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energy calculator

Calculate the energy efficiency of your home

This tool provides the client with information on the estimated energy savings of a home with an energy rating. Regarding another with a different type of rating, calculated according to the `Energy rating scale. New construction buildings`, published by the IDAE and the Ministry of Housing, in May 2009 and other regulations that complement and / or replace it .


Housing Type

M 2 of the house


Your current home

Energy consumption

Your new home

Energy consumption

Economic savings

With an efficient house

Savings in electricity and Gas


This simulation is merely an illustrative estimate based on the data provided by the user. In no case should it be understood as an exact valuation, as it could vary depending on the products contracted from the chosen energy supplier. Culmia does not have this information nor is it linked to the energy suppliers, so the results provided by this tool in no case constitute a contractual offer or imply in any way the authorisation of any transaction, nor the establishment of a commitment or legal bond. Furthermore, it is possible that the estimates provided may not have taken into account other additional costs or tax payments.

What is this energy calculator for?

Estimated calculation of the energy savings of a typical 95m2 useful house with A rating compared to a reference home with an F rating, according to the `Energy rating scale. New construction buildings`, published by the IDAE and the Ministry of Housing, in May 2009; and other regulations that complement it and / or could replace it.

The savings have been calculated taking into account the different services consumption (heating, cooling and DHW). The cases that the tool contemplates are simulations for informational purposes only and therefore Culmia does not assume any responsibility or obligation in this regard.

This tool is a starting point for anyone interested in knowing the approximate amounts associated with living in a house with one or another energy certification. To obtain an exact quote, we recommend consulting a specialized professional. All we want is to accompany you in the process of buying and selling your home and give you the best online tools for free but there may be deviations or errors because we are not a specialized service