Can I use a 6kW solar inverter with a 7.5kw Solar System?

Let’s say you have a 6kW solar system—meaning your solar panels can generate up to 6 kW at peak sunshine. Your inverter needs to handle that much input. But it’s not always a 1:1 match. In many cases, you can “oversize” your solar panels by about 25% without any issues. That means you could use a 7.5kW solar system with a 6kW inverter.

Can I use a 6kW hybrid inverter with a solar system?

So, you can safely use a 6kW hybrid inverter with a solar system of 6–7.5kW. Just make sure your installer checks the inverter’s max DC input rating. The hybrid inverter also needs to match your battery. If you have a 10kWh battery and want to charge it quickly, your inverter must be able to handle enough power.

Should I buy a 5kw inverter?

If you’re using 5kW now but plan to add an EV, consider a 7–8kW inverter. It’s better to go slightly bigger now than to replace the whole system later. Bigger inverters cost more. But cheaper, smaller inverters might limit your system’s performance. Let’s say you pick a 3kW hybrid inverter to save money, but your panels can make 6kW.

How does a solar inverter affect efficiency?

The efficiency of the inverter drives the efficiency of a solar panel system. Inverters change the Direct Current (DC) from solar panels into Alternating Current (AC), which is what we use in our homes and businesses. This article talks about how to pick the right size solar inverter.

How do I choose a solar inverter?

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.

What size inverter do I Need?

You’re probably looking at a 6kW inverter. Simple. But there’s a flex range. Most setups run fine with an inverter that’s 80% to 120% of the system size. So if you’ve got a 5kW array, you can go with anything from 4kW to 6kW.