Solar inverters play a crucial role in any photovoltaic energy system, as they are responsible for transforming the energy generated by solar panels into usable electricity for your home or business. In the solar inverter market, Growatt stands out as a  leading manufacturer. Following market research and analysis of thousands of installations at Otovo, we market a wide range of its models.

Founded in 2010, Growatt has played a pivotal role in the expansion of solar energy globally. In fact, Growatts’ products are so reliable that in the UK, approximately 80% of our photovoltaic installations include a Growatt inverter

In this article, we will cover all of this: 

  • What is a solar inverter and how does it work? 
  • Presenting Growatt inverters 
    • Growatt SPH3000 BL-UP
    • Growatt SPH3600 BL-UP
    • Growatt SPH5000
    • Growatt SPH6000 BL-UP
    • Growatt SPH 6000
    • Growatt MIN 3000TL-XE
    • Growatt MIN 3600TL-XE
    • Growatt MIN 5000TL-XE
    • Growatt MIN 6000TL-XE
  • Battery compatibility.
  • Introducing other Growatt solutions. 
  • Presenting other hardware brands we work with at Otovo.

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What is a solar inverter and how does it work

In the context of solar energy, the photovoltaic inverter, (also called an inverter) is a vital and strategic component of any photovoltaic system; it is the brain of the system. Its main function is to convert the electricity generated by solar panels, which comes in the form of direct current (DC), into usable electricity for the home or business, which is in the form of alternating current (AC).To understand the importance of solar inverters, it is important to see in detail their functions and their role in a photovoltaic system:

  • Transformation from Direct Current to Alternating Current - As mentioned above, solar panels generate electricity in the form of direct current (DC). Although this form of electricity is ideal for collecting and storing solar energy, most of the appliances and electrical devices we use run on alternating current (AC). The solar inverter is the device responsible for carrying out this conversion from DC to AC.
  • Electricity quality assurance - Solar inverters also play a crucial role in regulating the quality of the electricity generated. This means that they stabilise the voltage and frequency of the electrical current, ensuring that electrical devices work optimally and safely. They also help protect the power grid by injecting electricity at appropriate phases.
  • Maximum Power Point Tracking (MPPT) - Modern solar inverters are equipped with advanced technology such as Maximum Power Point Tracker (MPPT), which optimises solar energy generation. The MPPT continuously tracks changing sunlight conditions to ensure that the solar panels operate at their peak efficiency, thereby maximizing electricity production.
  • Monitoring and Connectivity - Many solar inverters today are equipped with monitoring and connectivity systems that allow solar system owners to monitor performance in real time, detect problems and, in some cases, even control the system remotely through mobile applications or web-based platforms. 

Presenting Growatt inverters

At Otovo UK, we sell various Growatt inverters models. The full list includes:

  • Growatt SPH3000 BL-UP
  • Growatt SPH3600 BL-UP
  • Growatt SPH5000
  • Growatt SPH6000 BL-UP
  • Growatt SPH 6000
  • Growatt MIN 3000TL-XE
  • Growatt MIN 3600TL-XE
  • Growatt MIN 5000TL-XE
  • Growatt MIN 6000TL-XE

However, it is important to emphasize that some Growatt inverters are more popular than others. We would like to focus on them more here.

GrowattSPH3000TL BL-UP and GrowattSPH3600TL BL-UP

These inverters can be combined with a low voltage battery to supply power to your home. Furthermore, they have an efficiency of up to 97.6% and include a LCD & LED display. 


  • 10-year manufacturer warranty
  • DC/AC ratio of up to 2.0
  • Lithium and lead-acid batteries can be combined with this inverter
  • IP65 protection class
  • Natural cooling
  • Remote smart O&M

It's important to have in mind that the GrowattSPH3000TL BL-UP would support up to 8 x 440w panels and the GrowattSPH3600TL BL-UP would support up to 10 panels x 440w panels.  

GrowattSPH 6000

GrowattSPH 6000, single phase hybrid inverter is ideal for larger solar installations with batteries. Furthermore, this inverter was designed in a way that makes it more durable and flexible for installations and with multiple working modes. Finally, this inverter has an efficiency of up to 97.6% and includes a LCD & LED display. 


  • Ability to manage wide PV voltage range
  • Efficient layout
  • Smart battery management 
  • Online/remote support service
  • IP65 protection
  • Cooling mechanism
  • 10-year manufacturer warranty 

Important information is that GrowattSPH 6000 supports up to 17 x 440x panels but does require a G-99 application to be approved before installation can commence.

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Battery compatibility

To increase the value you get from your solar system, we usually recommend including a battery. The rates to export electricity back to the grid are much less than the cost to import electricity so it makes sense in most cases to store any excess to use at a later time such as the evening when your system won’t be generating electricity. Solar batteries are a great element of a photovoltaic installation as they help increase savings on electricity bills, since they store the energy produced by solar panels.This means that the electricity produced by the solar panels can be self-consumed instead of being fed into the electrical grid, leading to lower grid energy consumption. To optimize the use of solar batteries we recommend combining Growatt inverters with Growatt batteries. At Otovo we sell various types of Growatt battery models. The full list includes:

  • Growatt GBLI6532 (6.0 kWh)
  • Growatt GBLI6532 x 2 (12.0 kWh)
  • Growatt AXE 5.0L (5.0 kWh)
  • Growatt AXE 10.0L (10.0 kWh)
  • Growatt AXE 15.0L (15.0 kWh)
  • Growatt AXE 20.0L (20.0 kWh)
  • Growatt AXE 25.0L (25.0 kWh)
  • Growatt GBLI3331 (3.0 kWh)

(Please note that the number in brackets is the useable battery capacity)

Introducing other Growatt solutions 

In addition to manufacturing inverters and batteries, Growatt also offers a wide range of other photovoltaic solutions and hardware, including:

  • Customised solutions for large-scale solar energy projects.
  • Products and accessories that improve the efficiency and durability of solar systems (e.g., smart meters).

These solutions are flexible and versatile, designed to adapt to a variety of applications in solar energy projects, whether small scale or large scale. To sum up, Growatt strives to provide diversified options to meet the needs of its customers in the field of solar energy.

Growatt: information of interest about the company

Growatt is a globally renowned manufacturer of high-quality inverters, with a history spanning over a decade. The company has established itself as a leader in the industry, boasting a track record of selling millions of inverters across both residential and commercial sectors. Growatt's commitment to innovation is evident in its robust focus on research and development, continually pushing the boundaries of what's possible in inverter technology.

In addition to being a leading company in the Chinese market, Growatt sells its products on a large scale in over 150 countries around the globe. The company is present not only in Europe, but also in North and South America, Australia, Asia and Africa.

Furthermore, Growatt is offering not only PV inverters but also energy storage systems and other intelligent energy management solutions. With a valuation of $1 billion, Growatt stands as a testament to the trust and confidence placed in its products by customers worldwide.

Other brand solutions

At Otovo, we work with a wide variety of high-quality manufacturers of solar panels systems hardware adapted to the needs of any home. Our advisors will always advise you on the most advantageous hardware brands and models that best suit your energy needs and would give you the best return on your investment. 

The inverter manufacturers that we work with (in addition to Growatt) in Otovo are:

  • Huawei
  • Solis.


Considering everything discussed throughout the article, it is clear that Growatt's  inverters are an excellent option for those seeking durable, efficient, versatile and  innovative products that can adapt to various scenarios and types of photovoltaic installations. 

After all, each photovoltaic installation requires personalised solutions, whether it be the solar panels themselves or the other components. Therefore, we cannot stress enough the importance of choosing high-quality and reliable brands, especially with such important elements as the inverters that play a crucial role in the functioning of any PV system.

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