Wireless Charger

Material Composition Assumptions

This assessment assumes a typical wireless charger weighing approximately 250 grams with the following material breakdown:

• Plastic housing and insulation: 125g (50%) - primarily ABS or polycarbonate for durability and heat resistance
• Copper wire and coils: 50g (20%) - wound coils for electromagnetic induction charging functionality
• Silicon and ferrite inductive components: 37.5g (15%) - magnetic cores and power conversion elements
• Printed circuit board with integrated circuits: 25g (10%) - control electronics and semiconductor components
• Aluminum heat dissipation components: 12.5g (5%) - thermal management and structural elements

The material composition emphasizes electromagnetic components required for wireless power transfer, with substantial plastic housing to protect internal electronics and provide user safety.

Manufacturing Geography

Primary manufacturing occurs in China, which produces the majority of consumer electronics globally due to established supply chains and specialized component availability. The Chinese electricity grid operates at an average carbon intensity of 555 gCO2/kWh, reflecting the country’s mixed energy portfolio with significant coal dependence alongside growing renewable capacity. This manufacturing location choice stems from proximity to semiconductor fabs, metal processing facilities, and plastic component suppliers, enabling cost-effective integration of diverse material inputs required for wireless charging technology.

Regional Variation

Manufacturing Region	Grid Intensity	Estimated CCI Score	Adjustment vs Default
China	555 gCO2/kWh	52	Baseline
South Korea	436 gCO2/kWh	48	-8%
Germany	311 gCO2/kWh	43	-17%
Costa Rica	89 gCO2/kWh	35	-33%
Norway	17 gCO2/kWh	32	-38%

Provenance Override Guidance

Suppliers can submit the following data types to override the default CCI score with product-specific information:

1. Manufacturing facility electricity source documentation showing renewable energy procurement contracts or on-site generation capacity
2. Bill of materials with specific recycled content percentages for plastic housing, copper coils, and aluminum components
3. Transportation logistics data including shipping distances, modes, and fuel efficiency for primary distribution routes
4. Component supplier environmental product declarations for printed circuit boards, semiconductors, and magnetic materials
5. End-of-life material recovery rates and recycling partnerships demonstrating improved disposal outcomes

Methodology Notes

• The CCI score represents total lifecycle greenhouse gas emissions for one wireless charger unit including manufacturing, distribution, use phase electricity consumption, and end-of-life disposal
• Scope 1 and 2 emissions primarily reflect direct manufacturing energy and facility operations, while Scope 3 dominates through upstream material extraction and downstream electricity consumption during product use
• Functional unit assumes three years of typical consumer usage patterns with daily charging cycles
• Assessment excludes packaging materials, retail infrastructure, and consumer travel to purchase locations
• Use phase calculations assume average global electricity grid mix, though actual emissions vary significantly based on regional energy sources
• Data gaps exist around specific semiconductor manufacturing processes and regional recycling infrastructure effectiveness