An off grid solar system is a standalone power solution that operates independently from the utility grid. It relies on solar panels, solar battery(gel battery or lithium battery), and hybrid inverter to provide electricity in remote locations or areas with unreliable grid access.
This guide explores the key components, design considerations, and benefits of setting up an efficient off grid solar power system.
Key Components of an Off Grid Solar System
1. Solar Panels
Solar panels capture sunlight and convert it into electricity. For an off grid solar system, high-efficiency monocrystalline solar panels(such as 550W/600W solar panel) are recommended to maximize energy production.
2. Solar Batteries (Gel Batteries/Lithium Battery)
Solar storage system stores excess energy for use during nighttime or cloudy days. Common battery types include:
Gel Batteries (Affordable but no longer the best choice now)
Lithium-Ion Batteries (Longer lifespan, higher efficiency, BMS protection)
3. Hybrid Inverter
Hybrid inverter converts DC electricity from solar panels and batteries into AC power for household appliances, with an MPPT function.
How to Design Off Grid Solar System?
1. Calculate Your Energy Needs
- List all appliances and their power consumption (watts).
- Estimate daily usage (watt-hours) to determine system capacity.
Daily use hours (unit: h). Example:
Refrigerator: 200W, 24-hour
LED lights: 10W * 4 pieces, 5 hours of daily use
Total daily power consumption: = Σ (power × duration) = 200 * 24 + 10 * 4 * 5 = 4800 + 200 = 5000Wh (5kWh)
2. Determine Solar Panel Requirements
- Consider peak sunlight hours in your location.
- Size the solar panel array to meet daily energy demand.
Example:
The average daily effective sunshine in a certain area is 4 hours (i.e., the length of time when the solar irradiance is ≥800W/m2). The longer the sunshine, the higher the power generation capacity of the solar panels and the lower the number of modules required.
3. Choose the Reliable Solar Battery
Select solar battery capacity based on the days about solar system should run without sunlight.
Lithium battery is the best choice for long-term reliability(WHC SOLAR lithium battery).
Benefits of Off Grid Solar System
- Energy Independence
No reliance on the utility grid, making it perfect for remote areas. - Lower Electricity Bills
Once installed, solar power is free, reducing long-term energy costs. - Environmentally Friendly
Reduces carbon footprint by using clean, renewable energy. - Reliable Power Supply
With a well-designed solar storage system, you’ll have power even during outages.
7. Why cooperate with WHC SOLAR?
WHC SOLAR has manufactured solar products and has been deeply involved in the overseas market for 16 years. Majored in Complete Set Configuration Solution in Solar Panels, Inverters and Lithium Batteries, Gel Batteries and Water Pump Supply Services. We have delivered over 3000+ solar system case covers residential and commercial solar solutions.
WHC SOLAR To Help 300+ Agents Succeed in Their Solar Business Career!
For detailed technical specifications or certification details, refer to https://www.whcsolar.com/residential-solar-system/
