Solar Break Even Calculator


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

The solar calculator below is the only one in Spain that estimates your break even.

Within 2-3 minutes you will also find out:

  • Recommended system size (in kW)
  • Expected annual savings for the next 10 years
  • Expected break even period
  • The maximum tax rebate and property tax reduction (IBI) available to you
Using the Solar Break Even Calculator

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

It doesn’t have to be your latest one.

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 ↓


How to Use the Solar Break Even Calculator

How long does the calculator take?

There are 4 steps which should take no more than 1-3 minutes to answer.

The result is generated instantly.

What do I need to use the calculator?

You need a copy of your 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 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 work for properties with an average electricity consumption under 450 kWh per month – or under roughly €90.

This is because the break even or payback period is significantly longer.

If your consumption is lower than 450 kWh and you’d still like a break even estimation for your property you can click here.

What if my my property is a new-build or 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 in 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?

You need to provide a email address.

The calculator sends a result to your email for you to keep.

After completing the calculator you have the option to request a more accurate break even estimation from a MiSolar technician.

This is optional.

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

If you decline, 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 in Spain.

This is because:

  • It uses localised climate data for the Costa Blanca North estimate the system size you need (in kW)
  • It uses recent quotes in 2024 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