Solar overruns cloud a big backlog
- Primoris has a large $11.6 billion backlog, but the profit inside that backlog is now the main question.
- The Energy segment's Q1 2026 gross margin fell to 7.6% from 10.7% a year earlier.
- On June 22, 2026, the company cut full-year 2026 adjusted EBITDA guidance to $275 million to $325 million from $480 million to $500 million.
- Utilities is the steadier side, with Q1 2026 revenue up 12.3% and gross margin up to 9.8%.
- The PayneCrest deal adds data center exposure, but investors first need proof that solar project losses are contained.
Backlog helps, trust hurts
Primoris has the kind of demand story contractors want. Utilities need grid work. Energy customers need solar, storage, gas generation, industrial work, and data center power systems. At March 31, 2026, total backlog was $11.6 billion, which gives the company a long list of future work.
The problem is that backlog only matters if the work is priced well and run well. In Q1 2026, Energy gross margin fell to 7.6%, and management first described the trouble as a small number of solar projects with execution issues. Six weeks later, Primoris cut its 2026 outlook because cost overruns on six renewable projects were worse than expected.
That shift changed the story. The bull case still has pieces: Utilities is improving, and PayneCrest gives Primoris more exposure to data centers. But the bear case is now louder. Investors have to ask whether the renewables issue is ring-fenced, or whether more projects in backlog could disappoint.
For Finn, this is a show-me situation. The next good sign would be stable Energy margins after the six problem projects finish. The next bad sign would be another estimate change, another margin drop, or vague answers about what went wrong.
Paid to build hard assets
Primoris makes money by building, repairing, and maintaining infrastructure in the United States and Canada. Its jobs range from daily utility work orders to large projects that can run for 36 months or longer.
The contract mix matters. Some contracts are time and material or cost-reimbursable, where the customer carries more cost risk. Others are fixed-price or unit-price, where Primoris can lose profit fast if labor, weather, design changes, or sequencing problems push costs above the bid.
That is what makes the current solar issue so important. A construction company can report strong revenue and still disappoint if project estimates are wrong. In Q1 2026, consolidated revenue was $1.6 billion, but gross margin fell to 8.6% from 10.4% a year earlier because Energy margins weakened.
The May 2026 PayneCrest acquisition adds electrical construction skill for industrial and data center projects. It may be a useful growth path, but it also raises the need for clean execution and good capital discipline after an all-cash deal valued at about $399.5 million, net of cash acquired.
Where the work comes from
Utility power and gas work
This includes installation and maintenance for electric and natural gas distribution and transmission systems. It is the steadier side of the company right now.
Renewables and storage projects
Primoris builds large solar and energy storage projects. Demand can be strong, but this is also where the current cost overruns are concentrated.
Industrial and energy facilities
The Energy segment serves LNG, petrochemical, renewable fuels, and other industrial customers. These jobs can be large and complex, so bidding and project controls matter.
Data center electrical services
PayneCrest expands Primoris into electrical work for data centers, manufacturing, and advanced facilities. This could become a bigger growth lane if the integration works.
Pipeline services
Primoris provides pipeline construction, maintenance, and integrity services. Demand can move with energy markets and customer capital budgets.
Civil infrastructure
The company also works on civil projects such as highways and bridges. These projects add diversity, but they still carry normal construction cost and timing risk.
Two segments, one weak spot
Mix is based on Q1 2026 segment revenue before intersegment elimination: Utilities revenue was $632.9 million and Energy revenue was $955.4 million. A small number of customers can make up a large part of revenue in any given year.
What could break the thesis
Solar overruns spread
High impact · Medium oddsThe June 2026 guidance cut named six renewable projects, but investors do not yet know if all high-risk work has been isolated. If similar problems appear in other renewable projects, backlog quality will look much worse.
Management credibility gap
High impact · Medium oddsIn May, management framed the issue as a small number of solar projects. In June, the company cut adjusted EPS guidance to $2.05 to $2.60 from $4.80 to $5.00. That gap makes future guidance harder to trust.
Backlog converts at poor margins
High impact · Medium oddsBacklog was $11.6 billion at March 31, 2026, but backlog is not profit. Customers can delay or cancel work, and project estimates can change. A large backlog with weak margins can still hurt earnings.
Fixed-price contract pressure
Medium impact · High oddsPrimoris uses fixed-price and unit-price contracts for part of its work. These can be profitable when estimates are right, but cost overruns hit Primoris directly when they are wrong. Labor shortages, weather, redesigns, and sequencing changes are known pressure points.
PayneCrest does not offset the damage
Medium impact · Medium oddsThe PayneCrest acquisition gives Primoris more data center and advanced facility exposure. But the deal cost about $399.5 million, net of cash acquired, and was funded with debt and cash. If integration is messy or data center work is not profitable, the deal will not fix the renewables issue.
In one breath
What does Primoris Services do?
Primoris builds and maintains infrastructure for utilities, energy, renewables, industrial customers, data centers, pipelines, and civil projects. It earns revenue through construction, engineering, maintenance, and related services.
Why did Primoris cut 2026 guidance?
On June 22, 2026, Primoris cut its full-year outlook because cost overruns on six renewable projects were worse than expected. The cut lowered adjusted EBITDA guidance to $275 million to $325 million from $480 million to $500 million.
Is Primoris a data center stock?
Only partly. The PayneCrest acquisition increases exposure to data center electrical work, and power demand from AI data centers is a real tailwind. But the current investment debate is still dominated by renewables execution and Energy segment margins.
What should investors watch next?
Watch whether the six problem renewable projects finish without more charges. Also watch Energy gross margin, backlog quality, and whether PayneCrest helps Primoris win profitable data center work.