Tesla confirms plan to use own inverters for SolarCity installs

Facebook
Twitter
LinkedIn
Reddit
Email
Tesla will develop its own power electronics to tie together its PV, storage and electric mobility offerings. Source: Tesla.

Tesla will make its own inverters for use with SolarCity PV installs and its own energy storage products, according to its chairman and CEO, Elon Musk.

A US$2.6 billion acquisition of SolarCity, the largest residential solar installer in the US, has been finalised and will now be put to shareholders.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

Tesla, which recently shifted its mission statement’s focus from sustainable transport to sustainable energy, will look to develop the power electronics required to unite its storage, mobility and solar offering.

Responding to a question from an analyst during the company’s quarterly results call, Musk said:

“…There's no question Tesla's going to do integrated inverter. It's the logical thing to do. I think we've got the most advanced inverter engineering team in the world, and so it makes sense to, just as we do the inverters on vehicles, to do it with solar as well and have it in a very tight package at a cents per Watt level that is, I think, probably twice as good as anyone else. I think maybe better than that.”

The SolarCity deal has led many to forensically examine the synergies between the two companies and the opportunities. Musk described the inverter play as an “obvious move” adding that most people didn’t know what an inverter was.

“…If you place yourself in the consumer's shoes, [they] just want it to work. [They] don't want to know how it works. [They] don't care about the details. It's just got to work reliably, look good, not take up a tonne of space [and] the buying process has got be easy. You can check up on it with the app on your phones. There's only one phone app. You want it to be easy. You want it to just work. You want it to be affordable. You want it to look good. So, that's what we're going to do.”

Several manufacturers currently make inverters for the Tesla Powerwall including Fronius, SMA and SolarEdge.

SolarCity is also understood to be SolarEdge’s largest customer.

SolarEdge’s last quarterly results (Q1, 2016) stated that for the year ended 30 June, 2015, one major customer accounted for 24.6% of its consolidated revenues. In the three months ended 31 March 2016, two major customers accounted for 26.7% of its consolidated revenues.

Transcript of conference call provided by Seeking Alpha.

13 October 2026
San Francisco Bay Area, USA
PV Tech has been running an annual PV CellTech Conference since 2016. PV CellTech USA, on 13-14 October 2026 is our fourth PV CellTech conference dedicated to solar manufacturing in the USA. From polysilicon, wafers, ingots, cells and modules, to critical component suppliers including glass and frames, the event connects every stage of the value chain under one roof. PV CellTech USA also brings together investors, innovators, manufacturers and industry stakeholders to collaborate and strengthen domestic solar manufacturing across the United States.

Read Next

Premium
August 7, 2026
PV Tech Premium spoke with several industry analysts about the FCC inverter ban and how it will impact the US solar industry.
Premium
August 7, 2026
Wood Mackenzie’s Joseph Shangraw discusses the challenges facing the US plug-in solar market and the pathway to wider adoption.
August 7, 2026
The US introduced a 15% tariff on imports of products using polysilicon and set minimum prices for polysilicon and its derivatives.
August 7, 2026
Solar module manufacturer Heliene has laid off 93 employees at its Mountain Iron solar module assembly plant in the US state of Minnesota.
August 7, 2026
Array Technologies reported revenue of US$342.1 million, gross margin of 29.1% and adjusted gross margin of 30.8% for Q2 2026.
August 6, 2026
Clearway Energy generated and sold 3,585GWh of solar power in the second quarter of 2026, up from 2,800GWh in Q2 2025.

Upcoming Events

Solar Media Events
October 13, 2026
San Francisco Bay Area, USA
Solar Media Events
November 3, 2026
Málaga, Spain
Solar Media Events
November 24, 2026
Warsaw, Poland
Solar Media Events
February 2, 2027
London, UK
Solar Media Events
April 20, 2027
Istanbul, Türkiye