Module 12 — Designing the Energy System of the Future
Lesson 9 of 9
Final Design Exercise
Learning objectives
By the end of this lesson you should be able to:
- Apply concepts from across the course to the design of an electricity system.
- Justify engineering, economic and governance decisions using evidence and systems thinking.
- Evaluate trade-offs between competing objectives.
- Integrate technical, economic and institutional perspectives into a coherent design.
- Communicate and defend a complex systems design.
Introduction
Throughout this course you have explored the many components that make up modern electricity systems.
You have studied:
- engineering,
- electricity networks,
- generation technologies,
- electricity markets,
- economics,
- regulation,
- governance,
- infrastructure,
- digital technologies,
- consumer participation.
The purpose of this final exercise is to bring these ideas together.
Rather than analysing an existing electricity system, you will design one.
There is no single correct solution.
Instead, the quality of your design will be judged by how well your decisions align with your stated objectives and how effectively you justify the trade-offs you make.
The challenge
Imagine you have been appointed as the lead designer for the electricity system of a fictional country.
The country is expected to experience:
- growing electricity demand,
- increasing electrification,
- expanding renewable generation,
- greater digitalisation,
- changing consumer expectations.
Your task is to propose an electricity system capable of supporting these developments over the coming decades.
Step 1 – Define your objectives
Begin by identifying the primary objectives of your electricity system.
Examples might include:
- reliability,
- affordability,
- sustainability,
- resilience,
- economic competitiveness,
- energy security,
- fairness,
- innovation.
Explain why these objectives are important and how they influence the rest of your design.
Step 2 – Design the engineering system
Describe the physical characteristics of your electricity system.
Consider:
- generation technologies,
- transmission infrastructure,
- distribution networks,
- storage technologies,
- distributed energy resources,
- interconnection.
Explain how your engineering choices support your stated objectives.
Step 3 – Design the market
Describe how electricity will be coordinated.
For example, consider:
- wholesale markets,
- retail markets,
- capacity mechanisms,
- ancillary services,
- pricing,
- investment incentives.
Explain how your proposed market encourages efficient operation while supporting long-term investment.
Step 4 – Design the institutions
Identify the organisations responsible for operating your electricity system.
Consider the roles of:
- government,
- regulators,
- system operators,
- network companies,
- private organisations,
- consumers.
Explain how responsibilities are allocated and how these organisations remain accountable.
Step 5 – Digital infrastructure
Describe the digital capabilities supporting your electricity system.
Examples include:
- communications,
- data platforms,
- automation,
- interoperability,
- cybersecurity,
- monitoring systems.
Explain how digital technologies improve coordination and system performance.
Step 6 – Consumers
Describe the role of consumers within your electricity system.
Will consumers remain largely passive?
Will they actively participate?
How will automation support their participation?
How will your design remain accessible to people with different needs and levels of technical knowledge?
Step 7 – Future adaptability
No electricity system remains unchanged.
Describe how your proposed system can adapt to:
- technological change,
- population growth,
- new energy resources,
- changing consumer behaviour,
- future policy priorities.
Explain how your design supports continuous improvement rather than assuming today's solutions will remain optimal indefinitely.
Presenting your proposal
Prepare a structured report explaining your proposed electricity system.
Your report should include:
- Objectives
- Engineering design
- Market design
- Institutional design
- Digital infrastructure
- Consumer participation
- Future adaptability
- Conclusions
Support your decisions using concepts developed throughout the course.
Evaluating designs
When evaluating electricity system designs, there is rarely a perfect solution.
Instead, good designs demonstrate:
- internal consistency,
- clear objectives,
- evidence-based reasoning,
- awareness of trade-offs,
- realistic implementation,
- systems thinking.
Strong designs recognise that improving one objective may require compromises elsewhere.
Reflection
After completing your design, consider the following questions:
- Which design decisions were the most difficult?
- Which trade-offs proved hardest to balance?
- How did engineering influence institutional design?
- How did market design influence investment?
- How did consumer behaviour influence system operation?
- What assumptions were most uncertain?
- If you repeated the exercise in ten years, what might change?
A systems perspective
Throughout this course you have seen that electricity systems combine:
- engineering,
- economics,
- governance,
- institutions,
- technology,
- society.
The final exercise demonstrates that these components cannot be designed independently.
Every decision influences many others.
Successful electricity systems emerge when these different perspectives are integrated into a coherent whole.
A key insight
There is no universally "correct" electricity system.
Every design reflects a set of objectives, assumptions and trade-offs.
The role of engineers, economists and policymakers is not to eliminate these trade-offs but to understand them, justify them and design systems that best meet the needs of society.
Key takeaways
- Electricity system design requires integrating engineering, economics and governance.
- Clear objectives help guide design decisions.
- Different design choices involve different trade-offs.
- Digital technologies and institutions are as important as physical infrastructure.
- Successful designs are internally consistent and evidence based.
- Systems thinking is essential for understanding complex infrastructure.
Congratulations!
You have now completed the course.
You have explored electricity systems from first principles through to future system design, examining engineering, markets, economics, regulation, governance and public policy.
The electricity systems of tomorrow will undoubtedly differ from those of today. New technologies will emerge, institutions will evolve and society's priorities will continue to change.
The knowledge developed throughout this course provides a framework for understanding these changes, evaluating new ideas and contributing thoughtfully to one of the most important engineering challenges of the twenty-first century.
Whether you go on to become an engineer, economist, policymaker, researcher or informed citizen, the principles explored in this course will help you understand how electricity systems shape modern society—and how society, in turn, shapes the future of electricity.
That's the final lesson in Energy, Society & Market Design in the Digital Era.