Tesla low-cost solar strategy paying dividends as installs rebound

Facebook
Twitter
LinkedIn
Reddit
Email
Musk is backing the Solar Roof product (pictured) for a solid 2021 performance. Image: Tesla.

Tesla has said its strategy to deliver the lowest-cost solar rooftop installations in the US is paying off after it witnessed a doubling of installs in Q3 2020.

Reporting its Q3 performance late yesterday, Tesla confirmed that it had installed 57MW of solar rooftops in the three months ended 30 September 2020, more than double the 27MW it installed in Q2 2020. Quarterly installs were also up 33% year-on-year.

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

The rebound will come as solace for Tesla after Q2 2020 solar installs dipped to the company’s lowest on record.

Earlier this year Tesla said it would offer the lowest cost solar installation on the US market at US$1.49 per watt. On an earnings call yesterday RJ Johnson, Tesla’s newly appointed energy business lead, said it had managed to do so by leveraging the company’s existing EV ordering infrastructure for its solar business. This has allowed the company to “substantially reduce” its soft costs, keeping its fixed costs relatively flat against an uptick in volume.

Tesla is now looking to roll this out across the rest of the energy business.

While it gave no precise figures for installations – a common trend within its results – the company did note a sequential trebling of installs of its Solar Roof product in Q3 2020, with founder Elon Musk describing it as a “killer product”.

“This will become obvious next year,” Musk said.

The company is now working to accelerate its onboarding of installers who are trained to install the product, described as the biggest hurdle to greater adoption of Solar Roof in the US.

Tesla also noted a significant uptick in energy storage installations, which reached 759MWh in Q3 2020. This was up 81% sequentially and 59% year-on-year, with Tesla indicating it had more demand than supply for energy storage throughout 2021.

Late last month Tesla hosted its Battery Day where it detailed plans to reduce manufacturing costs for energy storage through various means. It expects the changes to be transformational for Tesla’s energy business as a whole, and Musk continues to back the division to be just as big, if not larger than its automotive arm in the future.

Sister publication Energy-Storage.news provided an exhaustive analysis of Tesla’s Battery Day, as well as expert reaction from both a business and technological standpoint.

Total energy generation and storage revenue for Q3 2020 stood at US$579 million, up 44% year-on-year.

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.
2 February 2027
London, UK
Returning in 2027 for its 14th edition, Solar & Storage Finance Europe will bring together the brightest minds representing funds, banks, developers, utilities, government and industry across Europe and the UK on a programme that is solutions-focused from top to tail. The event is designed to enable leaders at the forefront of solar and storage investment and deployment in Europe to scale, learn and land themselves industry defining partnerships.

Read Next

Premium
August 14, 2026
PV Talk: 'There’s a lot of good news here,' Hasan Nazar, head of policy at Crux, tells PV Tech Premium of the US solar policy landscape.
August 14, 2026
IPP Recurrent Energy has secured US$695 million in financing to support a 330MW solar PV project in California.
August 14, 2026
German solar inverter producer SMA Solar increased its sales and earnings in the first half of 2026 (H1), returning to profit compared with the same period last year.
August 14, 2026
T1 Energy reported US$250.1 million in Q2 2026 sales as construction of its 2.1GW G2_Austin solar cell factory progressed.
August 14, 2026
Foreign Entity of Concern rules create a multitude of new risks for US solar developers, some less visible than others. Intertek CEA’s Jordan Wilson explores the key steps towards minimising FEOC exposure in PV module purchase agreements.
August 13, 2026
Comstock has advanced its industry-scale PV recycling line, while Florida-based OnePlanet has launched its 'PRISM' system to recover valuable materials from end-of-life solar modules.

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