Life Cycle Assessment (LCA) is a powerful tool for identifying environmental impacts, but its accuracy depends entirely on the quality of data collected. For manufacturers, building a reliable dataset before starting the assessment ensures credible results and actionable insights. The following sections outline the key categories of data that must be gathered in advance.

1. Major Details

Product Details

Manufacturers must document the annual production quantity for each product. Each product should have a clear breakdown of materials, quality grades, and parts used. Information about different versions or customisation options should also be included.

Manufacturing Process

Manufacturers should map each manufacturing stage, from the receipt and processing of raw materials to assembly, quality checks, and dispatch. This ensures that all process stages and inputs are accurately represented in the LCA.

2. Material Procurement

Raw Material Procurement

Manufacturers must provide a clear list of all raw materials used to make the product, including main ingredients, chemicals, and components. The quantity of each material required to produce one unit of product should also be specified.

Transportation

Manufacturers should record the location of their suppliers and the modes of transport used to deliver materials to the facility, such as truck, train, ship, or plane.

Packaging Materials

Manufacturers should record the materials used to package the finished product, such as cardboard boxes, plastic wrapping, tapes, labels, or pallets. The weight or quantity of each type of packaging material should also be noted.

Ancillary Materials

Ancillary materials are supporting inputs that do not become part of the final product but are essential for production. Examples include lubricants, maintenance oils, cleaning agents, process water, and consumables like cutting tools. These should be listed along with approximate quantities or usage frequency.

3. Energy Details

Electricity Usage

Manufacturers should collect data on the total electricity consumed in the facility, either monthly or annually. If sub-meters are installed, data on electricity used by specific machines or production lines should be included. The source of electricity — such as state grid, solar panels, wind energy, or a diesel generator — should also be identified.

Diesel Used in DG Sets

Manufacturers must record the total amount of diesel purchased and consumed for generator operation.

On-site Renewables

If on-site renewable systems such as solar energy are installed, the total electricity generated from these systems should be documented.

Coal, Wood & Other Fuels

Manufacturers should record the total quantity of coal, wood, or other biomass fuels used in the facility over a defined period.

4. Water Details

Water Source and Quantity

Manufacturers should identify the sources of water used in the facility, such as municipal supply, borewells, tankers, or rainwater harvesting systems, and record the total amount consumed. Where possible, process-specific water consumption should also be measured and reported.

Water Disposal Methods

Manufacturers should provide information on how wastewater is managed, including whether it is treated in an Effluent Treatment Plant (ETP) or Sewage Treatment Plant (STP), discharged into municipal sewage lines, or reused for other purposes within the facility.

5. Waste Details

Waste Type and Quantity

Manufacturers should identify and quantify all categories of solid waste generated in the facility, such as plastic waste, packaging waste, metal scrap, ash, organic matter, or hazardous waste.

Waste Disposal Method

Manufacturers must document the method used to dispose of or recover each type of waste. Common methods include recycling, landfilling, incineration, composting, or reuse within the facility.

Conclusion

High-quality data collection is not just a technical requirement but a step toward responsible manufacturing. Reliable LCA outcomes allow businesses to measure their environmental footprint and take informed action to reduce their impact.