6kW Hybrid Inverter Compared: Inverex Nitrox vs Knox vs Solis

This guide compares the three fairly on the points homeowners and shop owners care about. We supply all three brands, so we have no reason to push one over another.

What a 6 kW hybrid inverter is for

• Lights, fans, a fridge and a water pump during the day on solar
• One or two inverter ACs on solar during sunny hours, depending on the rest of the load
• Essential loads at night or during load-shedding from a battery

A hybrid inverter powers your house from solar first, charges a battery with any surplus, and draws from the grid when needed. It can run without a battery at first and take one later. For AC sizing, see the solar for AC guide.

Side-by-side comparison

From current manufacturer and distributor datasheets, October 2026. Model versions change; the exact model and datasheet are confirmed on your quotation.

Diagram

Which 6 kW hybrid fits your home?

Inverex Nitrox 6.6 kW

Backup firstUp to 16 in parallelElectricians know it5-year warranty

Knox Krypton 9000

Value priceRuns with no batteryBuilt-in Wi-Fi3-year warranty

Solis S6 6 kW

Best monitoringIP66 for dusty roofsGenerator ready5-year warranty

All three need a battery that is on their compatibility list. Choose the inverter and battery as a pair.

6 kW hybrid inverter price in Pakistan

Prices change with the dollar rate, import costs and stock. For other sizes and brands, see the solar inverter price in Pakistan.

Inverex Nitrox 6 kW: what to know

• Familiarity. Many electricians in Punjab know the menus and settings.
• Backup focus. Built for homes where load-shedding is the main concern, with a high battery charge current and generator support.
• Room to grow. Up to 16 units in parallel.

Check the exact Nitrox variant (there are several ratings around 6 kW), its PV input limit for the number of panels you want, and which lithium batteries it communicates with.

Knox 6 kW: what to know

• Choice of families. Krypton, Xenon and Zynex differ in PV input and protection rating.
• Batteryless mode. The Krypton 9000 can run on solar and grid with no battery, then take one later.
• Value. Usually the lowest price of the three; the shorter 3-year warranty is the trade-off.

Check which Knox family is being quoted, since the features differ, and its battery compatibility list.

Solis 6 kW hybrid: what to know

• Monitoring. SolisCloud gives a clear view of generation, consumption and battery status.
• Build. IP66, suited to outdoor wall mounting on dusty Punjab roofs.
• Expansion. Parallel units up to 48 kW, single or three-phase; fast switchover to backup and generator support.

Check its approved battery list and how its backup output handles large loads such as an AC during an outage.

How to choose between them

1. Choose the battery with the inverter. They must communicate correctly. See the lithium battery price in Pakistan for current options.
2. Match the panels to the inverter. The PV input limit decides how many panels you can connect; today's panels are 615 W and above. See the solar panel price in Pakistan.
3. Check your connection. A 6 kW hybrid is single-phase. On a three-phase connection, read the three-phase vs single-phase inverter guide first.
4. Think about next year. If you may add a second AC, 6 kW may become tight. Sizing up now can cost less than replacing later.

Not sure 6 kW is right? Start with the solar calculator, or read best solar inverter in Pakistan for a wider comparison.

Can I run a 6 kW hybrid without a battery?

Yes, all three can run without a battery, using solar during the day and the grid at other times. Behaviour during load-shedding without a battery varies by model, so check before you rely on it. See can a solar inverter work without a battery?

Why buy through Solar Works Pakistan

We are a solar EPC, engineering and trading company founded in 2021, with 300+ customers and 50+ industrial clients across Punjab. Our in-house engineers size inverter, battery and panels as one system. Every quotation lists the exact brand, model and manufacturer's warranty. Installation and after-sales are by our own teams, with a 1-year service warranty under the applicable project terms and, for systems we installed, a 48-hour target to send service personnel after a complaint is registered.

Get today's price or a free site survey

• WhatsApp or call: 0336 666 4321
• Email: info@solarworks.pk
• Head office: Main Boulevard, Sargodha Rd, Block F FDA City, Faisalabad
• Lahore branch: 2nd Floor, Jeff Heights, Gulberg, Lahore
• Hours: 9:00 AM to 6:00 PM, daily

We serve customers throughout Punjab. See our Faisalabad and Lahore pages, or contact us with your recent electricity bills.

Frequently asked questions

What is the Inverex 6 kW inverter price in Pakistan?

It changes with the dollar rate and stock. WhatsApp 0336 666 4321 for today's rate on the Nitrox 6.6 kW.

Is Knox or Inverex better for a 6 kW home system?

Both are backup-focused hybrids. Nitrox offers more parallel units, a higher battery charge current and a 5-year warranty; Knox Krypton is usually cheaper and runs without a battery, with a 3-year warranty. The battery you plan to use often decides it.

When does Solis make more sense than Inverex or Knox?

When you value detailed monitoring, an IP66 outdoor build and room to expand. For simple backup through load-shedding, Inverex or Knox may suit you just as well.

Can a 6 kW hybrid inverter run a 1.5 ton AC?

Usually yes, on solar during the day, if the rest of your load leaves room. Running an AC at night on battery needs a much larger battery; see the solar for AC guide.

Which battery works with these inverters?

Each supports specific 48 V lithium batteries. We match inverter and battery as a pair in your quotation so charging and communication work correctly.

What warranty do these inverters have?

Manufacturer's warranty: 5 years on Inverex Nitrox and Solis S6, 3 years on Knox Krypton 9000. Solar Works Pakistan adds a 1-year service warranty under the applicable project terms.