Overview
One Click LCA supports projects seeking certification under the GRIHA Rating System (Green Rating for Integrated Habitat Assessment), India’s national green building rating framework endorsed by the Ministry of New and Renewable Energy.
For embodied carbon reporting under GRIHA, the recommended calculation method in One Click LCA is the Level(s) Carbon tool, which aligns with the framework’s requirements for assessing building carbon impacts.
Scope of the Assessment
Coverage of embodied carbon impacts across A1–A5 (product and construction stages), B4 (replacements), and C1–C4 (end-of-life) stages.
Optional inclusion of D-stage benefits (recycling, energy recovery).
Results expressed in kg CO₂e/m² and total project emissions.
Certification & Compliance Scope
One Click LCA helps project teams address GRIHA criteria related to materials and embodied energy, such as:
Use of low-carbon and recycled materials
Substitution with fly ash and other industrial by-products
Reduction of embodied energy in structural and non-structural applicationsQuantification of embodied carbon emissions for building projects
Indicator to Report
GRIHA requires reporting of:
Global Warming Potential (GWP) – expressed in kg CO₂e
This is the only environmental impact indicator required under GRIHA.
Data Scope in the Tool
One Click LCA integrates:
EPDs (EN 15804/ISO-compliant) for construction products
Generic material datasets where EPDs are not available
Indian-specific data where applicable
Imports from BIM, Excel, or manual entry
Guidance
Create a project
Select the Level(s) Carbon tool in One Click LCA.
Set building area
Enter Gross Floor Area (GFA) for normalization.
Add materials
Import manually, via BIM, or Excel
Assign EPDs or generic datasets
Add transport distances, wastage, and service life
Run calculations
Outputs include total and stage-by-stage GWP results (kg CO₂e)
Viewing and Downloading Results
Stage-by-stage embodied carbon (A–C, optional D)
Material-by-material contributions to GWP
Graphical and tabular results
Exportable reports formatted for GRIHA submissions
Special Features
Single-indicator focus (GWP): Directly aligned with GRIHA requirements
Evidence-ready outputs: Suitable for inclusion in certification documentation
Indian-context alignment: Supports local materials and energy profiles
Use Cases
The GRIHA carbon assessment in One Click LCA can be used for:
Demonstrating compliance with embodied carbon credits
Substantiating material choices and fly ash use
Benchmarking carbon performance across Indian projects
Providing auditable CO₂e evidence for certification