With rising electricity demand and growing interest in clean energy, more and more homeowners are considering installing solar power systems. Whether you want to reduce electricity bills, ensure backup power during outages, or contribute to a sustainable future, having the right solar inverter, battery, and solar panel kits is crucial for maximizing the value of your solar investment.

However, many people face confusion when selecting a solar energy storage system. Questions like “How big of an inverter do I need?”, “What battery capacity is enough?” or “How long can my system power appliances during a blackout?” are common—especially for beginners. Choosing the wrong system size can result in either insufficient power or unnecessary overspending.

Why Proper Sizing Matters

At Keqi Energy, we understand these challenges and offer an intuitive, user-friendly solar system calculator to help. By entering your actual power consumption data, our tool will recommend an optimized system setup, saving you time and avoiding costly mistakes.

With accurate system sizing:

• You gain peace of mind, knowing your devices can operate safely during outages.
• You get a clear understanding of your home’s energy needs.
• You avoid overspending on oversized batteries or solar inverters.
• You can plan for future power upgrades if needed.

How to Use the Keqi Solar System Calculator

Our calculator is designed to make system sizing quick and accessible. Just follow these simple steps:

Step 1: Select Your Appliance Load and Usage Time

Choose household appliances like refrigerators, lights, air conditioners, TVs, and more. The tool has pre-set power values, so you don’t need to manually input the wattage for each device.

Step 2: Set Backup Power Time

Specify how long you want the system to provide power during an outage (e.g., 2–4 hours). This ensures your battery and solar inverter configuration meets your real-world needs.

For example, in regions with frequent blackouts or extreme heat, you may require longer backup time to keep your air conditioner or fridge running.

Step 3: Solar Panel Configuration

Based on your appliance usage, region’s sunlight conditions, and backup time, the calculator will suggest the optimal:

• Solar inverter size
• Battery capacity (LiFePO₄)
• Number of solar panels

This gives you a complete reference to build an efficient solar system for your home.

Real-World Load Planning Tips

To minimize costs, prioritize only essential loads during backup, such as:

• Refrigerator (prevents food spoilage)
• Lighting (basic illumination at night)
• Fans or air conditioners (especially in hot climates)
• Wi-Fi router, mobile phone charging, and computer

Always size your system with real usage habits in mind and consider future expansion to avoid overload or waste.

Why Use a Solar System Calculator?

Many countries—especially in Africa, Southeast Asia, or rural areas—face frequent power shortages. A properly sized solar inverter, battery, and panel setup ensures uninterrupted electricity, long-term savings, and environmental benefits. Our solar system calculator helps you take the guesswork out of sizing and gives you the confidence to build your solar solution correctly.

Need a Custom Solution?

At Keqi Energy, we specialize in high-quality residential & commercial solar energy storage systems. With 16+ years of industry experience, we design and manufacture:

• Solar inverters（Hybrid inverter, 3 phase inverter, Split phase inverter）
• Safe, long-lasting LiFePO₄ Batteries (Battery energy storage, Portable power station）
• High- brightness solar lights (Solar street lights, Solar flood lights)

We also offer full OEM and ODM services. Whether you’re a wholesaler, installer, or startup, we support:

• Custom logo printing and branding
• Tailored product features
• Small batch orders and scalable production
• After-sales service and free remote installation support

Let Keqi Energy help power your home or your business. Contact us today for a free consultation and quotation.