Technical FAQs 4

What is inverter efficiency?

In simple terms, inverter efficiency refers to how well an inverter converts DC electricity into usable AC power. No inverter is 100% efficient—some energy always gets lost as heat during the conversion. Most modern inverters have efficiency ratings between 90% and 98%. Let’s break it down:

Why does a 92% efficiency solar inverter matter?

Here's why it matters: Let’s say you have a 5kW solar system and you’re using an inverter with 92% efficiency. That means you’re only getting 4.6kW of usable power. Compare that with an inverter that has 97% efficiency—you’d be getting 4.85kW. Over a year, that difference becomes hundreds of kilowatt-hours.

Why does a storage system have a small inverter?

Let's assume that the inverter of the storage system is slightly smaller so that the house consumption, which rarely has high power peaks, runs as often as possible at optimum efficiency. The storage system's inverter therefore frequently runs with a high load and therefore close to the optimum range.

How does a storage system lose energy?

They pass through cables, electrical components (such as inverters), and finally through the batteries of your storage system. At each obstacle or resistance, they release a small amount of their energy – this is when conversion losses occur, similar to the way people lose energy when overcoming obstacles.

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