A product carbon footprint (PCF) is the total greenhouse gas (GHG) emissions associated with a product across a defined life cycle, expressed as kg CO₂-equivalent (kg CO₂e). It converts different GHGs (CO₂, CH₄, N₂O, etc.) into a single climate-impact unit using global warming potential (GWP) factors.
A PCF is usually calculated for a specified boundary, such as:
– Cradle-to-gate: raw materials → manufacturing → factory gate
– Cradle-to-grave: includes distribution, use phase, and end-of-life
– Cradle-to-cradle: includes end-of-life with recycling/circularity assumptions (method-dependent)
Why PCF Matters in EV Charging Hardware
For EV chargers and related equipment, PCF is increasingly requested in tenders and supplier assessments. It helps:
– Meet customer requirements for ESG reporting and low-carbon procurement
– Provide comparable climate-impact data across product variants and suppliers
– Identify emission “hotspots” (materials, electronics, logistics, packaging) to target reductions
– Support credible environmental claims and sustainability documentation
– Prepare for supply-chain transparency expectations in manufacturing and infrastructure projects
What’s Included in a PCF Calculation
A PCF typically considers emissions from:
– Materials and components (metals, plastics, PCBs, cables, coatings)
– Manufacturing processes (assembly energy, machining, testing, scrap)
– Upstream transport (suppliers → factory)
– Packaging (cardboard, protective materials, pallets)
– Outbound logistics (factory → customer/site), if included in boundary
– Use phase (if included): efficiency losses, service visits, spare parts
– End-of-life (if included): recycling, disposal, transport, processing impacts
How PCF Is Calculated (Typical Workflow)
A PCF calculation generally follows these steps:
– Define functional unit (e.g., “one EV charger unit” or “one charging point”)
– Set system boundary, cut-off rules, and allocation approach
– Build a BOM-based inventory: material masses, component groups, processes
– Collect primary data (energy use, scrap rates, transport distances) where possible
– Apply emission factors and supplier data (EPDs) to convert activity data into kg CO₂e
– Sum results by life-cycle stage and component group for hotspot analysis
– Document assumptions, data quality, and uncertainty for auditability
Common Output Formats
PCF results are commonly delivered as:
– Total PCF (kg CO₂e/unit)
– Stage breakdown (materials vs manufacturing vs logistics, etc.)
– Component hotspot breakdown (housing, electronics, cables, packaging)
– Data quality statement (primary vs secondary data share)
– Sensitivity checks (what variables drive the result most)
Practical PCF Reduction Levers (EV Chargers)
Typical reduction opportunities include:
– Use of recycled/low-carbon aluminium or steel for housings and frames
– Lower-mass mechanical design and optimized material thickness
– Supplier engagement for lower-carbon PCBs and electronics manufacturing
– Renewable electricity for assembly and testing
– Packaging redesign (recycled content, reduced plastics, optimized palletization)
– Logistics optimization (consolidation, route and mode changes)
– Design for repairability and longer service life
Limitations and Practical Considerations
– PCF results depend strongly on boundary choices and assumptions
– Data availability can be limited at component level; secondary data may be needed
– Allocation rules and recycling assumptions can materially change results
– Comparisons across suppliers require consistent methodology and functional unit
– PCF covers climate impact only and does not replace full LCA categories
Related Glossary Terms
ISO 14067
Life Cycle Assessment (LCA)
Environmental Product Declaration (EPD)
Emission Factors
Scope 1 / Scope 2 / Scope 3
Cradle-to-Gate
Cradle-to-Grave
Embodied Carbon
Supply Chain Emissions