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Solar Panel Racking Systems: Types & Installation Guide
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
23 hours ago
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
5 days 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
6 days ago
How Much Does a Solar Permit Cost? 2026 Fees & State Caps
Home and business owners want the benefits of solar power without the hassle of navigating solar permitting red tape.
Sarah Lozanova
6 days ago
Solar Plan Sets: What's Included & 7 Common Mistakes
PV plan sets are the foundation of solar permitting. Learn what solar plan design includes—layouts, schematics, diagrams, and drawings—for safe, code-compliant installs.
Sarah Lozanova
6 days ago
Solar Leads: How to Buy, Generate, and Convert Them
Should you buy solar leads or generate your own? Compare lead types and pricing, vet lead generation companies, qualify prospects, and calculate cost per installed customer.
Sarah Lozanova
Oct 9
Solar Panel Damage & Defects: Signs, Causes & What to Do
Learn how to identify solar panel defects, corrosion, hot spots, cracks, PID, diode failures, and abnormal degradation, plus how one failing module can affect system production.
Sarah Lozanova
Oct 7
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.
Sarah Lozanova
Oct 6
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
Oct 1
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
Sep 30
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
Sep 29
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
Sep 29
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
Sep 28
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
Sep 28
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
Sep 28
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
Sep 28
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
Sep 28
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
Sep 28
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
Sep 25
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
Sep 25
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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