This guidance is primarily aimed at public procurers involved in a range of contracting agreements related to building materials and products. This includes the purchase of building materials for construction works, but may also extend to material extraction, manufacturing, building, retrofit, refurbishment, design, interior fit out, and end-of-life demolition or deconstruction processes. 

This whitepaper focuses on the tradeoff between operational savings and embodied carbon, which are resulting from retrofit activities. The research presented in this report marks the starting point to shed a light on the relevance of embodied-carbon emissions resulting from energetic retrofits.

This tool allows architects and designers to analyze and estimate the carbon equivalent of emissions associated with all aspects of the project. The Zero Carbon Tool gives an overall picture of how key decisions made at early stages of design can impact the project's total carbon use.

Whole life carbon assessment 2nd edition will enable professionals to make prudent decisions to limit the whole life carbon impact of buildings and infrastructure. It facilitates carbon measurement from the production of construction materials to the design, construction and eventual end of life of built assets.

WUFI - Oak Ridge National Laboratory (ORNL)/Fraunhofer IBP is a menu-driven PC program which allows realistic calculation of the transient coupled one-dimensional heat and moisture transport in multi-layer building components exposed to natural weather. It is based on the newest findings regarding vapor diffusion and liquid transport in building materials and has been validated by detailed comparison with measurements obtained in the laboratory and on outdoor testing fields.

Provided by the N.C. Clean Energy Technology Center, DSIRE is a database of incentives and policies to support renewables and energy efficiency in the United States.

NREL's PVWatts® Calculator Estimates the energy production of grid-connected photovoltaic (PV) energy systems throughout the world. It allows homeowners, small building owners, installers and manufacturers to easily develop estimates of the performance of potential PV installations.

The Sefaira tool uses industry-accredited analysis engines for modelling and comparison of different building designs.  This enables a fast performance assessment across a range of metrics - energy use and carbon emissions, thermal comfort, daylight and HVAC.

Insight is a tool aimed at architects and engineers to support design of more energy-efficient buildings, using advanced simulation engines, and integration with Revit.

The Building Energy Modeling (BEM) sub-program is an important part of BTO and its Emerging Technologies Program. BEM is a versatile, multipurpose tool that is used in new building and retrofit design, code compliance, green certification, qualification for tax credits and utility incentives, and even real-time building control.