Generators may operate during testing, maintenance, grid outages, and emergency exercises. A permit or operating plan should distinguish routine testing from emergency operation.
The important details are number of units, fuel type, testing schedule, emissions limits, and notice requirements.
What to verify locally: Find the relevant air permit and ask a project-specific question.
Generator basics
Use original public records whenever possible. A developer statement can explain an intent; an approval, permit, or utility filing is where enforceable details are more likely to appear.
Permit checklist
Record the date, document title, agency, page number, and project address. That turns a claim into something another reader can check.
Evidence standard: this guide avoids treating a proposal as a completed project, and avoids treating a missing record as proof that no impact exists.