
Why Solar Projects Stall and How Better Engineering Prevents It
Stalled projects are the bane of every developer's existence. Most stalls can be traced back to engineering oversights that weren't caught until it was too late.
The True Cost of a Stalled Project
When a project stalls, the costs aren't just financial. You lose momentum, you lose trust with your stakeholders, and you lose the window of opportunity that made the project viable in the first place. For a typical 1MW commercial project, every month of delay can cost upwards of $15,000 in lost revenue and carrying costs.
Common Engineering Failure Points
1. Incomplete Site Data
Engineering based on assumptions rather than field-verified data is the leading cause of redesigns. If the roof structural capacity or the electrical service gear rating isn't confirmed early, the entire design may need to be scrapped when the reality hits the job site.
2. Ignoring Local AHJ Nuances
A design that passes in one county might be rejected in the next. AHJs (Authorities Having Jurisdiction) have specific interpretations of the NEC and local amendments. A firm that doesn't research these upfront is setting the project up for a stall at the permit desk.
3. Poor Utility Coordination
Interconnection is often the longest lead time item. If the engineering package doesn't meet the utility's exact technical requirements for the application, you're looking at months of back-and-forth that could have been avoided with a more rigorous initial submittal.
How Better Engineering Keeps Projects Moving
Better engineering isn't just about faster drawings; it's about front-loading the thinking. At Jolt, we focus on:
- Pre-Design Kickoffs: Identifying constraints before a single line is drawn.
- Jurisdiction Research: Mapping AHJ and utility requirements as a standard part of our scope.
- Constructability Reviews: Ensuring the design can actually be built by the crews in the field.
By investing in higher-quality engineering upfront, you're not just buying a plan set—you're buying schedule certainty. Project stalls are not inevitable; they are the result of engineering choices. Avoiding these stalls is the key to preventing rework and protecting your ROI.
Ready to keep your projects on track? See how our services can help, or book a call to discuss your next project and ensure your Arizona commercial solar project stays on schedule.

Founder & Principal of Jolt Engineering. 17+ years in commercial solar. Spent a decade on the EPC and client side before founding Jolt in 2017 to solve the problems he experienced firsthand.


