Tesla Powerwall 3 is disrupting the solar inverter market
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.
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.
However, it’s not all good news from Tesla. EnergySage also recently reported an increase in customers requesting alternatives to Powerwalls in 2025, partly due to Elon Musk’s increasing controversy.
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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The State of California is moving to ban the sale of Tesla cars amid claims that the company and its CEO, Elon Musk, have misled buyers about the self-driving capabilities of their cars. We’ve also got market-leading news out of Vietnam and a pricey, pricey lesson for one VW ID.Buzz buyer on today’s lesson-learning episode of Quick Charge!
We also ask what this might mean for the recent Uber/Lucid autonomous taxi tie-up and go through a full rundown of the fastest depreciating EVs on the market (and yes, there are four Tesla models in the top 10 … because the Cybertruck was too new to qualify).
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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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Sunrun is putting tens of thousands of home batteries to work in Puerto Rico as the island’s electric grid faces a summer of high temperatures and energy shortfalls.
The company says it’s now dispatching energy from over 37,000 residential batteries to help grid operator LUMA keep the lights on. That stored power is being used to prevent rolling blackouts when demand spikes and centralized power plants can’t keep up.
Sunrun’s emergency power contribution has grown more than tenfold since last summer. LUMA expects more than 75 energy shortfall events between now and October, with each dispatch sending electricity to the grid for four consecutive hours. During several recent evenings, Sunrun and other virtual power plant (VPP) operators provided enough energy to offset a 50-megawatt generation gap, LUMA said.
Sunrun CEO Mary Powell said Puerto Rico’s aging infrastructure and intense weather patterns make home battery support increasingly critical:
It’s going to be a very difficult summer, which is why Sunrun has ramped up our dispatch capabilities, using tens of thousands of home batteries to support the grid and people of Puerto Rico.
She added that distributed power plants like Sunrun’s serve the same role as natural gas peaker plants – offering fast, reliable power during high-demand moments – but with clean energy.
Sunrun customers enrolled in the VPP will get paid too. Each participating battery earns about $200 minimum for the season, and customers who allow more of their stored energy to go to the grid earn even more. Sunrun also earns revenue for operating the VPP.
Read more: The US’s largest virtual power plant now runs on 75,000 home batteries
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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Volkswagen is advertising ID.4 leases starting at just $99 a month. It’s hard to find any car lease these days for under $100 a month, but for $45,000 electric SUV, it’s almost unheard of.
Volkswagen offers ID.4 leases as low as $99 a month
The Volkswagen ID.4 was the third top-selling EV in the US in January after the 2025 model year went back on sale.
Volkswagen’s electric SUV starts at $45,095 with an EPA-estimated driving range of 291 miles. It’s available in five different trims: Pro, AWD Pro, Pro S, AWD Pro S, and AWD Pro S Plus.
The base 2025 VW ID.4 Pro RWD is equipped with 282 hp from a single rear electric motor. Inside, it features a 12.9″ infotainment system with Android Auto and Apple CarPlay support, heated front seats, dual-zone climate control, and Volkswagen’s new ID.Cockpit digital instrument display.
Upgrading to the AWD version will gain a tow hitch and an additional 53 hp, for a combined maximum of 335 hp. The added power comes at the cost of some range, with an EPA-estimated range of 263 miles.
Volkswagen was already offering 2025 ID.4 leases as low as $129 a month, but some dealers are listing it for even less this month.
A California dealership, Volkswagen of Garden Grove, has the 2025 ID.4 Pro RWD listed for lease at just $99 per month. The offer is for 24 months with $2,995 down. According to the dealer, the offer includes a $5,000 cash back bonus, good on a new ID.4 purchase or lease.
We thought the 2025 Hyundai IONIQ 5 was a good deal with leases starting at just $179 per month, but for $99, now that’s a steal.
Looking for deals on the Volkswagen ID.4 near you? You can use our link to find and view offers on the 2025 Volkswagen ID.4 in your area (via a trusted affiliate link)
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