Wrong Inverter Sizing Can Delay ROI by 1 Year
In most solar EPC projects , people focus heavily on panel price, total project cost, or subsidy , but one of the most critical engineering decisions is often ignored Inverter Sizing . A wrong inverter sizing decision may not look like a big issue at the start, but in reality, it can directly impact your generation, efficiency, and ROI . In fact, improper inverter sizing can delay your ROI by 1 year or even more. Let’s understand how. 1. What is Inverter Sizing? Inverter sizing means deciding: How much DC capacity (solar panels) should be connected to how much AC capacity (inverter) This is usually expressed as a DC/AC ratio . Example: 350 kW DC panels connected to 300 kW inverter DC/AC ratio = 1.16 This ratio is not random, it is a core engineering decision . 2. Why Inverter Sizing is Critical in Solar Engineering The inverter is the heart of the solar system . It converts DC power from panels into usable AC power. If sizing is wrong...