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Solar Break Even Calculator

Instant CALCULATION!

Could You Break Even on a Solar Installation in 3-5 Years?

The solar calculator below is the only one in Jávea and surroundings (that we know of) which estimates your break-even period – also called your “payback period”.

In 2-3 minute, you will find out:

  • Your recommended system size
  • Expected annual savings for the next 10 years
  • Expected break-even period
  • Estimated installation cost
Using the Solar Break-Even Calculator

You’ll need an electricity bill to use the solar break-even calculator.

Any electricity bill for your property dated within the last 6 months will let you use the calculator and generate an instant result.

PLEASE NOTE: This Solar Break Even Calculator does not factor in the cost of a solar battery. If you’d like a break even estimation including a solar battery, heat pump, car charger or any other appliances you can click here.

Solar Break Even Calculator ↓

FREQUENTLY ASKED QUESTIONS

How to Use the Solar Break Even Calculator

How long does the calculator take?

There are 2 steps which should take no more than 1-2 minutes to answer.

The result is generated instantly.

What do I need to use the calculator?

You need a copy of an electricity bill for your property in Spain to hand.

The Solar Break Even Calculator asks for your electricity consumption (in kWh) and bill amount (€).

This is to calculate your current electricity costs (€/kWh) and produce a break-even estimation result.

You will need a bill from the last 6 months.

What if my electricity consumption is low?

The calculator does not estimate a system size under 4kW. If your property has an average electricity consumption under 500 kWh per month – or under roughly €90 – your payback period may be longer than 3-5 years.

What if my property is a new build or a new home?

The Solar Break Even Calculator uses your existing electricity consumption to calculate your break even.

It will not work if you have no electricity bill yet for your property.

If you still want a break-even estimation for your new property in Spain, you can click here.

Do I need to give my contact information?

No.

After completing the calculator, you have the option to request a site visit and formal quote from a MiSolar technician.

This is optional.

If you accept, you will need to provide a telephone number.

If you leave the page, none of your data is retained by this website.

How accurate is the Solar Break Even Calculator?

The Solar Break Even Calculator is the most accurate solar calculator we know of in Spain.

This is because:

  • It uses localised climate data for the Costa Blanca North to estimate the system size you need (in kW)
  • It uses recent quotes in 2025 to estimate the break-even for systems of the same size
  • It provides two break-even results: based on your electricity savings alone and based on your electricity savings + government incentives factored in
  • It estimates your annual savings based on your current electricity costs (€/kWh) with your current provider
  • It accounts for a slight and normal decline in the output of your solar panels and an inflation rate of 1.9% over the next 10 years