Achieving a 100% Renewable Electricity System by 2050 is Economically Feasible

Why It Matters

This research provides a data-driven roadmap for designers and engineers to contribute to a sustainable energy future. It highlights that radical transformation does not necessitate disruptive societal changes, but rather a consistent, planned evolution of our energy infrastructure.

Key Finding

The research demonstrates that a complete shift to renewable electricity by 2050 is possible and affordable worldwide, provided there are consistent, planned advancements over the coming decades.

Key Findings

• A 100% renewable electricity system can be achieved globally by 2050.
• This transition is economically feasible across all regions.
• The transformation requires steady, evolutionary changes over approximately 35 years.
• Such a transition can mitigate greenhouse gas emissions and address climate change.

Research Evidence

Aim: What are the optimal pathways and required steps for a global transition to a 100% renewable electricity system by 2050 that is economically feasible and prevents societal disruption?

Method: Modelling and Simulation

Procedure: The study developed and utilized a global energy system model to simulate various scenarios for achieving a 100% renewable electricity supply by 2050, analyzing economic feasibility and transition pathways.

Context: Global energy systems and electricity generation

Design Principle

Design for a sustainable energy transition by prioritizing renewable resources and evolutionary integration.

How to Apply

When designing new energy systems or components, consider their integration into a future grid dominated by renewable sources. Evaluate the lifecycle impact and potential for renewable energy generation or storage.

Limitations

The model's assumptions regarding technological advancements, policy implementation, and global cooperation could influence outcomes. Specific regional challenges and resource availability were generalized.

Student Guide (IB Design Technology)

Simple Explanation: It's possible to power the whole world with renewable energy by 2050 without breaking the bank, as long as we make steady progress over the next 35 years.

Why This Matters: This research shows that designing for sustainability, especially in energy, is not just an environmental goal but also an economically sound strategy for the future.

Critical Thinking: How might unforeseen geopolitical events or rapid technological breakthroughs alter the projected 'evolutionary' pathway to a 100% renewable energy system?

IA-Ready Paragraph: This research by Bogdanov et al. (2019) highlights the economic feasibility of transitioning to a 100% renewable electricity system by 2050, suggesting that steady, evolutionary changes over 35 years can mitigate societal disruption and address climate change. This underscores the importance of designing products and systems that align with and contribute to this long-term sustainable energy future.

Project Tips

• When designing a product, think about how it will be powered. Can it use renewable energy?
• Consider the energy demands of your design and how they fit into a future sustainable grid.
• Research the availability and feasibility of renewable energy sources in the context of your design project.

How to Use in IA

• Reference this study when justifying the importance of renewable energy in your design project's context or when discussing the environmental impact of your design's energy consumption.

Examiner Tips

• Demonstrate an understanding of the long-term energy landscape and how your design contributes to a sustainable future.

Independent Variable: Timeframe for transition, investment in renewable technologies, policy support

Dependent Variable: Percentage of renewable electricity generation, economic cost of the energy system, greenhouse gas emissions

Controlled Variables: Global population growth, energy demand projections, existing energy infrastructure

Strengths

• Comprehensive global modelling approach.
• Focus on economic feasibility alongside environmental goals.

Critical Questions

• What are the specific technological innovations most critical for achieving this 2050 goal?
• How can societal acceptance and political will be fostered to ensure the 'evolutionary' steps are consistently implemented?

Extended Essay Application

• An Extended Essay could investigate the specific renewable energy technologies most suitable for a particular region and model their integration into the existing grid, referencing the feasibility outlined in this study.

Source

Radical transformation pathway towards sustainable electricity via evolutionary steps · Nature Communications · 2019 · 10.1038/s41467-019-08855-1