United States grid interconnection agreements reached historic highs in 2024, surging 33% to 75 GW — the best quantity on file — as a consequence of new federal rules aimed toward streamlining the method, in line with a brand new report from Wooden Mackenzie.
In response to the report “Tracking the progress of US grid interconnection,” knowledge from Wooden Mackenzie’s Lens Energy and Renewables platform reveals that Federal Power Regulatory Fee (FERC) Order No. 2023, issued in July of 2023, together with different reforms led by Unbiased System Operators (ISOs), has made a substantial influence on processing interconnection agreements, by driving enhancements by means of decreasing speculative tasks and clearing queue backlogs.
On high of elevated connections, regional grid operators are experiencing 9% fewer new undertaking entries, a 51% enhance in withdrawals of non-viable tasks since 2022.
“It’s clear that these reforms are displaying early indicators of promise in accelerating the tempo of interconnection research,” stated Kaitlin Fung, analysis analyst, North America Utility-Scale Photo voltaic for Wooden Mackenzie. “We noticed a file yr in 2024, with 75 GW of secured capability. 2025 is sustaining this momentum, as main grid operators have already secured 36 GW by means of July 2025, positioning the yr to match 2024’s file.”
Photo voltaic and storage proceed to dominate secured interconnection agreements
Photo voltaic and storage applied sciences captured 75%, or 58 GW, of all interconnection agreements in 2024 and can retain an identical market share in 2025. Photo voltaic has accounted for half of all signed IAs since 2019, a pattern that continues in 2025.
Pure gasoline has seen a rise in interconnection requests since 2022, including 121 GW of capability. This pattern has continued in 2025 with new functions for gasoline technology already breaking annual information by mid-year. Nonetheless, the variety of profitable gasoline interconnection agreements is down 25% since 2022, primarily in PJM, MISO and ERCOT.
Regional variations
“Interconnection success charges and queue processing instances differ dramatically for various grid operators throughout areas,” stated Fung.
In response to the report, ERCOT leads in each success charges and processing pace as a consequence of its streamlined queue course of by means of their connect-and-manage method. ISONE ranks second in success charges however has the longest processing time as a consequence of its delayed transition from serial to cluster-based processing. CAISO ranks third, however has one of many lowest success charges, pushed by a excessive quantity of speculative tasks.
“Whereas we’re seeing constructive momentum, important challenges stay,” added Fung. “Pure gasoline tasks are getting into queues at file ranges however declined in annual signed interconnection agreements since 2022, and regional disparities in processing instances spotlight the necessity for continued reform efforts.”
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