Practical rule: if you're working in a new jurisdiction for the first time, assume stamps will be needed and verify whether they won't. The cost of getting it wrong runs one direction - delays and resubmissions. The cost of including a stamp on a project that didn't legally require one is minimal.

Demand charge reduction and resilience are two different design briefs - even when the hardware looks the same. This post breaks down how sizing, inverter capacity, SoC strategy, and controls change completely depending on primary use case, and why a system optimized for peak shaving will underperform in an actual outage.

Getting interconnection right the first time isn't complicated. It just requires building around the specific project, the specific utility, and the specific feeder - not a template.

If you're closing deals and then watching projects stall before they get built, the problem usually isn't the install. It's everything before it.