Frequently asked questions

What size system do I need to cover my energy bill?

This is one of the most common questions our clients ask us, one with many variables for us to consider – the direction and slant of the roof we can mount the panels on; your average daily consumption; do you incur a lot of shade over the panel installation area; do you have a pool or air conditioner; how many people live in the household; and so on. As such, it is difficult to give a generalised answer, and why we prefer to visit your home for a site inspection where we can tailor to your needs.

How much will I save by installing solar (& a battery)?

If any solar company tells you “You’ll never pay for power again!” you’d think it was fantastic – unfortunately this is not the case. Solar will cover your daytime use and, if combined with batteries, will allow you to store and use the power you have generated into the evening. In most cases you will receive a bill, our aim is to reduce that bill as much as possible.

With a well sized system, you can expect an approximate saving of 50% off your bill – this may vary and be dependent upon how well you utilise your system to make the most of your solar generation. Our team can help with tips and tricks to reap the maximum benefits. Adding a battery can further your savings by an additional 25% though once again this is dependent upon your usage. One of the services we provide when we deliver your quote, is to calculate the projected savings you will incur on your power bill, including a projected time frame in which your solar system will have paid for itself via the savings you make on power.

How many panels will go on my roof and where do they go?

The amount of panels, or size of system available, is dependent on the existing roof space at your home, the direction your house is facing, and if your roof is shadowed by trees, rooftop appendages such as antennas, pipes, etc., as these will also impact your system’s ability to generate power.

The placement of our panels is designed to maximise the sun’s exposure during the day – usually favouring a north or north-west aspect to utilise the sun’s rays well into the afternoon, though an east/west split array can also function quite well.

Why do we use Jinko, Hyundai and REC panels?

Jinko Solar panels are good quality, well-priced panels from one of the largest manufacturers on the planet. Jinko have a strong Australian presence and good Australian support. The Tiger N-Type series are some of the most effective with efficiencies up to 22.53%, which is world class. They carry a 25-year product warranty with a 30-year performance warranty and have a great replacement policy.

Hyundai is one of the biggest consumer brand names in the world and, as a long-established international brand, Hyundai Solar panels have been installed within Australia for over 10 years. These panels are also approved for installation in the Northern Territory as they have been tested rigorously and are able to withstand Australia’s harshest conditions including heavy snow, strong winds and intense temperatures. They carry a 25-year product & performance warranty.

REC (Renewable Energy Corporation) was originally founded in Norway and now production is based in Singapore. They have a 20-year product warranty and are certified as corrosion resistant. They are a quality panel with consistently good reviews and ratings from installers and customers alike.

What is the difference between AC and DC Systems?

Your home uses AC (Alternating Current) Electricity, while solar panels produce DC (direct current) Electricity. A solar array requires an inverter to convert the power from DC to AC. The advantages of an AC system (micro inverters converting the electricity on the back of each panel) are that you have fewer losses from shading, soiling, or overcast days. Microinverters deal with smaller loads of electricity, making them safer and more efficient, and don’t have large current passing through from the panels to an inverter mounted to the wall of your home. Enphase microinverters are dust-proof, engineered and tested for over a million hours to ensure the safest, most efficient and reliable inverter in the world.

What is a feed-in tariff and how much will I get paid?

A feed-in tariff is where a grid-connect system owner is paid for the excess electricity their system generates by their Electricity Retailer. Depending upon your location you may receive between five (5) cents and ten (10) cents per kWh (kilowatt hour). You will need to negotiate with your Retailer, however, please check that the higher feed-in tariff doesn’t mean a boosted purchase rate when buying electricity back from the grid.

What type of Warranty is supplied with the system?
  • Solar Panels: Minimum 25-Year Manufacturer Product warranty with a minimum 25-Year Performance Guarantee (depending on which panel you choose)
  • Microinverter/s: 10-year manufacturer product warranty
  • Rack & Rail (Mounting system): 10-year manufacturer product warranty
  • Workmanship: 5-year Installer workmanship warranty (This covers whole of system)
What happens with Grid-connect systems during a blackout?
The grid-connected inverters and Envoy will automatically shut down within a few milliseconds of a blackout, thus avoiding the potential of a dangerous “brown-out” in your home and to also prevent back-feeding into the grid. Even though you have a solar system, during a blackout you will not have power available. If you want to have electricity available during a blackout then, ultimately, battery backup is a possible solution.
How long does it take to install my system?

Once you have paid your deposit, and the relevant approvals have been obtained from the various State authorities, installation should occur within 3-4 weeks. This time frame allows us to order your stock and schedule you in with our installation team on a day that suits you. It generally takes one day, or less, to install your solar system.

Is there any maintenance involved?

There is! The same as you would service and maintain your vehicle, which won’t make you money, it is recommended that your solar system be cleaned regularly. This is part of the service we offer at Planet Power, called a Health and Safety Check.

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