Case Studies: Real Solar Permit & Interconnection Projects
Three projects from the EnersolConnect portfolio — a Puerto Rico battery install navigating OGPe and LUMA, a 240 kW California commercial array, and a fast-turnaround Texas residential Powerwall job. Real project codes, specs, and turnaround times.
Residential + Battery, LUMA Interconnection in 4 Days
The situation
Puerto Rico solar-plus-storage projects have a structural complication mainland projects don't: two separate authorities in the loop (OGPe for the building permit, LUMA for interconnection), and an outage-prone grid that makes battery sizing and interconnection paperwork genuinely load-bearing — not a nice-to-have add-on.
What shipped
A full plan set covering the 12.4 kW array and 13.5 kWh battery integration, PE-stamped for Puerto Rico, structured for both OGPe permitting and LUMA's interconnection process — in 4 business days.
Why it matters
This is the kind of project where "we cover all 50 states" isn't the differentiator — "we know OGPe and LUMA specifically" is. It's also a direct example of the bilingual EN/ES support that's part of the core offer, not a marketing bullet point.
240 kW Commercial Carport Array
The situation
A 600-module carport array is a different engineering problem than a residential roof job — structural load calculations for a purpose-built carport structure (not an existing roof), a county AHJ with its own submission quirks, and a scale where a single rejected detail costs real time across the whole project, not just one homeowner's schedule.
What shipped
A complete commercial plan set — structural engineering for the carport mounting system, electrical design for 600 modules, PE-stamped for California — delivered in 12 business days, in line with the Enterprise tier's custom-SLA structure rather than a fixed small-project timeline.
Why it matters
This is the project to point to when a commercial developer or larger installer asks "have you done anything at scale, or is this mostly small residential jobs?"
Fast-Turnaround Residential + Powerwall
The situation
Austin Energy has its own specific interconnection requirements distinct from the rest of Texas, and a homeowner adding battery storage to a relatively modest 6.8 kW system still needs the same rigor as a much larger project — NEC 706 compliance doesn't scale down just because the system does.
What shipped
A residential plan set with Powerwall 3 integration, PE-stamped and structured for Austin Energy's specific interconnection process, turned around in 2 business days — near the fast end of the published 2–3 day residential SLA.
Why it matters
This is the project to point to when someone asks "you say 2–5 days, but does that actually happen?" — it's not an aspirational number, it's a shipped project.