Solis 8kW Hybrid Inverter vs GoodWe, Inverex and Knox: 8 kW Compared

We supply all four brands, so this is a fair comparison, not a sales push. If you are still choosing between sizes, our 6 kW comparison and 10 kW comparison cover the sizes either side.

Who an 8 kW hybrid inverter suits

An 8 kW hybrid sits between the common 6 kW home inverter and the 10 kW class. It usually makes sense when:

• a 6 kW inverter is already running near its limit by day (two inverter ACs plus a water motor, for example);
• you want room for more panels without moving to a three-phase system;
• you run a shop, clinic or small office that needs backup but not a full commercial inverter;
• you expect to add a second unit later and want a model that supports parallel operation.

If your load is clearly above 10 kW, skip ahead to our 12 to 20 kW three-phase hybrid guide.

Diagram

8 kW hybrid inverters we compare

Solis

S6-EH1P family

GoodWe

ES Uniq family

Inverex and Knox

Pakistan-market hybrids

Single-phase or three-phase at 8 kW?

Most 8 kW hybrids in the Pakistani market are single-phase. That suits most Punjab homes, which are on single-phase meters. The exception is GoodWe, whose best-known 8 kW hybrid is part of its three-phase ET range.

A single-phase inverter on a three-phase connection only serves one phase; loads on the other two still come from the grid. Our three-phase vs single-phase inverter guide explains both cases. If you plan to export power, note that the 2026 net billing rules refer to three-phase 400 V or 11 kV connections; see our net metering and net billing guide.

Side-by-side comparison

Specifications change between model versions, so this table compares what to check rather than full datasheet figures. Your quotation carries the exact model code and datasheet.

8 kW hybrid inverter price in Pakistan

A three-phase high-voltage hybrid like the GoodWe usually costs more than a single-phase 48 V unit of the same kW, and its battery is priced differently too. Compare complete systems, not inverter labels. For other sizes, see our full solar inverter price in Pakistan list.

Solis 8 kW hybrid inverter: what to know

The Solis S6-EH1P L-PLUS range is a single-phase, low-voltage hybrid family that includes an 8 kW model. According to Solis, the range accepts batteries in the 40 to 60 V band, has two MPPTs and allows several units to run in parallel. Buyers choose it for:

• Monitoring. The Solis cloud platform shows generation, home use and battery state clearly.
• Expansion. Parallel capability means a second unit can be added later if the load grows.
• Battery choice. Solis publishes a list of compatible batteries, which makes it easier to check pairing with a 48 V class battery such as a Luminey low-voltage unit.

Points to check: the backup output rating, and that the battery we quote communicates with this exact model.

GoodWe 8 kW hybrid inverter: what to know

GoodWe's 8 kW ET model is a three-phase hybrid for high-voltage batteries, with two MPPTs and fast switchover to backup when the grid fails. This makes it a different kind of system from the other three:

• It needs a three-phase connection. It will not run on a single-phase meter.
• It needs a high-voltage battery. A 48 V battery will not work with it. Read high-voltage vs low-voltage solar batteries for why.
• It backs up all three phases, within its backup rating.

GoodWe makes its own batteries, but they are not in our range; we pair GoodWe hybrids with compatible high-voltage batteries from the brands we stock. Some sellers also offer other GoodWe 8 kW variants, so check the model code on the quote.

Inverex 8 kW hybrid: what to know

Inverex is one of the most familiar inverter names in Punjab, and an 8 kW single-phase hybrid with a 48 V battery input has been sold under the Nitrox name. At least one retailer now lists that model as discontinued, so the 8 kW Inverex you are quoted may be a newer version or a different family. Buyers like Inverex for:

• Familiarity. Many local electricians know the menus and settings.
• Backup focus. It is designed for homes where load-shedding is the main worry.
• Common 48 V batteries. It pairs with standard low-voltage lithium.

Points to check: the exact model code, its PV input limit, and which lithium batteries it communicates with.

Knox 8 kW hybrid: what to know

Knox sells 8 kW single-phase hybrids in more than one family, including Krypton and Xenon, which differ in features such as enclosure protection. Listings for the Krypton 8 kW describe parallel operation with several units. Buyers like Knox for:

• Choice of families. You can pick a model to suit an indoor battery room or a dustier, more exposed location.
• Backup focus, similar to Inverex.
• Parallel options on some models.

Points to check: which family is quoted, its protection rating, and its battery compatibility list.

How to choose between them

Rules that apply to all four:

1. Choose the battery with the inverter. 48 V and high-voltage batteries are not interchangeable. See lithium battery price in Pakistan for Luminey and current Huawei and Sungrow options options.
2. Check parallel before you need it. If you might add a second unit, confirm the model supports it and how. Our parallel inverters guide explains the rules.
3. Check the backup rating, not just "8 kW". The power available in an outage can be lower than the on-grid rating.
4. Match panels to the MPPT inputs. Two MPPTs let you split panels across two roof faces.

A hybrid can also start without a battery and take one later; see can a solar inverter work without a battery? Not sure 8 kW is right? Try our solar calculator.

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, and every quote names the exact brand, model and warranty. Our own teams install and support the system, with a 3-year structure warranty, a 1-year service warranty under the applicable project terms, and a 48-hour target to send service personnel after a complaint is registered.

Get today's price or a free site survey

Send a photo of your meter and 12 months of bills, and we will tell you whether a single-phase or three-phase 8 kW hybrid fits.

• 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.

Frequently asked questions

What is the Solis 8 kW hybrid inverter price in Pakistan?

It changes with the dollar rate and stock, so check the price table above. WhatsApp 0336 666 4321 for today's rate, with or without a battery.

Is the GoodWe 8 kW hybrid single-phase?

The GoodWe 8 kW ET model is three-phase and uses a high-voltage battery. If your house has a single-phase meter, a single-phase 8 kW hybrid from Solis, Inverex or Knox is the usual fit.

Should I buy 8 kW or 10 kW?

If your daytime load sits comfortably under 8 kW and you are on single-phase, 8 kW is often enough. If you expect more ACs or a bigger battery soon, compare our 10 kW guide and ask us to check your bills.

Can two 8 kW inverters run in parallel?

Several single-phase 8 kW models support parallel operation, but the limit and wiring rules differ by brand. Both units normally need to be the same model and firmware. We confirm this for the exact model in your quote.

Which battery works with an 8 kW hybrid inverter?

Solis, Inverex and Knox 8 kW hybrids use 48 V class lithium batteries; the GoodWe ET needs a high-voltage battery. The battery must also be on the inverter's compatibility list so they communicate.

What warranty comes with an 8 kW hybrid inverter?

Each inverter carries its manufacturer's warranty per product. Solar Works Pakistan adds a 1-year service warranty under the applicable project terms.

Sources

1. Solis, S6-EH1P(3-10)K-L-PLUS single-phase low-voltage hybrid product page
2. sun.store, GoodWe GW8K-ET product listing (three-phase, high-voltage battery, 2 MPPT)
3. Powerhouse Express, Inverex Nitrox 8 kW 48 V listing (single-phase hybrid, marked discontinued)
4. W11 Stop, Knox Krypton 8 kW hybrid listing (single-phase, parallel operation; model existence only)