Solar Inverter Sizing Guide for Maximum Efficiency | Mingch
This article explains how to calculate your inverter size, what affects it, and how to avoid costly mistakes, especially when using high-efficiency solutions like MINGCH Electrical''s
Your inverter size should match your solar array's capacity, not your electricity bill. This means your inverter doesn't need to power your entire home—it just converts whatever your panels generate. Let's say you have a 6kW solar array (twenty 300-watt panels).
The need for an inverter size chart first became apparent when researching our DIY solar generator build. Solar generators range in size from small generators for short camping trips to large off-grid power systems for a boat or house. Consequently, inverter sizes vary greatly.
This is the most critical factor in solar inverter sizing. Check the total wattage of your solar array (DC) and use it to calculate the appropriate inverter output (AC). For optimal results, a 6.6kW array typically pairs with a 5kW inverter, falling within the accepted array-to-inverter ratio of 1.15 to 1.33.
Pro Tip: For home systems and RVs, always go with a pure sine inverter to protect your investment. Combine your findings: Highest Surge: e.g., 600 W from fridge. → Recommended Inverter Size: 1,200 W minimum.
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