Quanta Services (NYSE: PWR) — 2Q26 Earnings Preview

Event: Thursday, July 30, 2026, before market open
Core debate: Can Quanta continue converting exceptional demand for grid, generation, and large-load/data-center infrastructure into higher backlog, accelerating revenue, and durable margin expansion—while keeping full-year guidance conservative enough to support another raise?

Snapshot: expectations are high

Metric 2Q26 consensus 2Q25 actual Implied YoY
Revenue $8.55B $6.77B +26%
Adjusted EPS $3.27 $2.48 +32%
Total backlog ~$50.4B $35.8B +41%

Consensus implies backlog rises another roughly 4% sequentially from the record $48.5B reported at the end of 1Q26.

PWR closed July 29 at $569.45—about 29.5% above its January 2 close, but approximately 27.5% below its May 6 closing high of $785.24. That pullback reduces some valuation/momentum risk, but the earnings bar remains demanding because investors expect both a quarterly beat and evidence that the multiyear growth algorithm is intact.

The setup: 1Q set a very high starting point

Quanta entered the second quarter with substantial momentum:

The important contextual point is that management characterized the 1Q outperformance as more than a timing benefit. It raised the full-year outlook by more than the first-quarter beat, emphasized strengthened visibility into the back half, and described backlog additions as broad-based rather than dependent on one isolated large award.

What matters most in the print

1. Backlog growth—and, more importantly, its composition

The headline figure to watch is total backlog versus the ~$50.4B expectation. But the qualitative details should matter more than a small numerical beat or miss.

Investors should look for evidence of continued order growth across:

At 1Q, management said backlog growth was broad-based, with 765-kV work representing less than one-quarter of the quarterly increase. That is constructive: it suggests the order book is being built from multiple end markets rather than a single mega-project.

Bullish read-through: backlog above $50B, firm RPO growth, and commentary that large-load and generation awards are progressing from pipeline to contracted work.

Potential concern: a headline backlog increase driven primarily by lower-quality MSA estimates, a slower conversion of announced generation opportunities into awards, or a lack of detail on the timing of project starts.

2. Electric revenue and margin durability

Electric represented 82% of 1Q revenue and remains the main earnings engine. The segment’s 1Q revenue grew 31% year over year and its operating margin expanded 40 basis points to 8.7%.

For 2Q, investors will focus on whether Quanta can sustain:

Quanta has been investing aggressively in transformer manufacturing and off-site fabrication/logistics capacity. Those investments are strategically important because they address two major bottlenecks in power infrastructure: availability of critical equipment and skilled-labor constraints. The near-term tradeoff is higher capital intensity, so management’s comments on returns and cash conversion will matter.

3. Underground & Infrastructure: margin expansion is a key upside lever

This is arguably the most important margin debate. In 1Q, Underground & Infrastructure margin expanded to 7.5% from 6.0% a year earlier, aided by execution and a better work mix, including Dynamic Systems.

Management has indicated this segment has a path toward materially higher profitability over time, potentially including double-digit operating margins. The 2Q print should clarify whether 1Q was an early signal of a durable mix/operational shift or simply an unusually favorable quarter.

Key watch items:

4. Full-year guidance: a raise is possible, but not required for a good quarter

The existing 2026 adjusted-EPS range of $13.55–$14.25 already calls for substantial growth. Management’s posture has historically been prudent, and it retained a wide free-cash-flow range after 1Q despite saying it had greater confidence in landing near the upper end.

A guidance increase would be a clear positive, especially if it reflects:

  1. Better underlying operations rather than tax or discrete items;
  2. Incremental confidence in second-half project execution;
  3. Margin upside in Underground & Infrastructure; and
  4. Stronger cash-flow conversion despite investment in vertical supply-chain capacity.

However, a reiteration should not automatically be read negatively. Management may choose to preserve contingency for weather, project timing, permitting, labor, fixed-price-contract risk, and an uncertain macro/geopolitical backdrop. The key is whether commentary indicates that underlying demand, execution, and backlog visibility continue improving.

Why the long-term thesis remains compelling

Quanta is positioned at the intersection of several capital-spending cycles:

Management frames the combined utility, generation, and large-load opportunity as a $2.4T addressable market through 2030 and has articulated a plan to more than double adjusted EPS by 2030. The company’s differentiated asset is not merely end-market exposure; it is its ability to provide labor, engineering, procurement, fabrication, construction, and supply-chain certainty at scale.

That distinction is particularly relevant in the current environment: many prospective data-center and generation projects are constrained less by demand than by power availability, interconnection queues, permitting, transformer lead times, and skilled labor.

Principal risks into the quarter

  1. Expectations and valuation sensitivity. Consensus already assumes roughly 26% revenue growth and 32% adjusted-EPS growth.
  2. Project timing. Permitting, interconnection, air permits, right-of-way, utility approvals, and customer decisions can push revenue and backlog conversion between quarters.
  3. Execution risk on larger, more complex projects. Quanta is selectively pursuing more generation and large-load work; contract structure and risk allocation will be crucial.
  4. Margin normalization. Investors will want confirmation that recent Underground & Infrastructure margin gains are repeatable.
  5. Cash conversion and capital intensity. The company is investing in transformers, fabrication, equipment, and capacity. Strong earnings without corresponding cash generation would weaken the quality of the result.
  6. Political and regulatory risk. Utility rates, data-center power usage, transmission permitting, generation policy, tariffs, and tax incentives can affect project timing and economics.

Bottom line

PWR’s 2Q26 report is likely to be judged less on whether it beats EPS by a few cents and more on whether it reinforces the “compounding infrastructure platform” narrative. A favorable report would combine: (1) revenue and adjusted EPS ahead of expectations, (2) backlog at or above $50B with broad-based awards, (3) continued Electric execution, (4) further Underground & Infrastructure margin progress, (5) solid cash conversion, and ideally (6) an upward revision to 2026 guidance.

The most constructive outcome is not simply another strong quarter—it is proof that Quanta can turn the accelerating AI/grid/generation opportunity into programmatic, high-return, multi-year revenue while maintaining discipline on project risk and capital deployment.