Real example
This is what a complete study looks like.
Anonymized real project. Single-family dwelling of 72 m² built (64 m² usable), climate zone A3. Download the free sample.
Your client asks you for the certificate. We produce the complete report + XML for registration.
You just read, sign, and bill.
The problem
You're a certifying technician. Your job is to sign, not to lay out reports.
But every certificate eats up hours of mechanical work.
Taking field data, organizing photos, drawing sketches, cataloging rooms. Every dwelling takes 2-3 hours before you sit down at the computer.
Entering each enclosure, each opening, each installation. Verifying thermal transmittances, surfaces, orientations. Mechanical and repetitive work.
Laying out the PDF, inserting photos, filling in tables, writing recommendations. All so the client only looks at the energy label letter.
Preparing the XML, uploading it to the electronic registry, waiting for validation. Yet another procedure that eats up your time.
The solution
You send us the field data and we produce everything: report, Excel, XML for registration, and photo set.
Photos of the property, measurements or sketches, and an audio or text describing the project. What you already do during the visit.
→In less than 24h you receive: laid-out PDF report, Excel with technical data, pre-filled XML for CE3X, photo set, and checklist.
→You review the report (10 min), import the XML into CE3X, generate the final version, register with the regional ministry, and bill your client.
What's included
Real example
Anonymized real project. Single-family dwelling of 72 m² built (64 m² usable), climate zone A3. Download the free sample.
Key differentiator
We deliver an XML file compliant with the official CTE/MITECO v2.1 schema with all the building's data pre-filled. You import it into CE3X, calculate, and you're done.
Compliant with the official CTE/MITECO v2.1 schema — Validatable at visorxml.codigotécnico.org
Our XML includes all sections: DatosDelCertificador, IdentificacionEdificio, DatosGeneralesyGeometria, DatosEnvolventeTermica (enclosures + openings), InstalacionesTermicas, Calificacion, and MedidasDeMejora.
Compatible with CE3X, CE3, and CERMA (programs recognized by MITECO) — Validatable in the CTE XML Viewer from IETcc-CSIC
Why us
Workflow process
You make the visit to the property. You send us photos, measurements, and a description by audio or text.
In less than 24h you receive: PDF report, Excel, pre-filled XML, cataloged photos, and checklist.
You import our XML into CE3X, verify data (10 min), calculate the energy rating, and export the final XML.
You upload the XML to the regional ministry's electronic registry. You obtain the official label. You bill your client.
Start now
Send us the data of your next project. No surprises or hidden costs: we agree on the price, you transfer, and in 24 hours you have the complete study ready to sign.
Or email us directly: studio@eficiencial.com · +34 674 786 386
CE3X Guide
CE3X is the official program recognized by MITECO for the energy certification of existing buildings. Our service eliminates 90% of the mechanical work by delivering a pre-filled XML with all the building's data.
The usual certification process is laborious: the technician visits the property, takes data on the thermal envelope (walls, roofs, floors, openings), the thermal installations (heating, cooling, DHW), and the building's geometric conditions. Then they manually enter each data point in CE3X: each enclosure with its thermal transmittance, each opening with its solar factor, each installation with its performance.
Our pre-filled XML compliant with the CTE/MITECO v2.1 schema contains all the necessary sections: DatosDelCertificador, IdentificacionEdificio, DatosGeneralesyGeometria, DatosEnvolventeTermica (opaque enclosures + openings), InstalacionesTermicas (DHW, heating, cooling), InstalacionesIluminacion, Calificación, and MedidasDeMejora. The technician only has to import, verify values, calculate, and export.
Once the technician generates the final XML from CE3X, they upload it to the electronic registry of their autonomous community to register the certificate in the official registry. In the Canary Islands, the procedure is carried out at the electronic registry of the Government of the Canary Islands (procedure 3137 — Registration in the Energy Efficiency Certificates Registry, SICAC). The XML can be pre-validated in the CTE XML Viewer from the Eduardo Torroja Institute (IETcc-CSIC) to ensure it complies with the official schema before registration.