Solar Interconnection Application Reviewer

The interconnection application that backs up a utility's queue is rarely the one that's obviously wrong - it's the residential or small-commercial solar (and battery) packet that arrives signed, with a one-line diagram attached and a system size that looks small enough to fast-track, so a coordinator clears it to the next step and the real problem surfaces weeks later. The exposure lives one layer down: an inverter that isn't on the certified UL 1741-SA / IEEE 1547-2018 list so it can't qualify for simplified review, an export rating that exceeds the customer's service or the non-export commitment on the form, aggregate DER on the line section already past the 15%-of-peak-load screen so the project can't be fast-tracked and needs a supplemental study, a one-line diagram missing the AC disconnect or the dedicated meter, or a Net Energy Metering eligibility box that doesn't match the equipment. Each is small per packet; across a growing queue it is mis-queued projects, studies started late, Permission-to-Operate delays, and grid-impact risk that a 'signed and small' label hides. This assistant reads each interconnection application against the utility's interconnection requirements and tariff screens, returns a screening result (approve to next step / corrections required / supplemental review), a grid-impact risk level, the specific items it flagged and the screen or requirement each one fails, a suggested correction, and a recommended action - turning a queue of packets into a consistent, defensible first-pass review in minutes, while an interconnection engineer or coordinator confirms every flag and owns the decision to advance, return, or study the application.

Category: Technology

How it works

1. An interconnection coordinator or distribution engineer submits an application package - the system details (DER size, inverter make/model, export vs. non-export, service rating), the one-line diagram and site plan, the signed customer forms, and the NEM/tariff election - along with the utility's interconnection requirements and the applicable fast-track screens.
2. The assistant reads the package against the requirements: is the inverter on the certified UL 1741-SA / IEEE 1547-2018 list, does export stay within the service and the non-export commitment, does the project pass the line-section penetration screen (e.g., 15% of peak load) or trip a supplemental study, is the one-line complete with AC disconnect and metering, and does the NEM election match the equipment?
3. It returns a screening result (approve to next step / corrections required / supplemental review), a grid-impact risk level, the specific items flagged with the screen or requirement each one fails, a suggested correction, and a recommended action - clear to advance, return for a corrected packet, or route to a supplemental impact study.
4. It hands the screened application and its reasoning to an interconnection engineer or coordinator to confirm the flags and decide - nothing is approved, queued, or granted Permission to Operate automatically, no study is ordered or waived on the assistant's say-so, and a person owns every interconnection decision and the relationship with the applicant.

Key benefits

• Apply one standard to every application - each packet is screened against the same interconnection requirements and fast-track screens the moment it arrives, replacing the coordinator-by-coordinator variation that lets an uncertified inverter pass on one review and get caught on the next
• Catch what a signed, small-looking packet hides - an inverter that isn't on the certified list, export above the service or the non-export commitment, line-section penetration past the screen, and a one-line missing the AC disconnect are surfaced even when the system size looks fast-track eligible
• See exactly why each item was flagged - the specific element and the screen or requirement it fails are spelled out with a suggested correction, so a corrections request or a supplemental-study referral is documented and defensible if the applicant pushes back
• Move the clean applications fast - packets where the equipment, export, penetration, and diagram all check out are marked approve-to-next-step with a documented rationale, so engineering time goes to the projects that actually carry grid-impact or study risk

Use cases

• Utility and electric-cooperative interconnection coordinators screening high volumes of residential and small-commercial solar and storage applications before advancing them in the queue
• Distribution and DER planning engineers applying fast-track screens (penetration, export, certified equipment) to decide which projects can be simplified and which need a supplemental impact study
• Solar developers and EPC interconnection teams self-checking application packages against a utility's requirements before submission to avoid corrections and queue delays
• Program and queue-management leads who need every application exception mapped to a specific screen or requirement ahead of a Permission-to-Operate decision or a regulatory audit

Good to know

No external connection - the applications and interconnection requirements you paste or upload stay in your workspace. The assistant checks each interconnection application only against the requirements, tariff screens, and certified-equipment and penetration rules you provide - whether the inverter is on the certified UL 1741-SA / IEEE 1547-2018 list, whether export stays within the service and the non-export commitment, whether the project passes the line-section penetration screen or trips a supplemental study, whether the one-line is complete with AC disconnect and metering, and whether the NEM election matches the equipment - and it flags and recommends, it does not decide. It does not approve applications, advance or hold a queue position, order or waive a study, grant Permission to Operate, or contact the applicant. Crucially, this is a review aid, not an engineering determination of grid impact: it works from the requirements and screens you apply and escalates anything that needs a human call, but an interconnection engineer or coordinator must apply the current tariff and study criteria and own every advance, corrections request, and study decision - it never approves or queues on its own.

Frequently asked questions

Does this assistant automatically approve solar interconnection applications?

No, it never approves or queues applications. It screens each packet against your utility requirements and returns a result (approve to next step, corrections required, or supplemental review) with flagged items and suggested corrections, but an interconnection engineer or coordinator must confirm every flag and own the final decision.

What specific things does it check in an application?

It checks whether the inverter is on the certified UL 1741-SA / IEEE 1547-2018 list, whether export stays within the service rating and non-export commitment, whether the project passes the line-section penetration screen (e.g., 15% of peak load), whether the one-line diagram includes the AC disconnect and metering, and whether the NEM election matches the equipment.

Do I need to connect it to my utility's database or any external apps?

No, it works entirely within your workspace. You paste or upload the application package and the utility's interconnection requirements, and the assistant screens against those documents only-no external connections or integrations are needed.

Can it handle applications with different utility requirements?

Yes, you provide the specific interconnection requirements and fast-track screens for each utility, and the assistant applies those rules to the application. It flags items based on the requirements you supply, so it can adapt to different utilities as long as you provide the correct criteria.

How does it handle a packet that looks fast-track eligible but has hidden issues?

It surfaces hidden issues like an uncertified inverter, export exceeding the service rating, or a missing AC disconnect on the one-line diagram-even if the system size looks small enough to fast-track. It flags each specific item with the screen it fails and a suggested correction, so nothing slips through a quick review.