Residential flourishes and utility flounders in mixed 2018 for US PV

Facebook
Twitter
LinkedIn
Reddit
Email
Steady growth of residential PV installations shows the market nears maturity, the analysis said (Credit: SEIA / Wood Mackenzie)

Tariff and policy uncertainty saw installations decline across US utility and non-residential PV last year even as the residential segment bounced back, according to the Solar Energy Industries Association (SEIA) and Wood Mackenzie.

The latest update from the trade body and the consultancy found a 7% year-on-year dip for US utility-scale PV installations in 2018.

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 segment, the analysis found, produced the bulk (6.2GW) of PV-wide capacity additions (10.6GW) in the country last year but faltered under “disruption, delay and even cancellation” due to Section 201 tariffs.

Adopted last year, the US levies on module and cell imports prompted sponsors to postpone 2018 commercial launches to 2019, according to the SEIA and Wood Mackenzie. In the Carolinas, delays were compounded by a hold-up with interconnections under the PURPA programme.

For utility-scale PV, the flip side to the Section 201 tariffs was that module prices are falling faster than expected. This, the analysis pointed out, boosted competitiveness and helped drive the signing of 13.2GW of utility solar PPAs in 2018; the resulting, current contracted pipeline of 25.3GW marks an all-time record for US solar. 

PV in US power addition top two for sixth year running

According to the SEIA and Wood Mackenzie, the 10.6GW added across all PV subcategories in 2018 marks the sixth consecutive year where solar is amongst the US top two for power additions, together with natural gas.

Unlike utility solar, the residential segment reversed its decline throughout 2017 by recording in 2018 year-on-year installation growth of 7%. The steady pace of addition indicates the market is nearing its maturity point, the new analysis indicates.

According to the document, installations across California, Massachusetts and the other typical residential heavyweights are being fast overtaken by new-entrants including Texas and Florida.

Future residential growth can be fuelled by incentives and net metering – Nevada saw a 261% jump in 2018 after reinstating the policy – but could be hindered by high customer acquisition costs, the SEIA and Wood Mackenzie noted.

Their analysis found a slight decline – 8% – in non-residential installations of US PV in 2018. Massachusetts and California alone saw a joint 450MW dip last year, although the former (64% drop) bore the brunt to a greater extent than the latter (17%).

See here for more information on the US Solar Market Insight by the SEIA and Wood Mackenzie

Read Next

November 12, 2026
Terra-Gen completes PV park in California, Duke Energy Florida plans four new solar arrays, and Altus Power acquires another 92 projects.
November 12, 2026
SMA Solar has narrowed its full-year guidance for 2026 towards the upper half of its previously raised range after reporting improved financial results for the first nine months of 2026.
November 12, 2026
Almost 2GW of PV capacity is to be put out to tender in the latest phase of Saudi Arabia’s renewable energy procurement programme.
November 12, 2026
NAED Energy has unveiled PV-1 PECVD-V, a vertical in-line deposition platform designed for high-volume tandem solar cell production.
November 11, 2026
A proposed 840MW PV project in southern England that would have become the country’s largest has been turned down by the UK government.
Premium
November 11, 2026
A boom in the satellite business is creating new opportunities for terrestrial PV manufacturers in space, writes Catherine Early.

Upcoming Events

Solar Media Events
November 24, 2026
Warsaw, Poland
Solar Media Events
February 2, 2027
London, UK
Solar Media Events
April 20, 2027
Istanbul, Türkiye