Solar Power Systems

Grid Connect Solar

How Solar power works

Grid Connect Solar Power

Grid connected solar systems are usually homeowners first step towards taking control of their energy in Gippsland.  A grid connected solar system generally consists of photovoltaic solar modules or pv panels and a grid tied inverter.  Photovoltaic solar panels produce electricity by sunlight passing through them causing electrons to jump around.  When enough cells and panels are in series with each other in a string, they will start to produce DC electrical energy at large enough levels to feed a solar inverter.  The solar inverter is responsible for transforming the solar DC (direct current) electrical energy into AC (alternating current) at the same frequency as our electrical grid.  One of two things then happen, the energy from the panels via the solar inverter is then fed to the homes electrical distribution board or switchboard where it is either used to power appliances that are being used, or if it is not required it is fed back into the main electrical grid.  Any electricity consumed by the house from the solar during the day displaces energy that would normally be supplied from the grid, providing a saving for the homeowner.  Any electricity that is fed back into the grid is usually eligible for a feed in tariff from the electricity retailer. Grid connect solar power systems do not store electricity, neither do they generate power at night. Also because the grid tied inverters need the grid voltage as a reference when generating power, they will not function in a grid outage.  If storing solar generated electricity or having power in a blackout is important to you, we suggest a hybrid solar power system, or grid connect with battery storage as explained below.

Solar with Battery Storage (Grid Connect Hybrid/Solar)

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Hybrid Solar Power

Hybrid solar power systems are the next step for homeowners in solar energy and is set to change the way electricity is used as we know it.  These systems are effectively a grid connect solar system as explained above with a very advantageous twist.  While grid connect systems will supply power directly to the home while the sun is shining, they do have a rather large anomaly for householdsupply, they don’t store electricity once its generated.  So effectively you use it, or you lose it.  Some solar inverter companies such as SolarEdge have developed very advanced inverter systems that can integrate batteries to a grid connect system.  The advantage of this is when a solar system is generating more power then what the home is using, it senses this and rather then send the excess electricity to the grid, it will divert this energy into a battery such as the TESLA Powerwall.  This gives homeowners the ability to store that generated solar energy until they actually require it later that day under heavy electrical loads or at night when the solar panels are no longer generating power. These systems also have the ability to use lower cost off peak or night rate electricity (when available) to charge the battery for use the next day in low solar periods such as winter.  If coupled with a Selectronic or SolarEdge StorEdge solar inverter, the system will provide backup power to specified home power outlets and lights, from the battery and the solar panels during the day in the event of a grid failure.

Off Grid Solar

Off grid solar power is the ultimate solution for people looking to become self sufficient in today’s electrical market.  An off grid or stand alone power supply is a system that uses multiple components of inverters, panels, batteries, monitoring devices and back up generators to provide power free of any coal fired, or other mains power station’s electricity network.  This type of system is designed on individual customer basis and requires a higher level of input from the customer about energy requirements.  Generally these systems are installed where connection to the grid is prohibitively expensive as the initial investment for off grid solar supply systems is substantial.  If you would like more information on a stand alone power supply system please contact us today on 03 5176-0109.