Module 9 — Fairness in Electricity Systems
Lesson 7 of 8
Intergenerational and Geographical Fairness
Learning objectives
By the end of this lesson you should be able to:
- Understand what is meant by intergenerational and geographical fairness.
- Recognise how electricity system decisions can affect different regions and future generations.
- Explain why balancing short-term and long-term interests is an important challenge.
- Appreciate that fairness may extend beyond today's consumers.
- Understand how these considerations influence electricity policy and infrastructure planning.
Introduction
Imagine that a country decides to build a major new electricity transmission network.
The investment will require billions of pounds today but may provide benefits for several decades.
Who should pay for it?
Should today's consumers bear the full cost?
Should future consumers contribute because they will also benefit?
Should regions that receive the greatest benefit contribute more than others?
These questions illustrate that fairness is not only about how resources are shared between people today.
It can also involve fairness across time and place.
Fairness across generations
Intergenerational fairness considers how the actions of one generation affect those that follow.
Many decisions made today will influence electricity systems for decades.
Examples include:
- constructing transmission networks,
- investing in power stations,
- deploying renewable generation,
- modernising distribution networks,
- developing energy storage,
- retiring ageing infrastructure.
Because these assets often operate for many decades, the costs and benefits may be experienced by different generations.
Long-lived infrastructure
Electricity infrastructure is typically built with long operational lifetimes.
A transmission line, substation or hydroelectric plant may remain in service for several decades.
This raises important questions.
Should infrastructure be financed primarily by today's consumers?
Or should costs be recovered gradually from future users who also benefit?
Many electricity systems spread infrastructure costs over time so that those who benefit contribute throughout the asset's lifetime.
Investment and future benefits
Infrastructure investment often requires balancing present costs against future benefits.
Investing today may:
- improve future reliability,
- reduce operating costs,
- support economic growth,
- enable new technologies,
- reduce future environmental impacts.
Delaying investment may reduce costs in the short term but increase costs or risks later.
Balancing these competing considerations is an important aspect of long-term electricity planning.
Geographical fairness
Electricity systems also raise questions about fairness between different locations.
Different regions may have:
- different electricity demand,
- different renewable resources,
- different network costs,
- different population densities,
- different industrial activity.
As a result, the costs and benefits of electricity infrastructure are not always distributed evenly.
Examples of geographical fairness
Questions of geographical fairness arise in many situations.
For example:
Should consumers in rural areas pay higher charges because networks are more expensive to build?
Should consumers living near renewable generation receive lower electricity prices?
Should the costs of national transmission infrastructure be shared equally across all consumers?
Different countries answer these questions in different ways.
There is no single universally accepted approach.
National and local perspectives
Some electricity decisions primarily affect local communities.
Others produce benefits that are shared nationally.
For example:
A local network upgrade may primarily benefit consumers within one town.
A major transmission project may improve the operation of the national electricity system.
Determining how costs should be shared between local beneficiaries and society as a whole is an important aspect of electricity regulation.
Fairness and the energy transition
The transition towards lower-carbon electricity systems creates additional questions about fairness.
Some regions may experience:
- new employment opportunities,
- increased infrastructure investment,
- changes in land use,
- higher construction activity.
Other regions may experience fewer immediate benefits or may face different economic challenges.
Ensuring that the transition is broadly beneficial across society is an important objective for many governments.
Balancing competing interests
Intergenerational and geographical fairness often involve balancing competing priorities.
Examples include:
- investing now versus reducing today's costs,
- local interests versus national benefits,
- supporting future resilience versus maintaining present affordability,
- allocating costs according to beneficiaries versus sharing costs more broadly.
Different policy choices reflect different priorities and different views about fairness.
Engineering and planning
Engineers play an important role in addressing these questions.
Long-term planning influences:
- where infrastructure is built,
- how networks develop,
- which technologies are adopted,
- how resilient electricity systems become.
While decisions about fairness are ultimately matters of public policy and regulation, engineering analysis provides the information needed to evaluate different options and their consequences.
Looking beyond the present
One important lesson from electricity system planning is that today's decisions can have lasting consequences.
Infrastructure investments, pricing arrangements and regulatory decisions may influence consumers for many years.
Considering both geographical and intergenerational fairness encourages decision-makers to think beyond immediate outcomes and consider how benefits and responsibilities are shared across society and over time.
A key insight
Fairness extends beyond the allocation of costs and benefits between today's consumers.
Electricity system decisions also affect people living in different regions and future generations.
Considering these wider impacts helps support long-term planning that balances affordability, reliability, sustainability and fairness.
Key takeaways
- Intergenerational fairness considers how today's decisions affect future generations.
- Geographical fairness considers how costs and benefits are shared between different locations.
- Electricity infrastructure often has long operational lifetimes, creating long-term consequences.
- Different regions may experience different costs and benefits from electricity investments.
- Infrastructure planning often requires balancing present costs against future benefits.
- There is no single universally accepted approach to achieving geographical or intergenerational fairness.
- These considerations play an important role in electricity policy, regulation and long-term planning.
Looking ahead
Throughout this module, we have explored several different ways of thinking about fairness, including equality, equity, cost causation, differentiated reliability, energy vulnerability and fairness across time and geography.
In the final lesson, we examine programmable fairness, exploring how these different principles can be translated into explicit rules and implemented within modern electricity systems and market designs.