Preparing and managing your portable generator during a storm

As storm season approaches, ensuring that your portable generator is ready can be a lifesaver. Portable generators provide crucial backup power during outages but require careful handling to ensure safety and efficiency. This article guides you through preparing, operating, and safely managing your portable generator during a storm. 

Environment

This article applies to general portable generator storm preparedness. 

 

Preparation before the storm

1. Check and charge the battery (if applicable) 

Ensure the generator's starter battery is fully charged. A well-charged battery is essential for starting the generator, especially in cold weather. Portable generator battery charging guidelines vary by model. To review specific charging guidelines for your portable device, see your owner's manual. Where can I download a user manual for my Generac portable generator?

2. Perform a test run. 

Conduct a test run to ensure the generator operates smoothly, and check for any unusual noises or vibrations. See our portable troubleshooting guide for help addressing any issues here Portable generator troubleshooting guide

3. Inspect and maintain. 

Regularly inspect the generator for any wear and tear.

• Replace worn-out or damaged parts. 
• Check oil levels. 
• Ensure air filters are clean and replace them if required. 
• Ensure the spark plug is good. 

4. Have an adequate supply of fresh fuel stored in a safe location.

• Use approved fuel containers to avoid moisture contamination.
• Use a fuel stabilizer. 

5. Placement 

• Set up the generator a minimum of 20 feet from any doors, windows, vents, or other openings into the home.

6. Review operational procedure

Starting operation 

1. Ensure safety first - Before starting the generator, double-check that it is placed in a well-ventilated area to avoid carbon monoxide buildup. 
2. Verify that the engine oil level is correct. 
3. Verify fuel level is correct. 
4. Verify that the unit is secure on level ground. 

Note: Operational procedures may vary by model. See the owner's manual for model-specific operational steps here Where can I download a user manual for my Generac portable generator?
 

7. Inspect extension cords for damage.

• Never use frayed or defective extension cords, as they may cause electrocution. Always be sure the extension cord is sized appropriately for the appliance. 

Operating the generator during a storm

IMPORTANT: Operating a generator in wet conditions can be extremely hazardous and is strongly advised against. Never run a generator directly in the rain, snow, or any other wet conditions.

Note: For carbon monoxide (CO) safety, always operate the generator outdoors in an open area. Never use it inside homes, garages, or enclosed spaces. 

1. Monitor operation
 

• Never allow the unit to run out of fuel while supporting a load. Doing so can damage the unit and/or any connected loads. 
• Regularly check the generators for warning signs 
• Keep the generator dry and out of the rain. 

2. Electrical safety 

• Only use outdoor-rated extension cords of an amperage equal to or greater than the rated amperage of the appliance being powered. 
• Ensure the total amperage of all devices does not exceed the rated amperage of the receptacle being used or the capabilities of the generator. 
   

3. Periodic Shutdowns

• During prolonged, continuous operation, the generator must be shut down to perform maintenance checks and refuel.

Note: Every 8 hours, the portable generator must be shut down for a minimum of 30 minutes.  

4. Refueling safety 

• Always shut down the generator before refueling. Always disconnect any loads from the generator before shutting it down. 

5. Shutting down the generator

1. Remove all loads from the generator before shutting down. 
2. Cool Down - Allow generator to run without a load for a few minutes to stabilize internal temperatures before shutting down. 
3. Place the generator in the OFF position. 
4. Turn the generator fuel valve OFF (if equipped). 

6. In case of an emergency, it is permissible to run the generator under an overhang, carport, or covered area as long as 

1. All four sides are open
2. 5 feet of clearance from the top of the unit