Commercial Solar
Call Us 1300 789 114

FAQ

  • Q: Commercial: Is it worthwhile doing?
    A: 

    Yes, Commercial Solar can show you that it can cost you considerably less to generate your own solar power than to purchase it from the grid.

  • Q: Commercial: Do we need to worry about FiTs?
    A: 

    No. based on you company’s daily load profile Commercial Solar can design a system that will utilise a high percentage of the electricity generated in-house.

  • Q: Where should the solar panels be located?
    A: 

    Commercial Solar’s panels can be located on the roof or on the ground, depending on your individual requirements.

  • Q: What happens in a blackout?
    A: 

    When the grid supply voltage drops to zero (as in a blackout), your Solar PV Inverter’s safety function disables your Inverter so that it is safe for linesman to repair the fault. When the grid voltage returns to normal parameters your Solar PV Inverter re-activates so that you can start benefitting from free energy again.
    A solution for customers in areas prone to blackouts is a grid-connected battery backup system which uses the solar panels to charge a bank of batteries for when the grid voltage drops to zero (blackout). Your power supply will then switch over to the batteries to run your household appliances, uninterrupted by power outages.

  • Q: What happens on cloudy days?
    A: 

    On cloudy days, your PV array will still produce free energy, albeit at a reduced efficiency due to the diffusing effect of the cloud cover. You can monitor your PV array’s production by accessing the display panel on your Solar PV Inverter. Solar Australia will provide you with an annualised daily estimate of solar production which takes into account normal periods of overcast weather and this Clean Energy Council accredited Design Summary will be provided to you upon installation.

  • Q: What happens with my Solar PV system at night?
    A: 

    At night time, your solar energy system will shut down and your inverter will go to sleep. During this time your property’s energy consumption will be drawn from the grid. In the morning when the sun hits the solar panels, your inverter will wake up again and start producing clean, free energy.

  • Q: Do I still need grid power supply?
    A: 

    Your Solar PV system will supplement your grid power supply. This means that in a suburban residential setting, you will need grid supply for your non-daylight energy consumption as well as any usage in excess of your PV array’s supply.

    Your PV array will REDUCE the amount of energy drawn from the grid during solar hours. If you produce more energy from your PV array than your property requires, then the excess energy is fed back into the grid. Your Energy Retailer may pay you for this excess energy, so please ask your about their solar Feed-in Tariff offer in your state.

  • Q: Which is the correct solar hot water system for me?
    A: 

    Our friendly Site Inspectors will assess your family’s hot water energy usage and other site specific requirements and provide you with an obligation-free quotation on a customised solar hot water system designed to meet your specific needs.

  • Q: What are the benefits of heat pump solar hot water?
    A: 

    Heat Pumps:

    • Do not need direct sunlight to work efficiently – uses ambient thermal air temperature to heat your water
    • Are ground mounted with no materials on your roof
    • Can save up to 75% of your household hot water’s energy consumption when compared to electric storage hot water heating
    • Can come in a single-piece, all-in-one design for easy installation
    • Indoor installation available (for a room of air volume >13m3)
    • Active defrost function for colder climates
  • Q: What are the benefits of evacuated tube solar hot water?
    A: 

    An evacuated tube solar hot water system passively tracks the sun – the curved nature of the tube collector means that this system can function efficiently on east and west roof aspects, providing more flexibility with installation.

    Additional benefits include:

    • 15 year warranty on major components
    • Lightweight and durable design – no heavy tanks or collectors on your roof
    • Excellent cold weather performance
    • Frost protected without the use of glycol
    • Low maintenance design

    Up to 80% energy savings when compared to electric storage hot water heating

  • Q: What are the different types of solar hot water systems?
    A: 

    The main solar hot water systems currently available in Australia are flat plate solar hot water, heat pump solar hot water, and evacuated tube solar hot water.

  • Q: What are the benefits of solar hot water?
    A: 

    A solar hot water system:

    • Provides clean, green, renewable and quiet energy generation
    • Reduces the amount of energy you need to purchase from your energy retailer
    • Protects you against future energy price increases
    • Reduces your greenhouse gas emissions and carbon footprint, providing a brighter future for generations to come
    • Increases the value of your property
    • Creates a healthy solar industry, benefiting our Australian economy through local employment
  • Q: What are the different types of solar PV panels?
    A: 

    A: Monocrystalline, Polycrystalline panels, and Amorphous Silicon Thin Film
    Monocrystalline panels are the most efficient panels and therefore have the min area to power ratio, highest cost operate well at moderate temperatures.

    Polycrystalline are the not as efficient panels as Monocrystalline, less cost than Monocrystalline panels, operate well at moderate temperatures.

    Amorphous Silicon Thin Film are low efficiency, lowest cost and operate well at high temperature. A large are would be required to achieve the same power as Monocrystalline panels.

    At Commercial Solar, we use only Monocrystalline Solar Panels.

  • Q: How much energy will I save with solar hot water?
    A: 

    A: A conventional electric storage hot water system can typically use around 35% of you electricity bill.
    With a solar hot water installed, you can save up to 80% of that 35%, depending on the type of system installed.

  • Q: How does solar hot water work?
    A: 

    With a roof mounted solar collector, the sun’s radiant energy heats the hot water collector. This heat is transferred into the liquid circulating through the hot side tubes. The liquid then travels back to the storage tank. It is circulated inside the pipe work and heat in the liquid is exchanged, increasing the temperature of the water in the tank. Once the heat is exchanged the cooler liquid travels back to the collection panel and process begins again.

    A backup electrical or gas booster element can supplement the heating process during winter or periods of low solar irradiation and high hot water demand.

    A Heat Pump solar hot water system operates similar to a household air conditioner or refrigerator, in reverse. Air is drawn into the heat pump with a fan and then through an evaporator which contains a special type of refrigerant. This refrigerant, R134a has a boiling point of -21oC, meaning that your heat pump will still function in extremely cold conditions.

    The refrigerant, now in gaseous form, is then compressed by the heat pump, which generates an incredible amount of heat. This heat is then transferred into the storage tank, heating your water storage tank for later use. Since the heat has been extracted from the refrigerant, the cool liquid returns to the evaporator to start the process all over again.

  • Q: What is the difference between solar hot water system and solar PV?
    A: 

    A solar hot water system consists of heat collection panel with water piping running though it, hot side and cold side pipework, a hot water storage tank and associated equipment such as valves, etc.

    A solar hot water system uses the sun’s free energy to heat hot water piping which circulates through a hot water system.

    A solar PV system consists of solar Photovoltaic (PV) panels, electrical cabling and associated equipment.

    In the case of a grid connect Solar system, the inverter feeds electricity to the grid at the same AC voltage that it is being supplied.

    In the case of an off grid Solar System DC electricity is fed to a battery bank that stores it for later use.
    One system uses water as the medium.

    The other uses electricity as the medium.

  • Q: How does a solar PV system work?
    A: 

    A: The light from the sun hits the solar panels which create DC electricity.
    This electricity flows through the cabling into the solar power inverter, which converts the DC into AC electricity which can be used by common appliances.

    In a grid-connected solar PV system, this AC electricity flows into the bidirectional (net) meter, located at the property meter box, which then sends the electricity into the property as free electricity.

    If electricity is being consumed at that point in time then this free electricity supplements the supply to the property, reducing the amount of electricity being purchased.

    If the solar PV system produces more electricity than is required, then this excess electricity flows back out into the grid.

    How Solar PV Works

  • Q: What is a solar energy (Photovoltaic or PV) system?
    A: 

    A Photovoltaic (PV) system consists of an array of solar panels which are designed to convert the sun’s light into Direct Current (or DC) electricity. These panels are connected to a solar power inverter which converts the DC electricity produced by the panels into usable Alternating Current (or AC) eletricity which is used by most appliances in your home today.

  • Q: How much solar do I need for my home?
    A: 

    Our friendly Site Inspectors will assess your family’s energy usage and other site specific requirements and provide you with an obligation-free quotation on a customised solar energy system designed to meet your specific needs.

  • Q: Why should I choose Commercial Solar?
    A: 

    Commercial Solar is part of a group of companies that are well established and have been in the Newcastle area for over 60 years. We won’t be going anywhere soon.

    Our company has a reputation for providing high quality products and services to our clients.
    We use high quality and high efficiency panels and associated equipment so you have the assurance that quality comes with a Commercial Solar installation.

    We assess the needs of our customers and design each system to meet their specific requirements.
    We provide complete project management including organizing the sale of your STCs.
    Our installation teams are fully accredited by Clean Energy Council, and have installed over 10,000 solar systems and come recommended by leading energy authorities

  • Q: What are the benefits of solar energy?
    A: 

    A Commercial Solar energy system:

    • Provides clean, green, renewable and quiet energy generation
    • Reduces the amount of energy you need to purchase from your energy retailer
    • Protects you against future energy price increases
    • Reduces your greenhouse gas emissions and carbon footprint, providing a brighter future for generations to come
    • Increases the value of your property
    • Creates a healthy solar industry, benefiting our Australian economy through local employment
  • Q: What is solar energy?
    A: 

    Solar energy is energy generated by the conversion of heat or light which is radiated by the sun.
    Solar products use this energy that is freely available and convert it into usable sources such as electricity or heat.
    Solar products are a clean, green, renewable and quiet source of power that last for many years.
    In general, solar products are low in maintenance requirements.