+27 82 892 6531 info@electotech.co.za

Solar Specialists

Accredited PV Greencard Installers

Finance Available!

We can assist in financing your solar system. For both commercial and residential use. Min of R35 000 combined monthly income required.

Electotech is your one-stop Solar Specialist and Solar System provider. We will guide you through deciding which will be the best solution for your residential or commercial requirement.

Residential Solar Power System

The 5 factors to consider when deciding which Residential Solar System will best suit your requirements –

  1. How much do you want to spend
  2. What is your current electricity usage
  3. The available unshaded roof space
  4. What Eskom meter you currently use as well as the metering policy
  5. Which system to invest in

Commercial Solar Power System

The 3 reasons why you should invest in a Solar System for your business –

  1. Lock in your energy costs at a fixed, predictable rate and have a more accurate model of your electricity cost
  2. A sustainable solar solution significantly reduces your business carbon footprint
  3. You will have independence from the Eskom grid and not be impacted by load-shedding, thus no downtime
SAREC Accredited
Sapvia Accredited
PV Greencard Accredited

Why Use Electotech?
Accredited & Reliable

Electotech is a PV GreenCard accredited company; we are trained to promote safety and offer high-quality Solar PV installations. Our training is world-class and in line with international best practice compliance.

We are industry leaders, solar specialists and can confidently offer residential-and-business owner’s the added security and peace of mind, that we will use our state of the art software and experience to design and install a solar power system to fulfil almost any energy requirement.

4 Types of Solar Power Systems

Off-Grid Solar System

Off-Grid Solar System

An off-grid system is not connected to the electricity grid and therefore requires battery storage. An off-grid solar system must be designed appropriately so that it generated enough power throughout the year and have enough battery capacity to meet the home’s requirements. The high cost of batteries and inverters means off-grid systems are much more expensive than on-grid systems and so are usually needed in more remote areas that are far from any electricity grid.

Grid-Tied Solar System

Grid-Tied Solar System

On-grid or grid-tie solar systems are by far the most common and widely used by homes and businesses. These systems are connected to the public grid and do not require battery storage. Any solar power that you generate from an on-grid system (which is not used directly in your home) is exported onto the electricity grid and you usually get paid a feed-in-tariff (FiT) for the energy you export.

Hybrid Solar System

Hybrid Solar System

Due to the decreasing cost of battery storage, systems that are already connected to the electricity grid can start taking the advantage of battery storage as well. This means being able to store solar energy that is generated during the day and using it at night. When the stored energy is depleted, the grid is there as a backup, allowing consumers to have the best of both worlds.

Emergency Backup System

Emergency Backup System

The emergency backup system will keep your light on when the grid goes down. Perfect for load shedding periods. Your backup time will depend on the amount of storage you have. The backup systems main components consist of an inverter and battery storage.

Solar Power System Components

Electotech Solar Panel

Solar Panels

Solar panels (also known as “PV panels”) are used to convert light from the sun, which is composed of particles of energy called “photons”, into electricity that can be used to power electrical loads.

The panels are available in different physical sizes and can generate various amounts of electricity.

Electotech Inverter


An inverter is a power electronic device or circuitry that changes direct current to alternating current. The resulting AC frequency obtained depends on the particular device employed.

The input voltage, output voltage and frequency, and overall power handling depend on the design of the specific device or circuitry. The inverter does not produce any power; the power is provided by the DC source.

Electotech Solar Charge Controller

Solar Charge Controllers

Think of a solar charge controller as a regulator. It delivers power from the PV array to system loads and the battery bank.

When the battery bank is nearly full, the controller will taper off the charging current to maintain the required voltage to fully charge the battery and keep it topped off.

By being able to regulate the voltage, the solar controller protects the battery.

Electotech Solar Battery


There are certain specifications you should use when evaluating your solar battery options, such as how long the solar battery will last or how much power it can provide.

Batteries used in home energy storage typically are made with one of three chemical compositions: lead-acid, lithium-ion, and saltwater. In most cases, lithium-ion batteries are the best option for a solar panel system, though other battery types can be more affordable.


Mosswood Unit 6
1320 Van Der Kloof Road
Willowbrook, Roodepoort,
Gauteng, South Africa, 1724


+27 82 892 6531