Solar PV costs plummet by 88%, offering a resilient renewable energy solution against climate change.
Category: Resource Management · Effect: Strong effect · Year: 2022
The significant cost reduction in solar photovoltaic technology, coupled with its relative resilience to climate change impacts compared to other renewables, positions it as a highly viable and strategic resource for decarbonization efforts.
Design Takeaway
Incorporate solar photovoltaic technology into design projects due to its declining costs and robust performance under changing climatic conditions, while being mindful of the environmental impact of hydropower and the benefits of wind and biomass.
Why It Matters
As designers and engineers, understanding the economic viability and environmental robustness of energy sources is crucial for developing sustainable products and systems. This insight highlights a key trend that can inform material choices, product lifecycles, and the integration of energy generation into design solutions.
Key Finding
Solar energy has become significantly cheaper and is less vulnerable to climate change effects than wind or hydropower, making it a strong candidate for future energy systems. While hydropower has the largest environmental footprint, wind and biomass are relatively benign.
Key Findings
- The price of solar photovoltaic energy has decreased from $0.417/kWh in 2010 to $0.048/kWh in 2021.
- Wind energy and hydropower production may decrease by up to 40% in some regions due to climate change, while solar energy is least impacted.
- Hydroelectric power plants have the most significant negative environmental impact, while wind turbines and biomass power plants have minimal impact.
- Renewable energy sources have the potential to decarbonize 90% of the electricity industry by 2050.
Research Evidence
Aim: To assess the cost, environmental impact, and climate resilience of various renewable energy sources to inform decarbonization strategies.
Method: Literature Review
Procedure: The researchers conducted a comprehensive review of existing literature focusing on solar, wind, biomass, hydropower, and geothermal energy. They analyzed data related to cost trends, the impact of climate change on energy production, and the environmental footprint of each technology.
Context: Global energy sector and climate change mitigation
Design Principle
Resource selection should balance economic feasibility, environmental impact, and long-term operational resilience.
How to Apply
When designing products or systems that require significant energy, investigate the feasibility of integrating on-site solar power generation or specifying components powered by solar energy. Consider the long-term environmental and economic implications of energy sourcing.
Limitations
The review relies on existing data, which may have varying methodologies and regional specificities. Future climate impacts are projections and subject to uncertainty.
Student Guide (IB Design Technology)
Simple Explanation: Solar power is getting much cheaper and is less affected by things like extreme weather compared to other renewable energy sources like wind or water power. This makes it a really good choice for powering things in the future.
Why This Matters: Understanding the economics and environmental resilience of energy sources is key to designing sustainable and practical solutions that can function effectively in a changing world.
Critical Thinking: While solar energy is presented as resilient, what are the specific environmental impacts associated with the manufacturing and disposal of solar panels, and how do these compare to other renewable sources?
IA-Ready Paragraph: The selection of energy sources for this design project was informed by research indicating a significant decline in solar photovoltaic costs, which fell from $0.417/kWh in 2010 to $0.048/kWh in 2021. Furthermore, solar energy exhibits greater resilience to projected climate change impacts compared to wind and hydropower. This makes solar a strategically advantageous and economically viable option for powering the proposed design, aligning with principles of sustainability and long-term operational viability.
Project Tips
- When choosing energy sources for your design project, research current cost trends and projected climate impacts.
- Consider how your design's energy needs might be met by solar power, especially if it's a stationary product or system.
How to Use in IA
- Cite this review when discussing the selection of energy sources for your design, highlighting the cost-effectiveness and climate resilience of solar power.
Examiner Tips
- Demonstrate an understanding of the economic and environmental trade-offs between different renewable energy sources when justifying design choices.
Independent Variable: ["Type of renewable energy source (solar, wind, biomass, hydropower, geothermal)","Time period (e.g., 2010 vs. 2021 for cost)"]
Dependent Variable: ["Cost per kilowatt-hour","Percentage decrease in production due to climate change","Environmental impact score","Greenhouse gas emissions"]
Controlled Variables: ["Geographic region","Specific climate change scenarios","Technological advancements within each energy type"]
Strengths
- Comprehensive review of multiple renewable energy sources.
- Focus on key practical considerations: cost, environmental impact, and climate resilience.
Critical Questions
- How do regional variations in climate and resources affect the comparative advantage of different renewable energy sources?
- What are the energy storage implications for intermittent renewable sources like solar and wind, and how does this affect their overall viability?
Extended Essay Application
- An Extended Essay could investigate the feasibility of a specific renewable energy system for a particular community, analyzing cost-benefit, environmental impact, and resilience to local climate projections.
Source
Cost, environmental impact, and resilience of renewable energy under a changing climate: a review · Environmental Chemistry Letters · 2022 · 10.1007/s10311-022-01532-8