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How To Get a Solar Permit: Solar Panel Permit Requirements
Learn what AHJs require in a solar permit package, what drives permit costs and delays, and how professional solar permitting services help installers reduce soft costs and move projects faster.
Sarah Lozanova
4 hours ago
2023 NEC Solar Code Guide for Installers
A practical guide to the 2023 NEC solar code for installers, covering Article 690, rapid shutdown, labeling, source connections, grounding, ESS, and the permit details that can prevent redlines.
Sarah Lozanova
8 hours ago
Residential Solar Permitting Times by State: 2024 Data
How long does it take to get a solar permit? We studied the states with the fastest and slowest solar permitting & interconnection times.
Team GreenLancer
20 hours ago
Solar Panel Wiring Diagrams & Guide for Installers
A huge part of any solar project is how to wire the solar panels. Explore our guide on solar panel wiring to learn best practices.
Team GreenLancer
1 day ago
Solar Racking & Mounting Systems Guide for PV Installers
Learn how to choose the right solar racking systems for residential, commercial, and ground mount projects, including UL 2703 rules, structural loads, costs, installation best practices, and top manufacturers.
Sarah Lozanova
1 day ago
Solar Energy Diagram Guide: System, Wiring & SLD Guide
An installer guide to solar energy diagrams: the single line, interconnection, wiring, and storage diagrams that make up a permit-ready plan set, plus NEC 690 code details and common review rejections.
Sarah Lozanova
1 day ago
Solar Shingles vs Solar Panels: Cost, Efficiency & Pros and Cons
Solar shingles or solar panels? Compare 2026 costs, efficiency, lifespan, and looks, and see which options remain after Tesla discontinued its Solar Roof.
Sarah Lozanova
2 days ago
What Is an AHJ in Solar? Permits, Requirements & Inspections
What an AHJ is in solar, who the AHJ is for a project, what AHJs review in a permit application, how AHJ inspections work, and how AHJ approval differs from utility PTO.
Sarah Lozanova
2 days ago
SDG&E Rule 21 Interconnection: 2026 Guide for Solar Installers
A technical guide to SDG&E Rule 21 interconnection, covering DIIS submissions, Fast Track reviews, common denial reasons, SLD requirements, fees, corrections, and PTO timelines.
Sarah Lozanova
3 days ago
Solar PE Stamping Services: Wet Stamp & Permit Guide
PE stamping services explained for solar installers — what a wet stamp means, when you need a structural or electrical engineer stamp, and how to get your solar PV permit package approved.
Team GreenLancer
3 days ago
Ground Mount Solar Design for Installers: Structures, Racking & Foundations
Ground mount solar design requires resolving structure type, racking, foundation method, and array layout before permitting begins. This guide covers every design decision for installers.
Sarah Lozanova
3 days ago
Solar Engineering Requirements for PV Permits: Installer Guide
Solar engineer requirements vary widely by location and project. Learn how to meet permit requirements while keeping projects on budget.
Sarah Lozanova
3 days ago
PG&E Rule 21 Interconnection: Application & Rejection Guide 2026
A 2026 guide to the PG&E solar interconnection process for residential and light commercial installers, covering Rule 21, Your Projects, SLDs, deficiency notices, and PTO.
Team GreenLancer
3 days ago
Solar Licensing Requirements by State for Contractors
See which solar contractor license you need in every state, how licensing differs from a NABCEP certification, and what's changing for Texas solar sales starting September 2026.
Sarah Lozanova
4 days ago
Solar Energy Trends 2027: U.S. Solar Industry Growth & Market Outlook
A data backed look at 2027 solar energy trends, covering market growth by segment, storage, tax credit changes, FEOC and PFE rules, domestic manufacturing, and what it means for installers.
Sarah Lozanova
6 days ago
How to Create a Solar Sales Proposal: Template & Checklist
A 2026 guide for solar installers on creating accurate solar proposals, including quotation format, ROI, incentives, timelines, equipment specs, software, and proposal mistakes to avoid.
Team GreenLancer
6 days ago
California Solar Mandate 2026: Title 24 Requirements
California's 2025 Title 24 code changed PV and battery sizing for new construction. This guide covers the formulas, battery-ready rules, ADU treatment, and permitting for installers.
Sarah Lozanova
6 days ago
Solar Abbreviations, Acronyms & Terms: Complete Solar Glossary
A complete solar glossary covering PV, electrical, permitting, performance, and finance abbreviations and acronyms, including solar full form, for installers and professionals.
Team GreenLancer
6 days ago
Solar Plus Storage: Installer's Guide to to PV + Battery Systems
An installer guide to solar plus storage: AC vs DC coupling, kW vs kWh sizing, backup design, peak shaving, permitting, interconnection, and 2026 incentives.
Sarah Lozanova
7 days ago
NEM 3.0 California: Net Billing Rules, Export Rates & 2026 Updates
A 2026 guide to California's NEM 3.0 Net Billing Tariff for solar installers, covering export rate mechanics, NEM 2.0 grandfathering and expansion rules, utility-by-utility breakdowns, Rule 21 requirements, and the tariff's current legal status after the June 2026 Supreme Court ruling.
Sarah Lozanova
Sep 17
GreenLancer solar blog
The Renewable Energy Blog
The GreenLancer blog delves into the latest trends and insights in renewable energy, offering information and inspiration for solar energy and electric vehicle charging station (EVCS) contractors. Our commitment is to provide accurate information, supported by meticulous analysis and reliable clean energy sources, including government agencies, renewable energy experts, research institutions, and our in-house expertise, from over a decade in the clean energy industry.
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