What is an energy simulation?
A energy simulation it is a dynamic bioclimatic analysis that allows diagnose y optimise the project the design team is working on and make changes that significantly affect energy performance.
The purpose of energy simulation goes beyond regulatory verification or energy certification.

What is an energy certificate?
One Energy performance certificate It is a regulatory verification that allows the comparison of annual consumption and demand against regulatory values, to verify compliance with energy savings. DB-HE of the CTE and issue a Energy Performance Certificate, but it does not make it possible to identify exhaustively what we must do to improve its energy performance.
The aim of an energy audit cannot be to compare pre-set indicators against limit values, but rather to be able to carry out an exercise technical-economic of the different elements that make up the building and choose those that are the most great throughout the lifespan of the building.
In short, an energy performance certificate IT IS NOT A VALID TOOL for project decision-making because it uses an overly basic methodology.

An energy performance certificate IT IS NOT A VALID TOOL for project decision-making because it uses too basic a methodology, the ideal tool is a dynamic energy simulation.
What benefits does an energy simulation have?
- Identify which parts of the envelope there are more energy losses from the building
- Find the best volumetrics y solar orientation according to the project's features and bioclimatic conditions
- Optimise compositions y thicknesses of the envelope closures
- Optimise thermal properties of the windows by solar orientation
- Improve the thermal comfort user's
- Choose the best ones sunscreens depending on orientation and solar incidence
- Avoid oversizing the climate control systems calculating the thermal loads
- Choosing strategies for natural ventilation for cooling
- Measure and optimise the project consumption
- It can be used to qualify for international certifications how LEED
- Accessing grants such as the Next Generation funds o PREE

What is the best time to run an energy simulation?
The sooner the better. Do energy modelling in a early stage of the project (pre-project or basic project) makes it possible to achieve a energy saving up to 45% on average compared with a reference building.
Thanks to energy simulation, the design team can decide which systems will be the most efficient, depending on the weather conditions, the type of building to be designed and its use.

En Evaluate We are pioneers in Spain in the development of environmental consultancy processes for the real estate and office sector. Our projects are often framed within the context of international environmental certifications such as LEED, BREEAM, WELL or Passivhaus. The result is an optimised project, in terms of both environmental performance and cost.

Francesc Borrell Forner, Sustainability and Energy Efficiency Consultant
Espacios Evalore SLP