Solar vs other ways to use the same money

If you had €6,700 to spend, how does solar compare to a savings account, government bonds or the stock market? An honest, number based comparison over 15 years.

What it does

An honest, number based comparison of putting €6,700 into a 5 kWp solar system versus a savings account, Portuguese government bonds or the stock market over 15 years. The full tool lets you try other amounts (€4,200 or €9,800) too.

  • Real annual return rates for each option, no sales spin
  • Compares value after 15 years, side by side
  • Explains why solar wins on risk even when stocks win on paper

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Example: value after 15 years on €6,700

Solar (5 kWp)11,357
Global stock index18,486
PT govt bonds (10y)10,747
Savings account9,017

Try €4,200 and €9,800 system sizes in the full tool.

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