Can a system be up-scaled later on?

Up-scaling is possible but largely depends on the system size that you are looking for. As a general rule it is harder to expand upon smaller system sizes (1kW to 3kW systems) although not impossible.

Below are a few things you should keep in mind when deciding on your system size with the potential to expand it at a later date:

Inverters

  • Inverter size is the key factor to consider when choosing your system
  • Smaller inverters have less capability to add on additional panels
  • Over-sizing is possible but again, the smaller the inverter the less flexibility to upgrade
  • Medium size inverters (specifically 4 and 5kW inverters) are the most flexible as they are designed with a second MPPT tracker (Maximum Power Point Tracker)
  • Larger inverters are not all equipped with a second MPPT tracker

Depending on your system we may recommend you get small or medium size inverters to suit your needs

A second MPPT tracker allows you to:

  • Add a different type of panel at a later stage
  • Place panels facing a different direction due to its capacity to accommodate the different voltages generated by the two strings of panels

If you are going to expand your system keep in mind:

Panel type

  • The panel voltage and watt rating will need to be relatively similar to your existing system in order to function properly.
  • Technology is continually improving, a panel may be discontinued if you wait too long to upgrade – which makes it hard to source more of the same
    Location of the panels.
  • If you were to place the extra panels on a different facing roof you will need an inverter with a second MPPT tracker or a separate inverter.

 Cost

  • Additionally there is the 2nd round of installation costs to take into consideration; this makes most small upgrades uneconomical.

Time & Technology

  • Technology keeps getting better, if you are hoping to expand in the short term then a larger inverter with a plan to upgrade in a short timeframe might suit your needs just fine.
  • If you are looking to wait another year or more we would suggest that you size your current system to suit optimal performance and to install another full inverter/panel set-up at a later date.

Our Recommendation

  • If you are choosing between a number of systems, it is recommended that you make a choice once with no plans to upgrade at a later stage; unless the upgrade will follow in a relatively short timeframe.
  • This will allow your system to perform at its maximum operational output; and ultimately, you could consider putting in another independent solar system in addition to the one you already have installed.

All Common Questions

How much will a solar electricity system cost me?

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I want to go completely off the grid, can I do that?

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How do I choose which solar electricity system is best for me?

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How long will my solar electricity system last for?

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How long does it take to get a PowerSmart solar electricity system installed after I order it?

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Who buys back excess electricity?

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What is the difference between grid-tied and off-grid solar electricity systems.

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What is a hybrid solar electricity system?

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Do solar electricity systems require council consent?

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Do solar electricity systems require maintenance?

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Are there Government subsidies?

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How much extra load do the solar panels put on the roof?

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Where are the solar panels and inverters manufactured?

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Will my roof orientation and roof slope affect my solar electricity system performance?

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What is the difference between monocrystalline, multicrystalline (or polycrystalline) and thin film solar modules?

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What is the difference between kW and kWh?

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Can I still use all of my electrical appliances at all times?

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Will I still have power if there is a grid power outage?

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Is a grid connected solar electricity system environmentally friendly?

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Can solar panels resist salt, sulphur, strong winds & hail?

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Do you install on all types of roofs?

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How can I reduce the amount of power used in my home?

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I have three phase supply to my house, do I need to get a single phase inverter or a three phase inverter?

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Can I keep my current electricity retailer?

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Does the mounting system allow airflow under the panels to help cool them?

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What will my electricity bill / rebate look like?

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Can I see how much electricity my system is producing?

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Can a system be up-scaled later on?

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What is internalised power usage?

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Testimonials

"We have never had a project go so smoothly, they finished two weeks ahead of schedule."

Dan Udy - Director: Udy Group

"We deal with a great number of contractors and would rate PowerSmart's delivery onsite as amongst the very best"

 

Jason Happy - National Facilities Manager at Kiwi Property

We are delighted to be supplementing our existing renewable energy supply, which already incorporates solar water heating, wind and biological initiatives with solar PV electricity. This will certainly assist us achieve our ultimate goal of self-sufficiency.”

Peter Yealands founder Yealands Estate Wines.