A new kind of electrical scope gap is showing up on commercial bids. It is not a missing panel. It is not a mislabeled circuit. It is an entire code requirement that never made it onto the drawings. EV-ready infrastructure for commercial parking. PV readiness provisions for rooftop solar. Local energy code amendments that went into effect six months ago. The engineer didn’t draw them. The specs don’t mention them. And the estimator who trusts the print set is about to eat the cost.
Jurisdictions across the country are adopting EV-ready parking mandates for new commercial construction. California has had them for years through CALGreen. Cities and counties in Colorado, Washington, Oregon, New York, and dozens of other states are now writing their own versions into local amendments.
These mandates typically require a percentage of parking spaces to be “EV-ready” at minimum. That means conduit pathways, panel capacity, wire sizing, and reserved load capacity installed during construction, even if no charger goes on the wall for another five years.
The problem is that many engineers are still not including this work on the electrical drawings. They are working from templates. They are copy-pasting spec sections from the last project. They are referencing the version of the energy code they are familiar with, not the one the jurisdiction actually adopted.
So the E-sheets come out clean. No EV infrastructure shown. No PV readiness provisions. No mention of the local energy code amendment that requires both. An estimator opens the set, sees nothing about EV charging, and prices accordingly. That estimator just created a scope gap worth tens of thousands of dollars.
EV-ready is not the same as “EV-installed.” The code typically requires the rough infrastructure to be roughed in during construction, even when the chargers themselves come later. On most commercial projects that means:
Almost none of that costs much during rough-in. Almost all of it costs a fortune after drywall.
One contractor recently uploaded a 400-page commercial print set into an AI-powered document review tool. He was still early in the bid process and had not read through the full package yet. The review flagged four things that were completely absent from the drawings:
None of these items appeared on the prints. None of them were called out in the specs. But all of them were required by the authority having jurisdiction. If that contractor had bid the job as drawn, he would have won it with a number that did not account for any of that work. And when the inspector showed up, it would have been his problem.
It is tempting to chalk this up to bad engineering. The real issue is structural. Energy codes and electrical codes are maintained by different bodies. The IECC, ASHRAE 90.1, and state-level energy codes are where EV-ready and PV-ready mandates live. The NEC is where most electrical engineers spend their time.
When a jurisdiction adopts a new energy code amendment, it does not automatically show up in the engineer’s drawing template. Somebody has to manually cross-reference the local amendments, interpret what “EV-ready” means for that specific project type, and add it to the electrical scope. That somebody is often nobody.
The architect may not flag it because they assume it is in the electrical scope. The engineer may not flag it because it is not in their boilerplate. The GC may not flag it because they assume the engineer handled it. And the estimator is sitting at the end of this chain, pricing a set of drawings that everyone upstream assumed was complete.
Retrofitting EV-ready infrastructure after construction is dramatically more expensive than including it during the build. You are talking about trenching across a finished parking lot, upsizing panels that are already installed, and pulling wire through conduit runs that were never roughed in.
On a mid-size commercial project with a 50-space parking lot, the difference between including EV-ready provisions in the original bid and retrofitting them after the fact can be $30,000 to $80,000, depending on the jurisdiction’s percentage requirement and the distance from the electrical room to the parking structure.
PV readiness follows the same curve. The conduit pathway and panel space cost almost nothing during rough-in. After drywall, it is a different conversation. Multiply that across the volume of commercial work moving through your pipeline this year, and the scope-gap exposure compounds fast. We unpacked the broader pattern in our Where Mistakes Hide report on 15,675 flagged issues across 727 takeoffs.
The uncomfortable truth is that the drawings are no longer a reliable source for total project scope on code-driven requirements that are changing faster than engineers are updating their templates. If you are bidding commercial new construction, you need a process for checking local energy code amendments independent of what the engineer drew. That means knowing whether your jurisdiction has adopted EV-ready mandates, PV-readiness provisions, or other energy code requirements that may not appear on the E-sheets.
You have protected your number, and you have given the GC a paper trail that puts the question back where it belongs. For deeper background on the cost of catching these omissions late, see our breakdown of potential cost savings from an AI value engineering tool and the New Source Electrical case study on a $4M job won by catching a buried scope item.
Some contractors are now running their bid documents through AI-powered review tools that cross-reference the print set against local code requirements automatically. One platform built specifically for electrical, Makeoff, flags these kinds of omissions before the estimator ever starts the takeoff. It is how the contractor in this article caught the missing EV-ready, PV-ready, and energy code gaps on a 400-page set he had not finished reading yet.
Whether you use a tool or do it manually, the point is the same. The prints are not the whole story. The code is. And right now, engineers are leaving electrical scope gaps between the two that estimators are paying for.
Makeoff’s AI-powered electrical estimating platform reads your commercial print set against the code adopted by the authority having jurisdiction, so EV-ready, PV-ready, and energy code scope gaps surface before bid day, not on the inspector’s walkthrough.