on rear wheel steer by wire here, but we’d like to think there’s a chance it’s working on steer by wire for the full vehicle.
We also don’t know if this would show up on all of Rivian’s vehicles, or only on certain models – the R2 and R3 are in development, with R2 in pretty late stages, and the R1 just got a big refresh. But, perhaps even more interestingly (and very speculatively), VW has invested heavily in Rivian for technology help, so we wonder if we might end up seeing this in VW group vehicles, or Scout vehicles eventually…
The 30% federal solar tax credit is ending this year. If you’ve ever considered going solar, now’s the time to act. 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.
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Automakers are scrambling to push their EVs out the door before the $7,500 Federal tax incentive for EVs disappears — and BMW is no different, offering aggressive cash back, owner loyalty, and special financing rates on its just-released 2026 model year EVs.
BMW has a history of offering solid loyalty incentive programs on its EVs in early summer to clear the tail-end of the model year and make room for the incoming builds, but CarsDirect is reporting some unusual loyalty deals from the brand that seem to suggest BMW is keen to capitalize on a spike in EV sales ahead of the Federal tax incentive’s looming cancellation in September.
BMW dealers now have the choice of adding an additional $1,000 loyalty contribution on select 2026 EVs. The i5 and i7 are offered with $1,000 and $4,000 loyalty bonuses, respectively, meaning if you drive a BMW and your dealer opts to tack on the extra bonus, you could save $5,000 on a 2026 i7. These loyalty programs are good when buying or leasing.
There’s also a $1,000 conquest bonus available for drivers of eligible EVs and PHEVs from other brands. This program is stackable with other offers.
Like other EV brands offering huge lease incentives, BMW customers will see the largest rebates on new BMWs when leasing. Now through September 30th, 2026 BMW i5, i7, and iX models are available with a stout $9,900 lease credit, while the bigger BMW XM comes in with a slightly lower, but still substantial $7,500 lease incentive.
Big deals on big BMW i7 sedan
BMW i7, via BMW.
People who prefer to own their vehicles once the payments are up can still score a great deal on an objectively excellent 2026 BMW i7 luxo-cruiser, thanks to the previously mentioned loyalty bonus if they’re previous customers plus a $7,500 Loan Credit that anyone can get when financing their new i7 with the brand’s captive financing company. BMW Bank offers financing rates as low a 3.99% for up to 60 months on the 2026 i5 and i7 sedans, as well as the iX crossover, as well as 4.99% APR 60-month rate on the high-performance XM plug-in hybrid.
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.
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This week, industrial real estate giant Prologis flipped the switch on a rooftop solar project at one of its Franklin Park, Illinois warehouses — the first of 45 such rooftop installations the company plans to deploy in the next two years. Once finished, Prologis’ community solar project will generate up to 82 MW of clean energy!
Co-developed with Illinois utility ComEd and SunVest Solar, the independent power producer, the new rooftop community solar installation in Franklin Park sits atop a 195,000 sq. ft. Prologis logistics center serving a number of local and regional businesses.
Prologis will own and operate the 1.56 MW community solar project, and the energy it generates will serve mostly residential customers, with the minority of the community solar credits created benefiting local businesses.
“We’re proud to join ComEd to officially launch this project, the first of many community solar projects that our energy team is deploying across our Illinois rooftops,” explains Carter Andrus, Prologis’ Chief Operating Officer. “Illinois is one of the fastest-growing solar markets in the country, and we’re excited to help lead its momentum. For us, this is about more than solar panels … it’s about using our scale to make a real difference in the communities where we operate and bring the benefits of clean energy to more people across Illinois.”
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Collaborative effort
ComEd, Prologis, and Sunvest executives; via ComEd.
Prologis is deeply invested in a number of distributer energy resources (DER), including rooftop solar, battery energy storage, and OnDemand Power, a scalable, portable microgrid and power management solution (read: software) designed to provide resilient, backup, and dispatchable energy where and when it is needed across the company’s global portfolio.
With nearly 800 MWs of rooftop solar and energy storage already deployed and 82 more coming from Northern Illinois alone, Prologis is on track to reach its goal of 1 gigawatt by end of 2025. (!)
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.
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