Global energy demand can be reduced by 55% by 2050 through efficiency improvements.

Why It Matters

Designers and engineers have a critical role in developing products and systems that minimize energy waste. Understanding the scale of potential efficiency gains informs strategic design decisions and prioritizes solutions with the greatest environmental and economic impact.

Key Finding

By improving how we use energy in homes, transport, and industry, and by making power generation and distribution more efficient, global energy demand could be significantly lower than currently projected.

Key Findings

• Demand-side energy efficiency improvements could limit final energy demand growth to 8% by 2050, a 44% reduction compared to the reference scenario.
• Improving energy efficiency in the transformation sector could reduce primary energy supply losses from 33% to 19% by 2050.
• Combined demand and supply-side efficiencies could lead to a 55% reduction in total primary energy supply by 2050 compared to the reference scenario.

Research Evidence

Aim: What is the technical potential for global energy efficiency improvements by 2050 from both demand and supply perspectives?

Method: Scenario modelling and analysis

Procedure: The study modelled a reference scenario for global energy demand and supply up to 2050 based on existing data and economic projections. It then quantified the potential energy savings achievable by implementing technical efficiency improvements in energy-consuming sectors and in energy transformation and distribution processes.

Context: Global energy systems and policy

Design Principle

Maximize energy efficiency in all design solutions.

How to Apply

When designing any product or system, quantify its projected energy consumption and explore design iterations that demonstrably reduce this consumption.

Limitations

The study relies on technical potentials and does not account for economic feasibility, market adoption rates, or policy implementation challenges.

Student Guide (IB Design Technology)

Simple Explanation: We can use much less energy globally by making our appliances, cars, and buildings more efficient, and by improving how we generate and deliver electricity.

Why This Matters: Understanding energy efficiency potential helps you make informed design choices that have a real impact on resource conservation and environmental sustainability.

Critical Thinking: To what extent do economic factors and consumer behaviour influence the realization of these technical energy efficiency potentials?

IA-Ready Paragraph: This research highlights that significant global energy savings are technically achievable through efficiency improvements. For instance, by 2050, demand-side efficiencies could reduce final energy demand by 44%, and combined with supply-side improvements, total primary energy supply could be cut by 55% compared to projected trends. This underscores the critical role of design in developing energy-efficient solutions.

Project Tips

• When designing a product, research the energy consumption of existing solutions and aim to significantly outperform them.
• Consider the energy efficiency of the manufacturing process for your design as well as the product's operational energy use.

How to Use in IA

• Use the findings to justify the importance of energy efficiency in your design project's context and to set ambitious targets for your design's performance.

Examiner Tips

• Demonstrate a clear understanding of the energy efficiency targets and how your design contributes to achieving them.

Independent Variable: ["Implementation of energy efficiency measures (demand-side and supply-side)"]

Dependent Variable: ["Final energy demand","Primary energy supply","Energy losses in transformation and distribution"]

Controlled Variables: ["GDP development projections","Reference energy system assumptions"]

Strengths

• Provides a comprehensive global outlook on energy efficiency.
• Differentiates between demand-side and supply-side potentials.

Critical Questions

• What are the primary barriers to achieving these technical efficiency potentials on a global scale?
• How can design innovation accelerate the adoption of these efficiency measures?

Extended Essay Application

• Investigate the energy efficiency potential of a specific technology or product category within your design project and quantify potential savings.

Source

Global energy efficiency improvement in the long term: a demand- and supply-side perspective · Energy Efficiency · 2010 · 10.1007/s12053-010-9097-z