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Application support and technical review for utility interconnection, the single biggest schedule risk on most solar projects today.
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Get interconnection application support and technical review for solar projects. Engineering services built for utilities with multi-year queue backlogs.
Median time from interconnection request to commercial operation now runs past five years in several regions, and most projects that enter a queue never reach commercial operation at all. Application support here focuses on submitting a complete, technically sound request the first time, since resubmissions cost queue position.
Load flow, short-circuit and voltage impact are reviewed internally before formal submission, catching a technical issue a utility's cluster study would otherwise flag months later.
Screening checks a project's technical package against the specific utility's interconnection standard before submission, since requirements vary meaningfully between utilities and even between service territories.
A technically complete first submission avoids restarting the clock on a multi-year queue.
Internal review catches load flow or voltage problems before they surface in a formal cluster study months later.
Queues are backed up because the volume of projects applying has outpaced the utilities' and grid operators' capacity to study them, and each project's study can depend on others ahead of it, so one withdrawal can force restudies down the line. Many regions are also moving to cluster study processes to work through the backlog, which adds coordination time. The result is that interconnection is now the single biggest schedule risk on most projects.
An interconnection study reviews how the project affects the grid at the point of connection, typically screening for thermal loading, voltage and power quality, protection coordination, and short-circuit contribution, and flags any upgrades the utility may require. Reviewing these before submission catches issues the utility would otherwise find, which is where resubmissions and lost queue position come from. Sunhub's readiness screening checks the application against utility requirements ahead of the utility's own study.
Application support does not let you jump the queue, but it protects the position you have by getting the submission complete and technically correct the first time, avoiding the deficiencies and resubmissions that cost queue slots. Screening against utility requirements before filing is where the real schedule savings come from. The aim is to keep the project moving rather than losing months to a rejected application.