Growatt Inverter Review: Pros, Cons, and UK Experience

Overview

Growatt (formally Shenzhen Growatt New Energy) was founded in 2010 and has become one of the world's largest inverter manufacturers, shipping to over 150 countries. Their product range spans residential, commercial, and utility-scale inverters.

In the UK residential market, Growatt occupies a similar position to Solis — reliable, affordable hardware with less software sophistication. The key difference is that Growatt has invested more in battery-compatible hybrid models.

The SPH range

The SPH range offers good specifications for the price. The 7.5kW max PV input allows reasonable DC oversizing, and battery flexibility means you can choose from several third-party brands.

Strengths

Global manufacturing scale

Growatt's production volume means consistent quality control and competitive pricing. When you're making millions of units, the per-unit cost of quality assurance drops significantly.

Battery flexibility

Unlike GivEnergy and Fox ESS, Growatt works with multiple battery brands. Pylontech pairing is common and well-tested, offering a cost-effective combination.

Competitive pricing

At £650–£850 for a 5kW hybrid, Growatt matches Solis as the most affordable reputable option. Paired with Pylontech batteries, total system costs can be very competitive.

Proven hardware

The SPH range has been on the market for several years with generally positive reliability reports. Hardware failure rates are low, consistent with Growatt's large global install base.

Weaknesses

UK support

This is Growatt's main limitation in the UK market. While the company has a UK office, the support infrastructure is smaller than GivEnergy's or SunSynk's:

• Fewer UK support staff
• Longer response times reported by some installers
• Smaller UK installer network (fewer installers stock and recommend Growatt)
• Less UK-specific documentation and configuration guides

App and monitoring

ShinePhone (Growatt's monitoring app) provides basic functionality:

• Generation and consumption data
• Battery status
• Remote scheduling

But it's less polished than competitors. The interface feels dated, data export options are limited, and some users report connectivity issues. The app works, but it's not a selling point.

Community

The UK Growatt community is much smaller than GivEnergy's. Fewer forum posts, fewer shared configurations, fewer YouTube setup guides. If you encounter an issue, there's less peer support available.

Smart tariff integration

Limited native support for UK-specific tariffs. Basic time-of-use scheduling works, but intelligent Agile optimisation requires third-party tools with less community-tested configurations.

Growatt vs Solis

These two brands compete directly in the UK budget segment:

Growatt edges ahead on EPS backup inclusion and higher PV input. Solis has a slightly larger UK installer network. Both are reliable, affordable, and do the core job well.

Who should choose Growatt?

Choose Growatt if:

• Your installer recommends it and has strong Growatt experience
• Budget is the primary concern
• Battery flexibility matters
• You want built-in EPS at a budget price
• You don't need a polished app experience

Look elsewhere if:

• UK support quality is important to you (choose GivEnergy)
• You want the best monitoring and smart features (choose GivEnergy or SunSynk)
• You want the largest UK community for peer support (choose GivEnergy)

For comparison, here is a popular alternative:

SunSynk 5kW Hybrid Inverter

£1,150

rated power kw

5

max pv input kw

7.5

mppt channels

2

battery voltage v

48V

View on Amazon

Affiliate link — we may earn a small commission at no extra cost to you

The verdict

Growatt is a perfectly capable inverter from a massive global manufacturer. The hardware is reliable, the pricing is competitive, and the battery flexibility is welcome. The weaknesses are all on the software and UK support side — areas that matter more to some buyers than others.

If your installer knows Growatt well and the system is priced competitively, it's a solid choice. But if you're choosing your own equipment or your installer offers multiple brands, the stronger UK ecosystem around GivEnergy and SunSynk usually tips the balance in their favour.

Growatt SPH 5000TL3-BH UP Hybrid Inverter

£850

rated power kw

5

max pv input kw

7.5

mppt channels

2

battery voltage v

48V

View on Amazon

Affiliate link — we may earn a small commission at no extra cost to you

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