Off-Grid or Hybrid? How to Choose a Home Solar + Battery System

When choosing a home solar + battery system, the first step is to decide whether you need a Hybrid or Off-Grid system.

The main difference is simple: Hybrid works with the utility grid, while Off-Grid is designed to operate independently from the grid.

1. Hybrid or Off-Grid?

Hybrid Solar System

A Hybrid system combines solar panels, battery storage, and the utility grid.

Solar power supplies the home during the day and charges the battery. When solar and battery power are insufficient, the grid can provide additional electricity.

Suitable for:

• Homes with grid connection
• Reducing electricity bills
• Backup during power outages
• Areas with an available but unstable grid

Configuration:
Solar PV + Hybrid Inverter + Battery + Grid + Home Loads

Off-Grid Solar System

An Off-Grid system operates independently from the utility grid. Solar and batteries are the main sources of electricity, and a generator can also be added as backup.

Suitable for:

• Homes without grid access
• Remote houses and villas
• Farms and rural areas
• Areas with extremely unreliable grid power

Configuration:
Solar PV + Inverter + Battery + Home Loads

2. How to Size the System?

A residential solar + ESS is mainly determined by four factors:

Daily Consumption (kWh) → How much electricity you use every day
Maximum Load (kW) → Determines the inverter power
Backup Time (Hours) → Determines the battery capacity
Local Solar Conditions → Helps determine the required PV capacity

3. What Information Do We Need?

To recommend the right system, simply provide:

Country / Location
Electricity Bill or Daily Consumption
Maximum Load
Required Backup Time
Grid Voltage and Phase

Based on this information, KOODSUN can recommend a suitable Solar PV + Inverter + LiFePO4 Battery solution.

Planning Your Home Solar + ESS?

Send us your basic electricity requirements, and our team will help you select a suitable solar + battery system for your home.