Reference Data
Embodied Carbon Emissions
Structural Quantities
Price & Myers; DeQo; C.Scale; RASMI; others → Request info
Structural quantities by building type by structural system
Structural Material Carbon Intensities
Assume concrete density 2400 kg/m3 and timber density at 450 kg/m3
Cladding Carbon Intensities
Cladding, roofing, and glazing units.
Interior Fit-Out Carbon Intensities
CLF TI Study (2018); C.Scale → Request info
Data best describes commercial office fitouts
Hardscape Carbon Intensities
Carbon Conscience; EC3/Building Transparency; C.Scale Internal Data → Request info
Based on standard hardscape details
Embodied Carbon Benchmark Values
Benke, B., Aurora J., Mel C., Simonen K., and Meghan Lewis. (2025). “The Embodied Carbon Benchmark Report.” Carbon Leadership Forum.
Benke, B., Chafart, M., Shen, Y., Ashtiani, M., Carlisle, S., Simonen, K. A Harmonized Dataset of High-Resolution Embodied Life Cycle Assessment Results for Buildings in North America (buildings dataset)
Embodied Carbon results in C.Scale reference the CLF WBLCA Benchmark Study v2 results
Operational Carbon Emissions
Carbon Intensity of Electricity, 2023-2050
Cambium 2023 (USA); EEA (EU); Dep't for Energy Security and Net Zero (UK)
Includes AER and LRMER metrics across three grid scenarios: Midcase, High Cost Renewable Energy, 95% decarbonization by 2045
Carbon Intensity of Electricity, 2051-2110
Extrapolation algorithm by C.Scale
Extrapolate 2050 Cambium estimate using average annual decrease across 2023-2050 for each geography. Or, assume 2050 value remains constant.
Refrigerant Charge
Quantities from Rodriguez 2019
Total refrigerant charge across all of a building's HVAC+R systems
Energy Use Intensity Benchmark Value
Zero Tool (North America); summary of EPC databases (EU and UK)
CBECS/RECS 2003
Carbon Storage and Sequestration
Landscape Carbon Sequestration
Biogenic Carbon Storage
CEN (2014). EN-16449: Wood and wood-based products - Calculation of the biogenic carbon content of wood and conversion to carbon dioxide
Hoxha et al (2020). Biogenic carbon in buildings: a critical overview of LCA methods. Buildings and Cities,1(1)
ACLCA, (2019). ACLCA Guidance to Calculating Non-LCIA Inventory Metrics in Accordance with ISO 21930:2017. ACLCA.
For timber structural elements.
*Full citation for Payette’s Kaleidoscope: Payette’s Kaleidoscope Embodied Carbon Design Tool, data from Tally by Building Transparency and KT Innovations, thinkstep, and Autodesk using industry representative LCI data unless otherwise noted. Accessed in November 2023.
Reference Data via API
The regionally-specific carbon Intensity data used in C.Scale is exposed via out API at the /api/carbon-intensities
endpoint. This is useful for populating tooltips and helper texts when C.Scale is integrated in your application.
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