Energy Systems LCA Approach
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Project Assignment
Title: Developing Low-Emission Energy Pathway for [Chosen Heavy Industry Sector]:
Energy Systems LCA Approach
Total Marks: 60% of Final Grade (e.g., Report: 40%, Video Presentation: 20%)
Submission Deadline: [09/06/2025 - for Report]
Format: Project Report (PDF) + Video Presentation
1. Introduction & Context
Heavy industries like cement, steel, chemicals, and aluminium are fundamental to our economy but are also significant sources of CO2 emissions, largely due to their intensive energy use (often involving high temperatures) and specific process emissions. As the world moves towards decarbonisation targets, these sectors face immense pressure to innovate and adopt low-emission pathways.
Life Cycle Assessment (LCA) is a critical tool for evaluating the environmental impacts of products and processes, including potential decarbonization strategies. openLCA is a powerful, open-source software that allows us to model these systems and quantify their impacts.
Your Role: For this assignment, you will act as the Head of Sustainability for a representative company within a heavy industry sector of your choice among listed industry (page 6). Your task is to analyse the company's current energy-related emissions and propose a technically plausible low-emission or decarbonized alternative energy system, using openLCA to support your analysis and recommendations.
2. Project Objectives
Upon successful completion of this assignment, you will be able to:
• Analyse the primary energy inputs and related CO2 emissions profile of a typical heavy industrial process.
• Research and identify viable low-emission energy alternatives applicable to that industry.
• Utilise openLCA to model and compare the environmental impact (specifically
Global Warming Potential related to energy) of a baseline scenario vs. a proposed alternative scenario.
• Critically evaluate the feasibility, benefits, and limitations of the proposed alternative energy system.
• Develop clear, concise, and evidence-based recommendations for management.
• Communicate complex technical information effectively in both written (report) and oral/visual (video presentation) formats.
3. Task Description
You are required to undertake the following steps:
1. Select Your Sector: Choose one heavy industry sector among the listed industry in page 6.
2. Define the Baseline Scenario:
o Describe a typical, representative production process within your chosen
sector (e.g., Dry process cement kiln, Blast Furnace - Basic Oxygen Furnace steelmaking).
o Characterise its current energy system: Identify the main energy inputs
(types of fossil fuels used for heat, sources of electricity - assume a national or regional grid mix if specific data isn't available).
o Estimate typical energy consumption values (e.g., MJ or kWh per tonne of product) based on literature or reputable sources.
3. Research & Propose Alternative Scenario:
o Identify one or two promising low-emission or decarbonized energy alternatives relevant to the main energy needs of your baseline process. Examples could include:
Switching fossil fuels to sustainable biomass or renewable hydrogen for high-temperature heat.
Electrification of heat processes coupled with renewable electricity sources.
Implementing Carbon Capture and Storage/Utilization (CCS/CCU) specifically on the energy generation component (e.g., flue gas from combustion, not process emissions unless inseparable).
Using waste heat recovery systems more effectively.
o Clearly describe the proposed alternative energy system, including the technologies involved and changes to energy inputs.
4. Model in openLCA:
o Using openLCA and suitable database (NREL- Tracy 2.2), create simplified models for:
Baseline Scenario Energy System: Model the provision of the
required energy (heat from fuels, electricity from grid) per functional unit (e.g., per tonne of cement/steel produced).
Alternative Scenario Energy System: Model the provision of
the same amount of required energy using your proposed alternative (e.g., heat from biomass, electricity from wind/solar).
o Focus your LCA model strictly on the ENERGY INPUTS and their direct emissions/impacts.
5. Analyse & Compare:
o Perform the Life Cycle Impact Assessment (LCIA) in openLCA, focusing primarily on Global Warming Potential.
o Compare the GWP results (e.g., kg CO2-eq per tonne product) for the energy systems of the baseline vs. alternative scenarios.
o Quantify the potential CO2 reduction achieved by your proposed energy system change.
6. Develop Recommendations:
o Based on your LCA results and qualitative research, formulate
recommendations for the company's management (acting as the Sustainability Head).
o Discuss the potential benefits (environmental, potentially economic/social) of the alternative.
o Critically evaluate the feasibility (technical maturity, infrastructure needs, cost implications - qualitatively) and limitations/challenges of implementing your proposed solution. Acknowledge uncertainties and data gaps.
4. Scope and System Boundaries (IMPORTANT)
• Focus: This assignment focuses specifically on the energy systems supplying the main industrial process.
• System Boundary: Your LCA model should primarily cover the "cradle-to-gate"
impacts associated with energy provision for the defined functional unit (e.g., 1 tonne of product). This includes:
o Extraction, processing, and transport of fuels (using database processes).
o Combustion of fuels on-site for heat (direct emissions).
o Generation of purchased electricity (using grid mix processes).
o Operation of any new energy technologies in the alternative scenario (e.g., biomass processing, hydrogen production - using appropriate database processes).
• Exclusions (Unless directly part of your proposed energy change): Direct process emissions (e.g., calcination in cement), detailed modelling of capital equipment manufacturing, product use phase, end-of-life. You must clearly state your system boundaries and any major exclusions in your report.
• Data: Use representative data from literature, reputable reports, or the LCA databases accessible to you. Clearly document all key data sources and assumptions made.
Simplicity and transparency are key.
5. Deliverables
A. Project Report (Approx. 10-15 pages, excluding appendices) - 40%
• Executive Summary: (Max 1 page) Overview of the problem, approach, key findings, and main recommendations.
• Introduction: Context, chosen industry/process, project objectives, your role.
• Baseline Scenario Description: Process overview, detailed energy system (fuels, electricity, consumption values, sources).
• Proposed Alternative Scenario(s): Description of the low-emission energy technology/strategy, changes to energy inputs.
• LCA Methodology:
o Goal and Scope Definition (Functional Unit, System Boundaries clearly defined & justified, Exclusions).
o Life Cycle Inventory (LCI): Key data sources, major assumptions, brief description of openLCA model structure.
o Life Cycle Impact Assessment (LCIA): Impact categories selected (GWP mandatory), LCIA method used (as per database/class).
• Results & Analysis: Presentation of LCA results (charts/tables comparing GWP for energy systems of baseline vs. alternative), quantification of CO2 reduction potential.
• Discussion: Interpretation of results, comparison with literature (if possible), evaluation of feasibility (technical, economic considerations - qualitative), discussion of limitations, uncertainties, and challenges ofthe proposed alternative.
• Recommendations: Clear, actionable recommendations to management based on your findings.
• Conclusion: Summary of key insights.
• References: Properly formatted list of all sources cited.
• Appendices: (Not included in page count): Include supplementary materials within your report document like detailed process flow diagrams (screenshots from openLCA can be useful here), key LCI data tables, detailed calculations if necessary.
openLCA Project File Submission: Alongside your PDF report and video link, you must also submit your complete openLCA project file ( .zolca file). This allows for verification and review of your model structure and data. Ensure the file contains the baseline and alternative scenarios as described in your report.
B. Video Presentation (max 15 minutes) - 20%
Submission Deadline: [16/06/2025 - for Video]
• Format: Recorded video presentation. You are encouraged to use Zoom recording or something similar that can display picture in picture (i.e. showing your face) to demonstrate that you are both narrating the video and controlling the screen. Please submit only your video. There is no need to submit additional materials.
• Content: Present your project as if you were the Sustainability Head briefing company management.
o Briefly introduce the context and challenge.
o Explain the baseline energy system and its impact (GWP).
o Clearly present your proposed alternative energy system.
o Showcase the key LCA results comparing the scenarios (focus on GWP reduction)
o Summarise the benefits, feasibility, and challenges.
o Deliver your key recommendations clearly and persuasively.
6. Assessment Criteria
Your assignment will be evaluated based on:
• Report (40 marks):
o Clarity of Problem Definition, Scope, and Objectives (15%)
o Accuracy and Detail of Baseline & Alternative Scenario Descriptions (20%)
o Appropriate Application of LCA Methodology & openLCA (including clear documentation of assumptions, data, boundaries) (20%)
o Depth of Analysis, Interpretation of Results, and Critical Discussion (feasibility, limitations) (30%)
o Clarity, Structure, Professionalism, and Referencing of the Report (15%) o
• Video Presentation (20 marks):
o Accuracy and Clarity of Content Presented (Summarizing the core project effectively) (50%)
o Effectiveness of Communication (Engaging, logical flow, professional tone, suitable for management audience) (25%)
o Technical Quality (Audio-visual clarity, appropriate use of visuals) (25%)
2025-05-21