What is LCA?

Life Cycle Assessment, or LCA, is a scientific method that evaluates the environmental impact of products and services.

Developed over nearly 35 years by scientific experts, it is now considered to be the most reliable, robust and comprehensive approach to environmental assessment.

A 360° approach

LCA follows 3 principles that allow for a holistic, detailed and comprehensive analysis of the environmental impacts of the product.


It is multi-stage, because it focuses on all stages of the product life cycle: from manufacturing to the end of life, including the distribution of the product and its use.


It is multi-criteria because all the environmental impacts of the product are calculated and analyzed, such as greenhouse gas emissions, the depletion of natural resources, ecotoxicity, or even the eutrophication of water.


It is multi-systemic, meaning that each stage of the product life cycle can itself be based on a separate subsystem, which can also be the subject of a dedicated LCA.

Life Cycle Analysis is a process that is divided into 5 steps

Step 1. Objective and scope of the study

Several parameters are defined that set the framework of the LCA: objective of the study, scope studied, desired application (eco-design, regulatory, communication, etc.), functional unit, etc.

Step 2. Life Cycle Inventory (LCI)

All the data corresponding to the life of the product is collected, from its manufacture (extraction of raw materials, materials, treatments, assembly), to end-of-life treatment solutions, including transport data or even data on use and maintenance.

Step 3. Modeling and calculation of indicators

Each data is modelled within an LCA software that carries out environmental impact calculations. The impacts taken into account are defined during step 1.

Step 4. Formalization of results

The results of the study are formalized in reports whose format and content vary according to the objective defined during stage 1: audit report, environmental labelling, interpretation, etc.

Step 5. Exploitation of the results

LCA data and results can be used in many ways: regulatory compliance, eco-design strategy, carbon balance enhancement, consumer information, extra-financial reporting, etc.

Products LCA, creating opportunities for manufacturers.

LCA, through its multiple applications, is becoming a source of multiple opportunities for businesses.

Comply better

Regulations in terms of information and/or environmental performance are tightening at different scales, geographical and sectoral: Climate Law, RE2020, European EPD, CSRD... making LCA progressively mandatory to continue the distribution of your products.

Selling better

The business challenges that LCA can respond to are more and more numerous. Indeed, your customers (consumers, distributors, professionals) are increasingly demanding in terms of environmental information. LCA then becomes a powerful marketing and communication tool that allows you to respond to these new challenges.

Plan better

LCA is a tool that can be nested within CSR policies and more global action plans: enriching your carbon footprint, integrating it into extra-financial reporting, putting in place a strategy to reduce the impact of your organisation, etc.

Design better

The use of the data collected and the analyses carried out make it possible to deploy an eco-design strategy in order to reduce, prior to their manufacture, the impact of your products throughout their life cycle.


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Just over a year ago, we were looking for an LCA and PEP solution for our industrial customers and supplier partners, and came across Qweeko's offer. One of our major suppliers volunteered to test the solution and compare the results with analyses previously carried out by an LCA expert. Our supplier's feedback was clear: faster, simpler, and completely consistent results. I then presented Qweeko to a customer in the electric panneling trade who was looking to understand this new world for his company. Qweeko's very didactic approach enabled my client to be reassured about the seriousness of the proposal and to place an order very quickly. Qweeko went through the process with the customer, proposed a schedule for the deliverables and finally kept its commitments to him. It's a success story that we'll be replicating with other customers and suppliers in the coming weeks. For all these reasons, Rexel has signed a contract with Qweeko.

Benoit Ribault

Director of Projects, Innovation and Services


Having already had some experience of LCA and PEP creation, it was easier to assess Qweeko's work and the collaboration proved to be very positive. We found a team driven by a genuine interest in sustainable development and a thorough knowledge and understanding of the PEP and LCA environment as well as industrial constraints. Very professional, very efficient and very satisfying.

Gwenaëlle Saliou-Secretan

Head of LCAs Zehnder France


I'm delighted with the successful collaboration we've had with Qweeko. ITEC was able to carry out life cycle assessments and draw up PEP sheets for its flagship products in fast-track mode, thanks to the talented team at Qweeko. I'd like to thank them for their professionalism, efficiency and friendliness! Thank you to our partner Rexel for putting me in touch with them.

Maria Lajaate

Sales director

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