A powerful, reliable tool for fast and accurate building energy analysis.

FREDS: the online tool for accurate, fast and data-driven simulations

FREDS is an advanced online platform offering a comprehensive assessment of the energy performance and comfort of buildings.

Considering climate, geometry, materials and usage, FREDS calculates energy needs and simulates building behaviour with EnergyPlus®, the most renown building simulation engine developed by the US Department of Energy.

Get accurate data on energy consumption, comfort conditions and environmental impact in minutes to improve your design choices.

A new standard for energy analysis

Global data: up-to-date and comprehensive climate, building materials and plant databases

Suitable for early design stages: perfect for preliminary studies and quick assessments

Multi-scenario analysis: compare multiple solutions in a few clicks

Fast and intuitive simulations:
guided setup with suggested input values

100% online: no installation, access anywhere and from any device

For construction professionals

architects, engineers and energy consultants who want to optimise building performance

For universities and research

academic institutions and laboratories in need of advanced tools for energy simulation

For integration into third-party platforms

integration via API to extend and automate energy analysis capabilities.

Customised consultancy services for every need

Do you need support in using the platform or interpreting the data? Our team of experts is always available to provide you with personalised advice and help you make the most of the potential of FREDS.