What Size Solar Generator Do I Need for My House?
Choosing the right solar generator for your home is critical for emergency preparedness. The wrong size could leave you powerless during a critical outage. This guide breaks down the exact calculations you need to make the right choice.
Interactive Sizing Calculator
HVAC systems can double your energy consumption. Only check if you need to run AC or heating.
Your Requirements
Recommended Setup
You need approximately 9 EcoFlow Delta Pro units (3,600Wh each) to meet your 3-day backup requirement.
Shop Solar Generators →Essential Appliances & Their Power Needs
| Appliance | Running Watts | Daily Energy | Priority |
|---|---|---|---|
| Refrigerator | 150W | 1,800 Wh | Essential |
| Freezer | 100W | 1,200 Wh | Essential |
| LED Lighting (5 bulbs) | 30W | 150 Wh | Essential |
| Wi-Fi Router | 20W | 480 Wh | High |
| Phone Charger | 10W | 20 Wh | High |
| Laptop | 65W | 260 Wh | High |
| Microwave | 1000W | 500 Wh | Medium |
| TV | 100W | 400 Wh | Medium |
| Coffee Maker | 800W | 400 Wh | Medium |
| Well Pump | 750W | 1,500 Wh | If applicable |
| CPAP Machine | 60W | 480 Wh | If applicable |
| Portable AC | 500W | 3,000 Wh | Optional |
How to Determine Your Requirements
Step 1: Calculate Your Daily Energy
Add up the daily energy consumption of all appliances you need to power:
Step 2: Add Safety Margin
Add 20-30% buffer for:
- Surge power at startup
- Battery degradation over time
- Unexpected extended usage
- Cold weather performance reduction
Step 3: Multiply by Backup Days
Total Required = Daily Energy × Backup Days
Step 4: Choose Your System
Divide total by generator capacity to determine how many units you need:
Recommended Systems by House Size
Small House
Essential appliances only
Medium House
Essential + comfort appliances
Large House
Full home backup
Get Your Exact Solar Generator Size
Use our free solar sizing calculator for personalized recommendations.
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