Sunrun raises 2021 guidance after Q1 installs break seasonal records

Facebook
Twitter
LinkedIn
Reddit
Email
Sunrun also backed its market-leader position to help offset any supply chain constraints. Image: Sunrun.

Sunrun has increased its guidance for 2021 after a first quarter performance which has put the company on track to record its best ever year, CEO Lynn Jurich said.

Reporting Q1 2021 performance late yesterday, Sunrun revealed that it installed 167.6MW of rooftop solar in the three-month period ended 31 March 2021, a 73% increase on the 97MW it installed in Q1 2020. Pro-forma to the addition of Vivint Solar, installed capacity was up 9% year-on-year for the quarter.

This article requires Premium SubscriptionBasic (FREE) Subscription

Unlock unlimited access for 12 whole months of distinctive global analysis

Photovoltaics International is now included.

  • Regular insight and analysis of the industry’s biggest developments
  • In-depth interviews with the industry’s leading figures
  • Unlimited digital access to the PV Tech Power journal catalogue
  • Unlimited digital access to the Photovoltaics International journal catalogue
  • Access to more than 1,000 technical papers
  • Discounts on Solar Media’s portfolio of events, in-person and virtual

Or continue reading this article for free

The performance is only 2.3% shy of the record 171.6MW Sunrun installed in Q4 2021, regardless of any seasonality that would otherwise drag on installs in the first quarter. The company’s direct-to-home sales channel, channel partner business and home builder segment all reported all-time record volumes in Q1 2021.

Sunrun welcomed around 23,500 new customers during the quarter – around the same number of customers captured in Q4 2020 – taking the installer’s total cumulative customer base to around 573,600 and representative of year-on-year growth of 18%.

Revenue from solar energy systems and products in the quarter stood at US$160.2 million, a marginal increase on the US$156 million recorded in Q4 2020 but up 44% on the revenue recorded in corresponding quarter a year ago.

Tom vonReichbauer, CFO at Sunrun, said the momentum the company had generated in Q4 2020 had continued into 2021, recording seasonal volume records while contending with the ongoing integration of Vivint Solar, which it acquired last year. Sunrun also reiterated that it expects to realise cost synergies of around US$120 million relating to its acquisition of Vivint Solar by the end of the year.

There was also good news for Sunrun’s energy storage offering Brightbox. Cumulative installations passed the 20,000 mark during the quarter and attachment rates increased again in Q1 to a new record level, the company said, with Sunrun expecting Brightbox installations to double this year. Battery installations could have been even greater, the firm’s co-founder and executive chairman Ed Fenster said, were it not for “tightness” in the supply chain.

The strong performance has led Sunrun to upgrade its guidance for the year and the company expects its growth rate to stand between 25 – 30%, an increase on the prior 2021 growth guidance of between 20 – 25%. Furthermore, vonReichbauer told analysts yesterday that the company expects to record sequential quarterly growth in solar energy capacity installed in Q2 “well above 10%”.

The performance cements Sunrun’s status as the leading residential solar installer in the US, a position which the company told analysts yesterday would stand it in good stead to contend with any potential supply chain constraints later in the year.

While PV module prices are set to rise on the back of ongoing polysilicon supply constraints, solar inverters are being beset by a semiconductor shortage which is constraining manufacturing output. Late last month microinverter supplier Enphase Energy noted that demand for its products far outstripped supply as it rushed to source new suppliers of two particular semiconductor chips used in its product range.

On a conference call with analysts yesterday, vonReichbauer said that Sunrun considered itself to be “well insulated” to the emerging situation in the supply chain, noting that its position as the market leader in the US meant it had a “pretty important customer position” with manufacturers. Additionally the company’s supply contracts have penalties for non-delivery of orders, while Sunrun also took the decision to increase its inventory levels in response to the situation.

17 June 2025
Napa, USA
PV Tech has been running PV ModuleTech Conferences since 2017. PV ModuleTech USA, on 17-18 June 2025, will be our fourth PV ModulelTech conference dedicated to the U.S. utility scale solar sector. The event will gather the key stakeholders from solar developers, solar asset owners and investors, PV manufacturing, policy-making and and all interested downstream channels and third-party entities. The goal is simple: to map out the PV module supply channels to the U.S. out to 2026 and beyond.

Read Next

Premium
April 8, 2025
"With the advent of AI, we’re able to take that 15-minute turnaround, at best, and take it down to 30 seconds," claims Sunnova's Jake Wachman.
Premium
March 12, 2025
PV Talk: “It then has gone to 1,500V and we’re on the precipice of another change," ABB's Brian Nelson tells PV Tech Premium.
February 28, 2025
As storage capacity installation grew in double digits during Q4 2024, added solar PV grew by 6% year-on-year to 242MW in Q4 2024.
February 24, 2025
The US added a record 49GW of new solar capacity in 2024, according to figures from the BCSE and Bloomberg New Energy Finance.
Premium
February 11, 2025
PV Tech Premium spoke with Alexia Ruvoletto, former head of the Solar Stewardship Initiative, about its supply traceability standard.
February 11, 2025
The US solar industry was previously sanguine about Trump's initial tariffs, though the impacts of these metal tariffs are unclear.

Subscribe to Newsletter

Upcoming Events

Media Partners, Solar Media Events
April 23, 2025
Fortaleza, Brazil
Solar Media Events
April 29, 2025
Dallas, Texas
Media Partners, Solar Media Events
May 7, 2025
Munich, Germany
Solar Media Events
May 21, 2025
London, UK
Solar Media Events
June 17, 2025
Napa, USA