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Does a Bigger Solar System Actually Pay Back Faster?

Written on . Posted in Charged Up Podcast.

Charged Up Episode 6: What this episode covers

  • What solar payback actually means
  • Payback vs ROI vs lifetime savings
  • Why bigger systems can offer better value
  • The importance of cost per kWpWhen a solar system becomes too big
  • How batteries can affect your payback
  • Why self-consumption matters
  • How electricity prices affect the calculation
  • Why generic payback figures can be misleading
  • What to look for when comparing solar quotes

Does spending more on solar actually mean you’ll wait longer to get your money back? Not necessarily.

In this episode of Charged Up, Simon Wray and Justin Canning break down one of the biggest misconceptions around solar: that a bigger system automatically means a longer payback period.

The reality is much more interesting.

Costs such as scaffolding, labour, design and installation can remain relatively fixed, meaning increasing the size of your solar array can potentially reduce the cost per kWp and improve the economics of the entire system.

But bigger isn’t automatically better either.

Your electricity usage, battery capacity, export limits, inverter size and how much solar energy you can actually use all play a part in finding the sweet spot for your property.

The biggest takeaway? Don’t design a solar system around hitting the cheapest headline price. A meaningful payback calculation should be based on your actual usage rather than a generic average, and the system should be designed around what your property genuinely needs.