U.S. net power generation capacity additions reached 6.0GW in May, the strongest May in a decade driven by solar and wind

Overview

This report tracks the latest EIA U.S. power generation capacity data to assess supply-side progress corresponding to growth in AI, data center, and broader power demand. U.S. net power generation capacity additions reached 6.0GW in May 2026, mainly driven by wind and solar, showing that renewable energy installations continue to enter the grid at a relatively fast pace. Goldman Sachs believes this supports its constructive view on renewable energy, grid buildout, and EPC companies with labor access capabilities, though labor, permitting, project delays, and policy uncertainty remain execution risks.

Core views

The core views include: first, net capacity additions in May were strong, with wind and solar contributing the most; second, cumulative additions through May reached 33% of the full-year 2026 forecast, slightly below the 36% average for the same period since 2020, but the single-month performance was outstanding; third, the pipelines for solar, wind, and storage remain generally solid, but the decline in renewable energy pipelines in 2028-2030 may reflect longer development cycles or uncertainty over the step-down of tax credits; fourth, natural gas projects are highly concentrated in 2028 and 2030, and data visibility and execution certainty require ongoing validation; fifth, labor shortages may become one of the biggest practical constraints on realizing AI and data center power demand.

Analysis framework

The report is based on EIA power generation capacity data, breaking down added capacity, planned projects, development stages, delays, cancellations, and postponements by technology type, and comparing these data against Goldman Sachs' forecasts for net capacity additions in 2026-2030. At the same time, the report combines management commentary from EPC companies, utilities, renewable developers, and forum research to assess the constraints of labor and component availability on project execution.

Methodology notes

• Power generation capacity trackingEIA installed capacity and project pipeline comparison

  Compare added capacity, planned capacity, and Goldman Sachs forecasts by technology pathway

  The report matches projects in EIA data such as solar, wind, natural gas, storage, CCGT, and coal retirements with Goldman Sachs' full-year and medium- to long-term estimates of net capacity additions, in order to judge whether supply-side progress supports power demand growth.

• Project execution riskDevelopment stage, delay, and cancellation monitoring

  Use project development status to assess the probability of capacity delivery

  The report tracks whether projects are under construction, have received permitting approval, or are awaiting approval, and observes the share of capacity delayed by more than six months, postponed, or canceled, to identify the risks in converting planned capacity into actual commercial operation.

• Thematic investment mappingAI power demand and beneficiary asset mapping

  Map growth in power demand to renewable energy, EPC, and utility companies

  The report links power demand growth driven by AI and data centers with renewable energy expansion, transmission and distribution buildout, EPC labor capacity, and utility investment needs, thereby forming thematic views on names such as NXT, FSLR, XEL, PWR, and NEE.

Asset mapping & comparison

Structured mapping from thesis to named assets (strengths, weaknesses, peers, risks).

• NXT

  Goldman Sachs rates it Buy and includes it on the Conviction List; it benefits from renewable energy and solar tracking system demand.

  Strengths

  The solar project pipeline is relatively solid, with pipeline coverage reaching 85% and 102% for 2026 and 2027, respectively, supporting demand in the solar supply chain.

  Weaknesses

  Renewable energy pipelines show declines in 2028-2030, which may reflect longer development cycles or uncertainty over policy step-downs.

  Comparison

  Compared with natural gas projects concentrated in later years, solar has stronger visibility in the near-term pipeline.

  Risks

  Intensifying competition, customer loss, patent protection, market demand, policy changes, and supplier product availability and pricing.

• FSLR

  Goldman Sachs rates it Buy with a 12-month target price of $310, benefiting from U.S. solar additions and the manufacturing theme.

  Strengths

  Utility-scale solar added 1.9GW in May, reaching 28% of the full-year forecast year to date, and the project pipeline remains relatively solid.

  Weaknesses

  Part of the remaining planned solar capacity for 2026 is still in early construction or permitting stages.

  Comparison

  Within the renewable expansion theme, FSLR has more direct exposure to solar manufacturing and U.S. policy support.

  Risks

  Oversupply of modules, module costs higher than expected, changes in trade policy, and changes in U.S. manufacturing tax credits.

• XEL

  Goldman Sachs rates it Buy with a 12-month target price of $92, making it a beneficiary utility name with relatively high renewable exposure.

  Strengths

  Renewable additions and grid investment demand support the utility capex and clean energy transition narrative.

  Weaknesses

  Utilities remain affected by regulatory returns, cost recovery, and capex execution.

  Comparison

  Compared with equipment and EPC names, XEL's thematic exposure is more tilted toward utility investment and the regulatory framework.

  Risks

  Adverse rate case outcomes, litigation, failure to narrow the gap between actual ROE and authorized ROE, and poor cost management.

• PWR

  Goldman Sachs rates it Buy with a 12-month target price of $826, and sees it as an EPC beneficiary with scale advantages amid labor tightness.

  Strengths

  The report believes labor constraints may benefit EPC companies with labor acquisition capabilities and scale advantages; PWR has direct exposure to power transmission, data centers, and infrastructure construction.

  Weaknesses

  Project delivery and margins remain affected by supply chains, labor costs, and execution pace.

  Comparison

  Compared with pure-play renewable equipment providers, PWR is more of a beneficiary of themes tied to grid and engineering construction execution capability.

  Risks

  Slower revenue growth due to weakening project volume momentum, delivery delays caused by supply chain challenges, and slower margin improvement due to cost inflation or operational issues.

• NEE

  Goldman Sachs does not rate it, but the report believes it should be a beneficiary due to its high renewable energy exposure.

  Strengths

  It has thematic relevance in an environment where renewable installations continue to grow and solar and wind pipelines remain solid.

  Weaknesses

  The report does not provide a formal rating or target price, making the investment conclusion less direct than for Buy-rated names.

  Comparison

  Like XEL, it is a utility and renewable-related asset, but in this report NEE is mentioned only as an unrated beneficiary.

  Risks

  Labor, project permitting, policy, and capex execution risks may affect the pace of renewable development.

• Natural gas power generation

  As an important source of peaking and reliable capacity to meet growing power demand, its project pipeline is concentrated in 2028 and 2030.

  Strengths

  Planned projects for 2028 and 2030 reach 116% and 232% of Goldman Sachs' expected additions for those years, respectively, showing strong willingness to supply in the long term.

  Weaknesses

  The 2026 pipeline is only about 51% of expected additions, and pipeline activity is concentrated in later years, leaving relatively weak visibility for near-term commissioning.

  Comparison

  Compared with solar and wind, the natural gas pipeline is more concentrated and more dependent on delivery of later-stage projects.

  Risks

  EPC labor, the subjectivity of pipeline self-reported data, project permitting, components, and construction cycles may all affect delivery.

• Energy storage

  Related to renewable expansion and grid flexibility demand, with 2026 addition progress reaching 44% of the full-year forecast.

  Strengths

  The total project pipeline is about 63GW and remains at a large scale, helping support renewable grid integration and power system flexibility.

  Weaknesses

  Of planned capacity, 20.6GW or 32.7% has experienced delays of more than six months, and 7.1GW of projects have already been postponed or canceled year to date in 2026.

  Comparison

  The storage pipeline is close in size to natural gas, but its delay ratio is higher than that of natural gas projects.

  Risks

  Project delays, cancellations, a rising share of pending approvals, and changes in costs and supply chains may affect the pace of commissioning.

Key data

• Net power generation capacity additions in May 20266.0GWHigher than 4.9GW in the same period last year and above the average May addition of 1.2GW over the past nine years.
• Wind additions in May3.8GWOne of the main sources of net additions this month.
• Utility-scale solar additions in May1.9GWTogether with wind, drove the strong capacity growth in May.
• Cumulative additions through May as a share of full-year forecast33%Slightly below the average level of 36% for the same period since 2020.
• Year-to-date solar addition progress in 202628%Equivalent to 28% of Goldman Sachs' forecast for full-year 2026 solar capacity additions.
• Year-to-date wind addition progress in 202670%Has reached 70% of Goldman Sachs' full-year wind addition forecast.
• Year-to-date storage addition progress in 202644%Equivalent to 44% of the full-year energy storage capacity addition forecast.
• Year-to-date CCGT addition progress in 202663%Combined-cycle natural gas additions have reached 63% of the full-year forecast.
• Year-to-date simple-cycle natural gas addition progress in 20263%Down after having risen to 9% last month.
• Coal retirement progress1.7GW, about 46% of the full-year expectation of 3.7GWThere were no new coal retirements in May.
• Solar project pipeline coverage2026 85%, 2027 102%Measured against Goldman Sachs' expected net additions for the corresponding years, with little change from April data.
• Wind project pipeline coverage2026 70%, 2027 90%The 2026 ratio fell from 114% in April to 70%, mainly because capacity has already entered operation.
• Natural gas project concentration2028 116%, 2030 232%Planned natural gas projects are highly concentrated relative to Goldman Sachs' expected additions for the corresponding years; 17GW of projects were added in March.
• Total solar project pipeline122GWThe report says the solar pipeline has remained stable after significant growth.
• Total wind project pipeline21GWDown 4.33GW year over year and 3.76GW month over month.
• Total natural gas project pipeline67GWUp 30.5GW year over year and 1.1GW month over month.
• Total storage project pipeline63GWDown 2.6GW year over year and 0.7GW month over month.
• Additional labor demand in the power sector by 2030>500,000 peopleIf labor productivity cannot improve significantly, the U.S. power sector will need large-scale additions to the workforce.
• Additional jobs needed in manufacturing, construction, and operations & maintenanceabout 300,000 peopleGoldman Sachs estimates this will be needed to meet power supply requirements by 2030.
• Additional jobs needed in transmission and distributionabout 207,000 peopleThe report also estimates that around 207,000 positions will still be needed in transmission and distribution.
• Transmission and distribution labor shortfall78,000 peopleEven assuming all energy-related apprentices enter transmission and distribution, a shortfall would still exist in the base case.

Impact & implications

For investment, the report reinforces two main themes: first, renewable energy and grid construction remain important sources of supply for growing U.S. power demand, benefiting solar, wind, storage, grid, and related utility assets; second, labor and project execution capabilities are becoming differentiating factors, and EPC companies with scale, training systems, and labor acquisition capabilities may gain a competitive advantage. Conversely, permitting delays, the phase-down of tax credits, the concentration of natural gas projects and the limited verifiability of self-reported data, as well as shortages of skilled workers, could all affect the realization of planned capacity.

Risks

• Shortages of skilled labor may constrain construction of AI, data center, natural gas generation, and transmission and distribution projects.
• Project permitting, delays, cancellations, or postponements may prevent planned capacity from entering operation on schedule.
• Declines in solar and wind pipelines in 2028-2030 may reflect uncertainty over the phase-down of tax credits or longer development cycles.
• Natural gas projects are highly concentrated in 2028 and 2030, and EIA project updates are company self-reported, creating timeline subjectivity.
• Rising equipment, module, supply chain, and labor costs may compress project economics and company profit margins.
• At the individual stock level, there are also risks such as rate cases, litigation, trade policy, manufacturing tax credits, and changes in market demand.

What to watch

• Actual commissioning progress for solar, wind, storage, and natural gas in future monthly EIA power generation capacity data.
• Changes in development stages of the remaining planned capacity for 2026: 33.9GW of solar, 6.0GW of wind, 5.1GW of natural gas, and 17.7GW of storage.
• Whether the concentrated natural gas pipeline in 2028 and 2030 continues to hold, and whether more actual construction progress emerges.
• Wages, labor supply, and training cycles for key trades such as electricians, transmission line workers, project managers, pipefitters, and welders.
• Latest earnings-call commentary from EPC and utility companies on labor, components, data center projects, and transmission and distribution construction.
• Changes in U.S. renewable energy tax credits, trade policy, manufacturing subsidies, and permitting processes.
• Whether the pace of coal retirements remains consistent with Goldman Sachs' full-year expectation of 3.7GW of retirements.