top of page
Licensed in AZ, CA, CO, HI, IL, KY, NV, OR, PA, TX, UT, VA (and more on request).


BLOG
All Posts


Panel Upgrade Permit Requirements: What Your AHJ Actually Wants to See
If you're pulling a 200A or 400A service upgrade and keep getting red-lined at plan check, the problem usually isn't your installation — it's the drawing package. AHJs have gotten more specific about what PE-stamped submittals need to include, and a one-page riser with a load calc thrown in isn't cutting it anymore. Here's what a complete panel upgrade permit package looks like and why each piece matters. Why PE Drawings Get Red-Lined on Service Upgrades Most rejection notes
Matthew Lohens
7 days ago4 min read


What Electrical Contractors Need to Know About Electrical Plan Review
If you've ever had a permit application bounce back from the AHJ with a correction notice, you already know how costly electrical plan review can be — not because the fee is high, but because the delay is. A rejected set of drawings can push a project schedule back by weeks, trigger GC penalties, and create friction with clients who expect permits to be a contractor's problem to solve, not theirs. This guide breaks down how electrical plan review works, what reviewers are act
Matthew Lohens
May 265 min read


Do I Need a Permit to Install an EV Charger? (Residential vs. Commercial)
Short answer: yes. If you're installing a Level 2 or DC fast charger, you need a permit. Full stop. The only gray area is a 120V Level 1 outlet pulling off an existing circuit — and even then, if the outlet is new, you're probably pulling a permit. Here's what you actually need to know before you schedule the rough-in. Level 2 and DCFC Always Require a Permit A Level 2 charger (240V, typically 30–80A) is a new electrical circuit. Any new circuit means a permit. That's NEC 210
Matthew Lohens
May 204 min read


Commercial Electrical Permit Drawings: What Contractors Actually Need to Know
You won the bid. You've got the materials specced. Your crew is ready. But the building department wants engineered electrical drawings before they'll issue the permit, and now your timeline is on hold. If you're an electrical contractor dealing with commercial permit drawings for the first time, or if you've been through the process before and gotten burned with corrections that added weeks to your schedule, this post is for you. I'm going to walk through what AHJs actually
Matthew Lohens
May 207 min read


How to Pull a Commercial EV Charger Permit: A Contractor's Step-by-Step Guide
If you've started bidding commercial EV charger installations, you already know the permit process can be a moving target. Requirements vary by jurisdiction, utilities move slowly, and one missing document can stall a job for weeks. This guide walks you through exactly what a commercial EV charger permit package needs to contain, where contractors most commonly get rejected, and how to move through the process efficiently — whether you're in California, Texas, Colorado, Nevad
Matthew Lohens
Apr 197 min read


The NEC 1.25 Continuous Load Factor
Why Your PE Keeps Flagging the 1.25 Factor (And Why the Meter Reading Doesn't Settle It) If you've done electrical work on facilities with large continuous loads, you've probably had this conversation: "The breaker is rated for 800 amps. We measured the feeder at 330 amps. Why is the engineer telling me I'm overloaded?" It comes up constantly, especially on indoor cultivation, data centers, and commercial lighting projects. And I get it. From a contractor's perspective, the m
Matthew Lohens
Apr 93 min read


Why Most Electrical Permit Drawings Get Rejected — And How to Fix It
Published by MHL Consulting | mhlconsulting.co If you've ever waited weeks for a permit only to get a correction letter back from the building department, you're not alone. Across the country, it is remarkably common for electrical permit packages to require at least one round of revisions before approval. Some jurisdictions openly acknowledge that applications "rarely meet all code requirements in the first round of reviews." But here's the thing — the reasons drawings get s
Matthew Lohens
Apr 16 min read


Planning-Grade Battery Derating by Temperature & DoD
Why we built a simple, defensible method for a TBB M12 LiFePO₄ project—and who else needs it The client problem (common in the wild) Our...
Matthew Lohens
Sep 23, 20253 min read


Choosing a NEC Compliant PV System Interconnection Point in an Existing Electrical Distribution System
When it comes to choosing an interconnection point for your PV system, it may be tempting to connect to the nearest electrical...
iamahmed1789
Feb 21, 20232 min read


Choosing the Right EV Charger for Your Business: A Guide to the Different Types, Costs, and Income Potential
As more consumers adopt electric vehicles (EVs), the demand for charging infrastructure is growing. As a business owner, investing in EV...
iamahmed1789
Feb 11, 20233 min read


Cash Rebates for Installing Electric Vehicle Charging Stations in Utah: A Guide for
As the popularity of electric vehicles continues to grow, the demand for charging stations is also increasing. In an effort to encourage...
iamahmed1789
Feb 10, 20232 min read


When to Invest in a Battery Backup System: A Technical Guide
In today's world, electricity is a vital component of our daily lives. From powering our homes to keeping our businesses running, it's...
iamahmed1789
Feb 10, 20232 min read


Making the Most of the National Electric Code: Tips and Tricks
The National Electric Code (NEC) is a comprehensive set of guidelines and standards for electrical installations in the United States. It...
iamahmed1789
Feb 4, 20232 min read


National Electric Code (NEC) Compliance of Busway Lighting Systems: A Deep Dive
If you are involved in electrical systems design and installation, then you are well aware of the importance of compliance with the...
iamahmed1789
Feb 2, 20232 min read


Why Investing in Green Technologies is a Smart Choice for Your Business: The Benefits of Sustainability for Your ROI
In today's business world, it's not just socially responsible, but also smart business to incorporate green technologies into your...
iamahmed1789
Jan 17, 20232 min read


Net-Zero Carbon Emissions: How Businesses and Individuals Can Make a Difference
Net-zero carbon emissions refer to the balance between the amount of carbon emissions produced and the amount removed from the...
iamahmed1789
Jan 15, 20232 min read


Most common NEC Violations
The National Electric Code (NEC) is a set of safety guidelines for electrical systems and installations. It is updated every three years...
iamahmed1789
Jan 14, 20232 min read


What are the best states for solar?
The United States is home to some of the best states for harnessing the power of the sun through photovoltaic (PV) solar energy. With...
iamahmed1789
Jan 13, 20232 min read


Designing a battery backup system
A battery backup system is an essential component in any electrical design, especially in critical applications where power outages can...
iamahmed1789
Jan 12, 20232 min read


What is a Coordination summary?
A coordination summary is a document that outlines the protective devices and settings used in an electrical system, and how they are...
iamahmed1789
Jan 7, 20232 min read
bottom of page
.png)