Step 1
Enter the cadastral reference
The calculator queries the Catastro and obtains the floor area, the year of construction and the province of the property for you. No plans or measurements needed.
CAE calculatorFree and no commitment
CAE calculator: the real savings of your action, in minutes.
No more formulas by hand or spreadsheets: enter the cadastral reference and the equipment, and the calculator fetches the data from the Catastro and applies the official formulas of the CAE catalogue. Right here, with no sign-up.
- No cost, no sign-up
- Official catalogue formulas
- Real data from the Catastro
CAE savings calculator
Calculate your savings and receive it as a PDF · free
Your result will appear here
Search the cadastral reference and choose the equipment: the estimate is calculated instantly using the official formula of the RES060 datasheet.
Need the precise calculation based on the energy performance certificate (precise RES060, RES010/RES020 for the envelope)? It is available on the platform — or we calculate it for you, at no cost.
How it works
Three steps. No technical knowledge required.
Step 2
Choose the equipment you are going to install
Select the heat pump from the real equipment catalogue, with its official seasonal performance figures (SCOP).
Step 3
Get your savings in kWh/yr
The engine applies the official formula from the relevant datasheet and returns your certifiable annual savings instantly. Request a free study to turn it into a financial offer.
Real calculation
The same formulas with which we later process your CAE.
The calculator uses the same calculation engine we apply when processing real case files. That is why the result is not a hook: it is the starting point of the study we send you.
Calculate my savingsOfficial catalogue formulas
The calculation replicates the formulas of the standardised datasheets of the CAE system (Orden TED/845/2023), not a commercial rule of thumb.
Real data from the Catastro
Floor area, year of construction and province come from the Catastro portal using your cadastral reference, not from boxes filled in by eye.
Real equipment performance
The SCOP figures come from our database of real manufacturer equipment, the same one we use when processing case files.
The same engine we process with
The estimate uses the same calculation our platform applies to real case files: your result is the starting point of the study.
Available calculations
Official catalogue datasheets covered today.
We start with the most in-demand actions and keep adding datasheets. If yours isn't here, we calculate it for you: request a free study.
RES060
Replacing a boiler with a heat pump
Sector Residential
On this page
TRA050
Replacing a combustion vehicle with an electric one
Sector Transport
On this page
RES010 · RES020
Renovation of the thermal envelope
Sector Residential
On the platform (with energy performance certificates)
Frequently asked questions
Common questions about the calculator.
- Is the CAE calculator free?
- Yes. Using it has no cost and no commitment, just like processing with Sanwa: it is a free service for the client, you pay nothing at any point.
- What do I need to calculate my savings?
- For an air-source heat pump, just the cadastral reference of the property and the equipment you are going to install. For an electric vehicle, look up both vehicles in the official IDAE catalogue: the consumption figures fill in automatically and you can always adjust them.
- Is the result a real calculation or a commercial estimate?
- It is a calculation with the official formulas of the CAE catalogue datasheets, real data from the Catastro and real equipment performance. The quick estimate does not replace a personalised technical study: to lock in figures, request a free study.
- How do I turn the calculated kWh into money?
- Request a free study: we verify the action, process the CAE at no cost to you and pay you in the same week it is issued, with the fee you choose to retain.
More questions about the system? Check the 100 frequently asked questions about CAEs.
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