Solar System Quotes SA

Brad002 on 14/06/2019 - 15:36
Last edited 15/06/2019 - 15:32

Hi all

Looking for some advice on deciding on the below systems I've been quoted from reputable companies here in SA

  1. 9.135 KW (29 x Canadian Solar 315MS), Fronius Symo 7 $6700
  2. 9.135 KW (29 x JA Solar 315), Fronius Symo 7 $6850
  3. 10.64 KW (28x JA Solar PERC Half-Cell Module JAM72S03-380/PR, Fronius Symo 8 OR
    10.71 KW (34 x JA Solar 315), Fronius Symo 8.2 $7100

From all reading it appears Canadian Solar and JA Solar panels are on par

Option 3 I am aware that the 380 Half Cells panels are 'commercial', however this company will also do 315's standard JA Solars for the same price if this is a concern. Is there any problem with the bigger panels? roof space is not an issue whatsoever. 3 also subcontract install but is rated #1 on Solarquotes

Update
I do have 3 phase power

Home & Garden Solar Energy System

Comments

  • GoldenDragon888 on 14/06/2019 - 16:17
    +1

    A Solar system I would imagine would be very expensive. I gather one had to drop a planet from it’s description, wasn’t big enough or something. Typical agents always make things seem bigger than they are.

    • Eeples on 14/06/2019 - 20:08
      +1

      Old contracts are still available (if you look around) that include Pluto. Otherwise you will need to write in a clause dealing with dwarf planets and sundries (such as moons).

  • scatman00 on 14/06/2019 - 16:24

    I'm sure you are already aware of the restriction of 5kw output limit and are one of the lucky ones that can go bigger?

    • Nugs on 14/06/2019 - 17:05

      jeez, it was 10kW limit when we did it 7 years ago (or 30 for 3 phase)
      .

  • choboko on 14/06/2019 - 17:25

    Do you have 3 phase power supply? If not, maximum export is 5kW. Hence most installs are 6kW or so due to ineffiencies.

    • Brad002 on 15/06/2019 - 08:33

      Yes 3 Phase

      • choboko on 15/06/2019 - 12:08

        The inverter max export is 7kW. You could upgrade to a larger inverter to - in the event of a sunny 26ish degree day, you get the full 9kW of solar, but it's up to you to calculate if it's worth forking out for the larger inverter.

        • Brad002 on 15/06/2019 - 14:20

          Would something like this effect me then on a bigger system say if I dont self consume a lot of the generated energy

          https://www.sapowernetworks.com.au/data/304457/small-embedde…

          • choboko on 15/06/2019 - 15:23

            @Brad002: @Brad002: You have to look around your area to see how much solar is there. All new inverters would have a function to reduce export as too much solar (with not enough load) will cause voltage to rise. You're in the SEG category until you want to install more than 30kW.

            Basically if you really want to maximize your solar then you'd want to run all your appliances during the day.

            • Brad002 on 15/06/2019 - 15:31

              @choboko: For instance - If I take the syatem with a 8.2kw inverter. Its a sunny day and the solar is predominately being exported with little self usage - is this size system going to run into the export limit issue?

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