Why Solar Permits Get Rejected — and What It Costs You
Nine causes account for most solar permit rejections. Here’s each one, the code behind it, and a framework for what a rejection really costs you.
Generator Permit Plans: NEC Load Calcs, ATS and Setbacks
AHJ-ready standby generator plan sets: NEC 2020 220.82 load calcs, Article 702 transfer equipment, ATS placement, PV and battery interaction.
Level 2 EV Charger Installation Plans & Permit Drawings
EV charger permit plans under NEC 2023 Article 625: Level 2 circuit sizing, 220.87 load calcs, service-upgrade triggers and AHJ-ready plan sets.
Solar Plan Set Process Explained
How an installer’s intake package becomes an AHJ-ready solar plan set in 2-3 business days, with an independent senior-designer review before delivery.
Texas Solar Plan Sets: NEC Cycles, AHJs and Interconnection
Texas solar plan sets built to the adopted NEC cycle, with named AHJ submittal rules for Houston, Dallas, San Antonio and Austin plus utility interconnection.
Are You Getting the Best Solar Plan Sets? How to Judge Solar Plan Set Quality
How to judge solar plan set quality: the concrete cross-checks installers can run on any package to catch solar plan set errors before it reaches the AHJ.
Outsourced Solar Design vs In-House: The Real Comparison
Outsourced solar design vs an in-house drafter: how throughput, revision cycles, and NEC code cycles actually compare, with a decision table for installers.
The Solar Permitting Process: Every Stage, Start to Finish
The solar permitting process stage by stage: site data, design, plan set, submittal, plan check, corrections, inspection and utility interconnection sign-off.
PV Disconnect Placement: NEC 2017 vs. NEC 2023 Requirements
NEC 2023 690.12 rapid shutdown uses the same numbers NEC 2017 set: a 1-foot array boundary, 30 volts outside it and 80 volts inside it, both within 30 seconds. The physics hasn’t moved since 2017 — what changed is where the marking rule lives, plus a new exception for carports and other detached structures. If […]
Rule 21 for Solar: Who It Binds and What Goes on the Plan Set
Rule 21 binds California’s six investor-owned utilities, not SMUD or LADWP. What UL 1741 SB actually requires, and what has to appear on your solar plan set.