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3 of The Best Solar Inverters for Sale in South Africa

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best solar inverters for sale in south africa

As South Africa continues to embrace renewable energy, the demand for efficient and reliable solar power solutions has skyrocketed.

At the heart of every successful solar installation lies a crucial component: the solar inverter. The choice of the best solar inverter plays a vital role in maximizing energy conversion, ensuring optimal performance, and achieving long-term cost-effectiveness.

In this blog, we delve into the world of the best solar inverters, exploring the top brands available from Off Grid Power Solutions, their features, and their performance in the South African market.

Whether you are a homeowner, business owner, or industry professional, this guide aims to help you make informed decisions when it comes to selecting the best solar inverter for your specific needs, taking into account factors such as efficiency, reliability, affordability, and compatibility with South Africa’s unique conditions and grid requirements.

Join us on this journey as we empower you with knowledge and insights into the best solar inverters available in South Africa, enabling you to harness the power of the sun for a greener and more sustainable future.

solar inverters - talk to an expert

The 3 types of solar inverters:

Grid-tied Solar Inverters

Grid-tied Solar Inverters operate in conjunction with the electrical grid, where solar power is consumed first. In this setup, affordable inverters may not have the capability to export excess electricity to the grid and may require an active grid connection for operation.

Off-Grid Solar Inverters

Off-grid solar inverter systems, on the other hand, are designed to function independently of the grid, relying solely on solar power or stored energy from batteries. However, these systems can still be connected to the grid and will switch over to grid power if solar or battery capacity is insufficient. It is important to note that electricity generated by off-grid systems cannot be fed back into the grid.

Hybrid Solar Inverters

Hybrid solar inverter systems offer versatility by allowing both grid-tied and off-grid configurations. These systems incorporate an inverter capable of utilizing a combination of solar power and grid electricity based on demand and availability. This flexibility ensures optimal utilization of available energy sources as required, thus making hybrid inverters the best solar inverter option.

But Wait! Do I really need a solar inverter?

If you’re considering harnessing solar power for your home or business, choosing the best solar inverter is an essential component of your solar energy system. Solar panels generate direct current (DC) electricity, which cannot be directly used to power your appliances or be fed into the electrical grid.

A solar inverter is responsible for converting that DC electricity into alternating current (AC), which is a usable form of electricity for your everyday needs.

Without a solar inverter, the energy generated by your solar panels would go to waste. The solar inverter ensures that the electricity produced is compatible with your electrical system, allowing you to power your home or business with clean and sustainable solar energy.

Screenshot 2022 11 10 at 11.12.00

If you are looking for a solar panel that is compatible with the inverters mentioned in this post you can view a few that we currently have for sale: Click here to view our solar panels

Where should a Solar Inverter be located?

Almost all solar inverters are installed safely outside and are fully weather-rated. Solar inverters should, however, be installed in a protected or shaded area to prevent extreme South African weather and wide temperature variations, which can lower performance and lifespan.

Locating a solar inverter inside a garage, under a carport, and out of direct sunlight will significantly extend its lifespan. Most importantly, locations exposed to the hot afternoon sun should always be avoided. 

If exposure to direct sunlight is unavoidable, a protective sun cover will help the inverter last longer.

The best battery configuration for your solar inverter.

When choosing the best solar inverter, it is essential to get the setup and configuration of your off-grid power system correct. Here is what we recommend for your setup and inverter type.

Inverter & Battery Setup Recommendation
12v InverterUse a minimum of one 12v battery or 2 but in a parallel connection. ( 100a/h or 200a/h 12v)
24v InverterUse 2x 12v Batteries to make up 24v in Series. ( 2x 12v 100a/h )
48v InverterUse either 4x 12v 100a/h or 2x 200amp/hour 12v batteries in series. Or 1x 100a/h Lithium 48v battery.

Here are our picks on the best solar inverters in South Africa

1. Goscor 1kw – 5kw Hybrid Solar Inverters

Goscor solar inverter is a powerful & affordable inverter for your home or office. You possibly never heard of the Goscor brand inverter but this is our own brand. This inverter comes with a 1-year warranty and is perfect for anyone who is starting out on going off the grid.

Technical Details:

  • Pure sine wave output
  • Rated Power Output: 1 – 5kw
  • Smart LCD setting (Working modes, Charge Current, Charge Voltage, etc).
  • Bult in MPPT 60A/80A solar charge controller
  • Combining solar system, AC utility, and battery power source to supply continuous power
  • Overload, short circuit and Deep discharge protection
  • Cold start function
  • Support USB, RS485 monitoring function
  • WIFI remote monitoring (optional)
  • Compatible to generator
  • Support parallel operation up to 3 units (available for 3KW-5KW 48V)

Available Models:

  1. Goscor 1200W High Frequency Solar Inverter Pure Sinewave / Hybrid
  2. Goscor 3000W High Frequency Solar Inverter Pure Sinewave / Hybrid
  3. Goscor 5000W High Frequency Solar Inverter Pure Sinewave / Hybrid
Screenshot 2022 11 10 at 13.06.11

After-sales support?

We have a fully backed Goscor inverter service and repair centre that can supply service parts such as PCBs, MPPT boards, and BMS boards. To get more information feel free to Call us on 087 542 0256 / 087 806 6872 or email powerproducts@goscor.co.za (Off Grid Power Solutions is a subdivision of Goscor Power Products)

Our solar warranty terms are available here: click here to view our warranty terms

2. Phocos Hybrid Inverter Pure Sinewave

The Phocos Any-GridTM PSW-H Inverter Charger Series represents Phocos’ most versatile line of inverters/ chargers. Flexibility and reliability are key characteristics of this product line, with a strong potential for cost-saving opportunities in real-world conditions.

The Any-Grid PSW-H can function in a battery-free mode. In this mode, for installations with stable public grids, grid energy consumption can be reduced without the need to invest in a costly battery bank. Additionally, power can be supplied directly to loads from the grid and solar simultaneously.

Technical Details:

  • Integrated high-voltage MPPT charge controller(s).
  • Integrated AC battery charger.
  • Charge controller(s) function(s) even if the inverter is turned off to keep batteries fully charged
  • Compatible with Lithium batteries
  • Functions even without an expensive battery to reduce energy consumption from the grid with minimal investment

Available Models:

  1. Phocos 5kW Hybrid Inverter Pure Sinewave
  2. Phocos 8kW Hybrid Inverter Pure Sinewave
Screenshot 2022 11 10 at 13.09.00

After-sales support?

We have a fully supported service and repair centre for Phocos inverters that can supply service parts like PCBs, MPPT boards, and BMS boards. To get more information feel free to call 087 542 0256 / 087 806 6872 or email powerproducts@goscor.co.za (Off Grid Power Solutions is a subdivision of Goscor Power Products)

Our solar warranty terms are available here: click here to view our warranty terms

3. Rebel-Max Hybrid Inverter

Achieve maximum system mastery with this ultimate true hybrid inverter.
The dynamic Rebel Max delivers durability and energy optimization along with customizable LED lights. So your system can reach its full potential all while looking cool.

Technical Details:

  • Pure Sine Wave Inverter
  • Built-in MPPT Charge Controller
  • Customizable status LED Ring with RGB Lights
  • 4.3″ LCD Display
  • Wide DC Input Range
  • Supports USB On-The-Go Function
  • Data Logger u t
  • Built-in Wi-Fi for Mobile Monitoring (App Available) • Battery Independent Function
  • Parallel Operation with up to 9 Units

Available Models:

  1. Rebel Max-5kw-inverter
Screenshot 2022 11 10 at 13.24.23

3. Goscor 5kw – 12kw Hybrid Inverters

image

Technical Details:

  • Rated power: 5.2KW – 12Kw
  • Grid Feed Ready
  • Pure sine wave output
  • Smart LCD setting (Working modes, Charge Current, Charge Voltage, etc).
  • Bult in MPPT solar charge controller
  • Combining solar system, AC utility, and battery power source to supply continuous power
  • Overload, short circuit and Deep discharge protection
  • Cold start function
  • Compatible to generator
  • WIFI remote monitoring (optional)

Available Models:

Choosing the best solar inverter: High vs Low Frequency

High-frequency solar inverters

High-frequency solar inverters, also known as lightweight or compact inverters, are designed to be smaller and more lightweight than their low-frequency counterparts.

These inverters operate at higher switching frequencies, resulting in increased efficiency and reduced size. They are typically less expensive and offer improved energy conversion efficiency, making them a popular choice for residential and small-scale solar installations.

However, high-frequency inverters may have lower surge power capabilities, limiting their suitability for high-demand appliances or systems.

low-frequency solar inverters

On the other hand, low-frequency solar inverters, also called heavy-duty or traditional inverters, operate at lower switching frequencies.

They are larger and heavier compared to high-frequency inverters but offer robust performance and higher surge power capabilities.

Low-frequency inverters are often preferred for larger-scale solar installations, off-grid systems, or applications with high power demands, such as industrial or commercial setups.

They can handle larger loads and are generally more durable and reliable, although they may be relatively more expensive.

Ultimately, the choice between high-frequency and low-frequency solar inverters depends on factors such as the size of the installation, power requirements, budget, and specific needs of the system.

It is advisable to consult with a professional solar installer or engineer to determine the best solar inverter type for your solar energy project.

Hybrid off-grid vs hybrid on-grid

The choice between hybrid off-grid and hybrid on-grid systems depends on various factors. Hybrid off-grid systems are suitable for locations without reliable grid access, offering energy independence but requiring careful management.

Hybrid on-grid systems are preferable for areas with reliable grid access, providing the flexibility to utilize solar power, reduce grid dependency, and potentially benefit from net metering.

It is important to assess your specific energy needs, location, and available resources to determine which hybrid solar system configuration aligns best with your requirements. Consulting with a professional solar installer or engineer can provide valuable insights and guidance in selecting the best solar inverter for your requirements.

Conclusion: The best solar inverter?

In conclusion, when comparing the best solar inverters, considerations must be made regarding the system configuration, whether it’s hybrid off-grid versus hybrid on-grid and the choice between high-frequency and low-frequency inverters.

For those seeking energy self-sufficiency in remote locations or areas with unreliable grid access, hybrid off-grid systems offer independence through solar panels, batteries, and a hybrid solar inverter. These systems provide autonomy and require careful monitoring and management.

Alternatively, hybrid on-grid systems are connected to the electrical grid while incorporating solar panels, batteries, and a hybrid solar inverter. They offer the flexibility to utilize solar power, grid power, and battery power, potentially reducing grid dependency and even benefiting from net metering.

Furthermore, when considering the inverter type, high-frequency inverters are compact, cost-effective, and efficient, making them suitable for residential or small-scale installations. In contrast, low-frequency inverters are more robust and capable of handling larger loads, making them preferable for larger-scale projects or applications with higher power demands.

Ultimately, the choice of the best solar inverter depends on individual needs, available resources, and system requirements. It is advisable to consult with a professional solar installer or engineer to assess specific circumstances and make an informed decision that ensures optimal performance and long-term reliability.

By carefully evaluating the system configuration and selecting the appropriate inverter type, one can maximize the benefits of solar energy, whether it be achieving energy independence, reducing reliance on the grid, or maximizing efficiency and power capacity. Embracing solar power with the best solar inverter is a step towards a greener, more sustainable future.

Frequently Asked Questions

What size inverter is needed to run a house?

The size of the best solar inverter needed to run a house depends on the specific power requirements, typically ranging from 3 kW to 10 kW or higher. Most households make use of a 5 KW inverter.

How many solar panels will you need for 5kW inverter?

To create a 5kW solar system, you would require 12 solar panels, assuming the panels have a capacity of 415W each. This configuration would provide an overall output of approximately 4.98kW. Each panel would have dimensions of around 1.8 meters by 1.1 meters, resulting in a total required roof space of at least 23.7m².

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Off Grid Power Solutions

Off Grid Power Solutions

Our team brings over 25 years of expertise in the renewable and power industry as an established online solar supplier.

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