Tesla increased solar deployments 11% in Q2 but solar roof system production ramp lags

Facebook
Twitter
LinkedIn
Reddit
Email
Energy generation and storage revenue in the reporting period was US$374.4 million, a 9% decline from the first quarter of 2018. Image: Tesla

Tesla stopped the steep declines in residential solar installations in the second quarter of 2018, reporting deployments of 84MW, up from a low-point of 76MW in the previous quarter, an 11% increase. 

The company expects relatively stable quarterly deployments as sales are centred through its Telsa vehicle showrooms but continues to believe that with growing vehicle customers it expects at some point an inflection point for rapid retrofit residential solar systems.

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

Tesla stopped the steep declines in residential solar installations in the second quarter of 2018, reporting deployments of 84MW, up from a low-point of 76MW in the previous quarter, an 11% increase.

Continuing to be an extended product launch is Tesla’s complete solar roof tile system, which again was said to be going through evaluation and design tweaks on limited customer deployments. Installation learning cycles need to be implemented back in production at the Gigafactory 2 in Buffalo, New York to enable further production process simplification for high manufacturing assembly automation, which has yet to be implemented, which will require an unspecified capital expenditure. 

Tesla does not expect to actually ramp production of its complete roofing system until near the end of 2018. 

However, energy storage systems reached a 1GWh deployment milestone in May, which has taken five years.  

In the second quarter of 2018, Tesla deployed a total of 203MWh of energy storage systems, a 106% increase from the prior year period and a 450% increase in the first half of 2018, compared to the prior year period. 

Energy generation and storage revenue in the reporting period was US$374.4 million, a 9% decline from the first quarter of 2018, due to the revenue recognition on the completion of the large 129MWh deployment in South Australia in the first quarter of 2018, according to the company. 

7 October 2025
San Francisco Bay Area, USA
PV Tech has been running an annual PV CellTech Conference since 2016. PV CellTech USA, on 7-8 October 2025 is our third PV CellTech conference dedicated to the U.S. manufacturing sector. The events in 2023 and 2024 were a sell out success and 2025 will once again gather the key stakeholders from PV manufacturing, equipment/materials, policy-making and strategy, capital equipment investment and all interested downstream channels and third-party entities. The goal is simple: to map out PV manufacturing in the U.S. out to 2030 and beyond.
21 October 2025
New York, USA
Returning for its 12th edition, Solar and Storage Finance USA Summit remains the annual event where decision-makers at the forefront of solar and storage projects across the United States and capital converge. Featuring the most active solar and storage transactors, join us for a packed two-days of deal-making, learning and networking.
16 June 2026
Napa, USA
PV Tech has been running PV ModuleTech Conferences since 2017. PV ModuleTech USA, on 16-17 June 2026, will be our fifth 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 2027 and beyond.

Read Next

August 15, 2025
Australia’s transmission line infrastructure project HumeLink is now open for connection to solar, wind, and energy storage facilities.
August 15, 2025
US solar manufacturer T1 Energy has signed a deal to buy US-made polysilicon and wafers from ceramics and glass producer Corning.
August 15, 2025
Gentari Renewables has broken ground on its 243MWp Maryvale solar-plus-storage site in New South Wales, Australia.
Premium
August 14, 2025
SolMicroGrid has launched an Energy-as-a-Service (EaaS) partner program for project developers, engineering, procurement, and construction (EPC) companies and original equipment manufacturers (OEMs).
August 14, 2025
OX2 has received government approval to build a 135MW solar-plus-storage site at a decommissioned coal mine site in NSW, Australia.
August 13, 2025
A new MIT study has shown how many of the dramatic reductions in PV costs in the past 50 years were the result of innovations originating outside the solar industry.

Subscribe to Newsletter

Upcoming Events

Solar Media Events
September 16, 2025
Athens, Greece
Solar Media Events
September 30, 2025
Seattle, USA
Solar Media Events
October 1, 2025
London, UK
Solar Media Events
October 2, 2025
London,UK
Solar Media Events
October 7, 2025
Manila, Philippines