OneLine Studio — AI solar permit design & one-line diagrams
OneLine Studio is AI permit-design software for residential solar installers. Describe a solar + battery system in plain English and get a permit-grade one-line (single-line) diagram, live NEC code checks (690.7, 690.8, 705.12, 706), a NEC 220.82 service load calculation, a scaled site plan, structural and production simulations, and a sealed 10-sheet permit-ready package — with a scan-to-verify Design Seal. Free to start.
Free resources:
- Solar permit requirements by state & city — enforced NEC code, fire setbacks, wiring method and wind/snow design criteria for 44 US jurisdictions.
- NEC reference tables & solar calculators — 310.16 ampacity, 240.6 breaker sizes, 250.122 EGC, 250.66 GEC, 690.7 string sizing, 690.8 conductor sizing, and the 705.12 120% busbar rule.
- Solar permitting & NEC design blog — 100+ plain-English articles on rapid shutdown, the 120% busbar rule, string sizing, plan-check corrections, batteries and equipment.
- Watch the product demo · See the whole product in 30 seconds
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