The short answer
Have flood exposure assessed as part of the complete backup system, not only the generator’s position. Transfer equipment, electrical distribution, fuel components and access can also be affected. A qualified project team must establish the appropriate design and applicable local requirements for the property.
General guidance, not installation, repair, engineering or legal instructions. Confirm equipment-specific and current local requirements with the appropriate professional.
Share the history of the site
Tell the designer about known flooding, standing water, basement water entry and drainage changes. Provide existing surveys or flood-related documents if you have them, identifying anything that is only anecdotal. Do not assume a coastal address always has the same risk, or that an inland address has none.
Review the connected equipment
FEMA’s utility-protection guidance considers how floodwater can affect building systems and equipment. Ask the project team to review the generator together with its connected electrical and fuel components. A raised engine alone does not establish that the complete system will remain usable or safely accessible during a flood.
Include the after-storm decision
Plan who assesses the property when flooding has occurred and how occupants will obtain help. Keep out of floodwater around electrical equipment. Do not restart or approach affected equipment on the assumption that dry-looking exterior surfaces mean it is safe; have the appropriate professionals evaluate the condition first.
Put it into practice
Questions for a flood-aware assessment
- What known site history and official property information should be reviewed?
- Which electrical and fuel components share the exposure?
- How will normal maintenance and post-storm access work?
- Who confirms design requirements and evaluates flooded equipment?
Is there one mounting height that works for every local property?
No universal height is provided here. Site conditions, equipment and applicable requirements need professional assessment. Ask for the basis of the proposed design rather than copying the height of a nearby installation.
Sources & further reading
Primary references for this topic. These inform general guidance; they do not approve a particular installation, establish a warranty claim or define our service agreement.
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