Video Experimental Relacionado
Updated: Jul 19, 2025

07:41
Author Spotlight: Developing Cost-Effective and Customizable Balloon Tags for Fish Passage Studies
Published on: October 13, 2023
1.7K
La disminución del costo de las energías renovables y el cambio climático frenan la necesidad de expansión de la
Angelo Carlino1,2, Matthias Wildemeersch2, Celray James Chawanda3
1Department of Electronics, Information, and Bioengineering, Politecnico di Milano, Milano, Italy.
Resumen
África del sur
Área de la Ciencia:
- Análisis de los sistemas energéticos
- Impactos del cambio climático
- Economía de las energías renovables
Sus antecedentes:
- Se planean más de 300 proyectos hidroeléctricos en África para satisfacer la creciente demanda de energía.
- Los cambios hidroclimáticos y socioeconómicos introducen incertidumbres significativas en la planificación de la energía hidroeléctrica.
Objetivo del estudio:
- Evaluar la viabilidad económica de la capacidad hidroeléctrica propuesta en África.
- Analizar el futuro de los sistemas energéticos africanos bajo varios escenarios.
- Determinar la competitividad de la energía eólica y solar frente a la hidroeléctrica.
Principales métodos:
- Análisis de escenarios de los sistemas energéticos africanos (2020-2050).
- Evaluación de la demanda de energía, el cambio en el uso de la tierra y los impactos climáticos en la disponibilidad de agua.
- Evaluación del atractivo económico de los proyectos hidroeléctricos.
Principales resultados:
- Sólo el 40-68% de la capacidad hidroeléctrica candidata es económicamente atractiva.
- Se prevé que la energía eólica y solar superen a la hidroeléctrica para 2030.
- Se necesita una inversión anual adicional del 1,8 al 4% para garantizar la fiabilidad frente a la variabilidad hidroclimática.
Conclusiones:
- El atractivo económico de la energía hidroeléctrica es limitado, con el viento y la energía solar emergiendo como fuentes de energía dominantes.
- El aumento de la inversión y la cooperación internacional son cruciales para la fiabilidad del sistema energético y para hacer frente a los déficits.
Más Videos Relacionados
Videos de Conceptos Relacionados
What is Climate?
18.6K
Climate refers to the prevailing weather conditions in a specific area over an extended period. As the saying goes, “Climate is what you expect. Weather is what you get.” Climate is influenced by geographic factors, such as latitude, terrain, and proximity to bodies of water.
18.6K
Global Climate Change
24.5K
Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
24.5K
Responses to Drought and Flooding
10.7K
Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
10.7K
Sustainable Development
13.3K
As the human population continues to grow and use resources, we must be mindful of our planet’s natural limits. Sustainable development provides a pathway to maintain and improve human life now while also ensuring that future generations will have the resources that they need. The long-term success of sustainability efforts rests on understanding the interplay between human actions and ecological systems.
13.3K
Design Example: Analyzing Capacity Contours for Flood Risk Assessment
71
Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...
71
Threats to Biodiversity
22.4K
There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...
22.4K

