Interconnection agreements grew 33% on an annual basis in 2024 and retained the momentum until 2025, said Wood Mackenzie.
US Grid Interconnection Agreements rose 33% year after year in 2024 and reached a record of 75 GW, according to a new report from Wood Mackenzie.
Solar and Energy storage projects have recorded 75% of the record total, whereby 58 GW in Interconnection agreements were established, according to the report.
Raster interconnection processes have become streamlined and more efficient over time. In addition to increased connection agreements, regional grid operators experience 9% less new project listings, an increase of 51% in recordings of non-living projects since 2022, Wood Mackenzie said.
‘It is clear that These reforms Tisen early signs of promise when accelerating the pace of interconnection studies, “said Kaitlin Fung, research analyst, North America Nutschal Solar energy for Wood Mackenzie.
Wood Mackenzie expects Solar to maintain its leading share of interconnection agreements in 2025. Since 2019, Solar has taken into account half of all signed interconnection agreements, a trend that Wood Mackenzie expects to continue in 2025.
“Interconnection success and waiting operating times vary dramatically for various grid operators in regions,” Fung said.
Texas’ Electric Reliability Council from Texas (ERCOT) leads American grid operators in success rates and processing speed, which shows Wood Mackenzie to the streamlined queue process and connecting and managers approach.
The independent system operator of New England (ISO-NE) stands in second place for his high Application-Succe percentage, but registered the longest processing time due to the slow shift from serial to cluster-based applications.
The independent system operator of California (CAISO) is in third place, but placed one of the lowest interconnection success, which Wood Mackenzie was linked to a high volume of speculative projects.
Wood Mackenze noted that natural gas has increased its amount of interconnection requests since 2022, with a capacity of 121 GW, a trend that expects to continue. Natural gax projects, however, are becoming increasingly difficult to obtain the approval of interconnection, with successful projects fall 25% since 2022, Wood Mackenzie said. The decrease in success rates of natural gas between connections is powered by PJM, Miso and Ercot.
“Although we see a positive momentum, there are considerable challenges,” Fung said. “Regional differences in processing times emphasize the need for continuous reform efforts.”
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