Outage planning guides
Small Generator Outage Plan
A small generator works best when it supports a focused list of essentials instead of trying to recreate normal household power use.
Use this guide before choosing or operating a small portable generator for short outages, storm recovery, or rural backup needs.
Suggested loads
| Load | Watts | Priority | Note |
|---|---|---|---|
| Refrigerator | 120-200 running watts | critical | Generator surge rating must handle compressor startup. |
| Phones and chargers | 5-50 watts total | critical | Small, high-value loads should be easy to include. |
| LED lights | 10-60 watts total | useful | Efficient lighting leaves more capacity for motor loads. |
| Router and modem | 15-40 watts | useful | Use surge protection where appropriate and avoid wet locations. |
| Microwave or coffee maker | 700-1,500 watts | optional | Run short high-draw loads one at a time if capacity allows. |
Planning steps
- Add running watts for loads that will operate at the same time.
- Check surge requirements for refrigerators, pumps, and other motors.
- Plan a fuel and runtime schedule instead of running continuously by default.
- Use rated outdoor extension cords or approved transfer equipment.
- Keep a battery or power bank for quiet overnight phone and light use.
Example plan
- Duration
- 24 hours
- Estimated energy
- Generator output depends on runtime; a lean essential load may average 500-1,500 watts while running
- Battery note
- A battery can cover overnight quiet hours and reduce generator runtime for small electronics.
- Generator note
- A 1,500-3,000 watt generator can often support selected essentials, but exact capacity depends on surge rating and simultaneous loads.
- Solar note
- Solar can recharge batteries between generator runs, but it does not replace generator surge capacity for motor loads.
Mistakes to avoid
- Running a generator indoors or too close to the home.
- Plugging in every appliance because outlets are available.
- Ignoring fuel consumption at partial and higher loads.
- Backfeeding home wiring without approved equipment.
Safety and limits
- Operate generators outdoors, away from doors, windows, vents, and enclosed spaces.
- Follow the generator manual for grounding, fueling, maintenance, and load limits.
- Permanent or transfer-switch connections should be handled according to local code by qualified professionals.
FAQ
What can a small generator run during an outage?
Often a refrigerator, lights, chargers, and some electronics, plus one short high-draw load at a time if the generator is sized for it.
Can I run a generator all night?
That depends on the generator, fuel, noise rules, and safety conditions. Many households use a battery for quiet overnight essentials.
Related calculators
Generator Wattage CalculatorEstimate running watts, starting surge, and a practical generator size for selected backup loads.Home Outage Backup PlannerPlan 24, 48, or 72 hour backup needs for critical home loads using battery and generator estimates.Portable Power Station Runtime CalculatorEstimate how long a portable power station can run a load after efficiency losses and reserve.