We design, install and monitor home and small businesses solar power installations from:

From 1kw to 50kW+

Our solar solution PV (Photovoltaic*) Systems are available in several different design options. The three basic components of a solar solution system are:

  • Inverter,
  • Battery and
  • Solar Power.

Solar PV modules:

Solar PV modules converts sunlight into electricity. These PV modules are available in different sizes, efficiency and power ratings. Our panels are only from the highest quality rating manufacturers.

Inverters:

Inverters receives electricity from Solar PV modules and converts that electricity from DC (Direct Current) to AC (Alternating Current). Inverters differ on function and output. There are 4 basic types of inverters this will determines the type of system you choose: Hybrid, Grid Tied, Bi-Directional and Off Grid.

Hybrid systems are the standard solar systems that uses solar to charge a set of batteries and supply power to the home, with Eskom as tertiary power supply.

This solution is ideal when electricity savings in conjunction with battery back-up to ensure a steady power supply, even during power outage

Hybrid systems consists of the following components:

  • Solar modules that collect sunlight and converts it to DC power
  • Inverter (with built-in charge controller and regulator) which:
    • receives DC power from Solar modules
    • receives AC power from Eskom
    • charges batteries with either Solar power or Eskom power (based on programming)
    • discharges batteries and converts it into AC power for supply to the building.
  • Deep cycle batteries which are managed by the inverter to be correctly charged by Solar or Eskom & discharged to supply power to the building

The Hybrid system is connected to specific circuits as wired in the DB, e.g. Lights, dedicated plug points, etc. All power supply (load) to these connected circuits flows through the Hybrid inverter, irrespective if the power is supplied by Solar, Batteries or Eskom.

The Hybrid inverter needs to be sized correctly to accommodate the required load. Hybrid systems are suitable for small to medium domestic, and very small commercial applications.

Hybrid inverters are available in different sizes. Multiple Hybrid Inverters can be interconnected to increase the load capacity of the system.

Grid Tied Solar systems are the most popular and economical system and a good step to going green. These systems are ideal for saving electricity costs and reducing monthly expenses, and offers the best Return on Investment

A Grid Tied system is very simple in design and consists of the following components:

  • Solar modules that collect sunlight and convert it into DC electricity
  • Inverter which receives the DC current and converts it into AC grid power

The solar generated power is connected through the inverter to the building’s grid at the main distribution board.

The inverter facilitates a seamless, dynamic interface between grid power and solar power, ensuring that there is always power supply going to the building and prioritizing the solar power supply so that the solar power is used first.

For example, if the power consumption is 100kW and solar is generating 95kW, then:

  • 95kW will be supplied from Solar with the inverter ensuring that the 95kW from Solar is used first.
  • Grid power will supply the balance of 5kW.

If power consumption is less than solar power supply, then no power will be drawn from the grid.

There is no switching between solar power & grid power, but rather a continuous supply of both solar power & grid power with solar power supply being the first priority. Subsequently there is no dip in power supply to the building, and therefore the grid tie solution is safe to use with any and all sensitive equipment, including PC’s.

Grid tie systems are fully expandable so that more solar PV panels can be added to the system to generate more Solar power. Battery systems can at later stage be incorporated with grid tied systems.

Grid tie systems can be added to existing warehouses, packaging plants and manufacturing plants or can be incorporated into the design and building of new premises. Grid tied systems are available in single phase and three phase. There is no limit to the power supply potential of grid tied systems and can be implemented for small buildings with low power usage or big manufacturing plants with high power consumption.

Grid tied system are compatible with diesel generators and UPS’s and are capable of grid feed-in. These systems are work well for medium to large domestic, and all commercial and industrial applications.

A bi-directional system is both a hybrid- and a grid tied system, combining the best of both worlds.

This is a dual solar feed system where one channel, like the hybrid system, uses solar power to charge batteries and supply power to the building. A second channel, like the grid tied system, supplies solar power directly to all other circuits in the building during the day, for maximum savings.

The battery system can subsequently be smaller than the hybrid system as the battery channel can be wired to only supply dedicated critical circuits which are required to receive power during power outage.

This solution is ideal for the following cases:

  • Maximizing electricity savings in conjunction with battery back-up to ensure a steady power supply, even during power outage.
  • Relative lower Capital layout compared to Hybrid system.

Hybrid systems consists of the following components:

  • Solar modules that collect sunlight and converts it to DC power
  • Inverter (with built-in charge controller and regulator) which:
    • receives DC power from Solar modules
    • receives AC power from Eskom
    • charges batteries with either Solar power or Eskom power (based on programming)
    • discharges batteries and converts it into AC power for supply to the building.
    • receives the DC current and converts it into AC grid power
  • Deep cycle batteries which are managed by the inverter to be correctly charged by Solar or Eskom & discharged to supply power to the building

Bi-Directional System are suitable for medium to large domestic and small commercial applications.

Off Grid systems means you’re not connected to the Eskom grid.

This solution is ideal for the following scenarios:

  • You’re building on a new property and the cost of bringing in an Eskom service is too high
  • You wish to be completely independent of Eskom
  • The monthly fixed connection cost from Eskom is exuberant relative to the consumption cost

Off Grid systems consists of the following components:

  • Solar modules that collect sunlight and convert it into DC power
  • Inverter (with built-in charge controller and regulator) which:
    • receives DC current from Solar modules
    • charges batteries with DC current
    • discharges batteries and converts it into AC power for supply to the building
  • Deep cycle batteries which are managed by the inverter to be correctly charged by Solar & discharged to supply power to the building

Off Grid systems are typically over designed to include more Solar modules and more battery capacity in order to cater for days of poor weather conditions.
During poor weather, i.e. rain, there is little or no Solar power generation. The battery capacity needs to allow for this in order to ensure a continuous supply of electricity.

Likewise the Solar generation capacity is oversized so that it can accommodate recharging the extended battery capacity and simultaneously supply power to the building.

Due to the overdesign of Off Grid systems, these have typically a longer Return on Investment.

Off Grid systems can be designed to run in conjunction with generators, and even to use generators to recharge batteries. This can result in smaller battery capacity and thus reduction in initial capital cost.

Batteries:

A set of batteries stores electricity for use at a later stage, either during power outage, or when power produced by the solar solution is not sufficient at that specific time. Batteries are available in many different options based on capacity, lifespan, efficiency, durability & especially cost.

Typical batteries used in solar are typically deep cycle applications that are:

  • Lithium Ion,
  • AGM Gel and
  • Lead Acid.

When you are ready we’ll assist in advising the best battery solution for you based on your individual requirements. Complete the form on the page and we’ll get in touch with you as soon as possible.

Example:

Here is a basic scenario of power consumption and using solar power.

Typical power usage peaks in the morning & evening and solar power generation peaks in the middle of the day.

This could result in a mismatch between solar power generation and power usage. If the Solar generation is less than the consumption, all the Solar Power will be used immediately. If the power generation from the solar is more than usage, batteries are used to store solar power during the day and use that stored power during the night.

Depending on the size of the solar system compared to consumption, selecting the correct system or you:

  • Do you want solar with battery back-up: Hybrid
  • Do you want solar power during day and night: Hybrid
  • Can you feed power back into the Grid (use the grid as battery): Grid Tied
  • Do you only want Solar Power during the day: small Grid Tied
  • Is the majority of your consumption during the day: small Grid Tied OR Hybrid

Definitions:

*PV: Photovoltaic essentially means electricity from the energy of the sun and is derived from the words “photo” with the Greek meaning light and “voltaic” meaning voltage.

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