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Related Concept Videos

Sustainable Development01:43

Sustainable Development

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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.
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Electrical Power01:07

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Electric power is the product of current and voltage, represented in units of joules per second, or watts. For example, cars often have one or more auxiliary power outlets with which you can charge a cell phone or other electronic devices. These outlets may be rated at 20 amps and 12 volts, so that the circuit can deliver a maximum power of 240 watts. Consider a 25 Watt bulb and a 60 Watt bulb. The conversion of electrical energy produces heat and light, while the kinetic energy lost by the...
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Power and Energy01:12

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The power and energy delivered to an element are subjects of great significance in the field of electrical engineering. It is a well-known fact that a 100-watt light bulb emits more light than a 60-watt one. Therefore, power and energy calculations play a crucial role in the analysis of electrical circuits.
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Electrical Energy01:10

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Using electric appliances for a longer period of time consumes more electrical energy and results in a higher electric bill. The energy produced by the transfer of electrons from one point to another is known as electrical energy. If power is delivered at a constant rate, the electrical energy can be defined as the product of power used by the device for a period of time. The energy unit on electric bills is the kilowatt-hour, where one kilowatt-hour is equivalent to 3.6 × 106 joules.
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Global Climate Change01:50

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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.
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Energy to Drive Translocation01:37

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Mitochondrial protein import is powered by two distinct energy sources: ATP hydrolysis and electrochemical potential across the inner membrane. Newly synthesized precursors are bound by cytosolic chaperones of the Hsp70 family, which guide them to the import receptors on the mitochondrial surface. Utilizing the energy of ATP hydrolysis, Hsp70 chaperones transfer these precursors to the TOM receptors on the mitochondrial outer membrane.
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High-resolution global pathways to achieve 100% electricity access in 2030.

Victhalia Zapata1, Anteneh G Dagnachew2, Oreane Y Edelenbosch3

  • 1Copernicus Institute of Sustainable Development, Utrecht University, Utrecht, The Netherlands. v.h.zapatacastillo@uu.nl.

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|November 17, 2025
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Summary
This summary is machine-generated.

Achieving universal electricity access by 2030 requires exploring new strategies. Off-grid solutions like mini-grids and solar home systems are the most cost-effective for reaching underserved populations, especially in Sub-Saharan Africa.

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Area of Science:

  • Energy Policy
  • Sustainable Development
  • Climate Change Mitigation

Background:

  • Universal electricity access is a key Sustainable Development Goal, but current policies are insufficient to meet the 2030 target.
  • Understanding regional electrification strategies and costs is limited, hindering progress.
  • Existing models lack detailed analysis of diverse electrification pathways.

Purpose of the Study:

  • To explore global scenarios for achieving universal electricity access by 2030.
  • To identify least-cost electrification strategies and their associated capacity requirements.
  • To assess the impact of integrating climate change mitigation goals into electrification planning.

Main Methods:

  • Utilized high-resolution data and energy projections from the IMAGE integrated assessment model.
  • Developed scenarios considering baseline development, decent living standards, and climate synergies.
  • Analyzed the cost-effectiveness of various electrification strategies, including off-grid solutions.

Main Results:

  • Off-grid systems (mini-grids, solar home systems) are the most economical approach for new connections post-2023.
  • Universal access necessitates at least 70GW of additional off-grid capacity, primarily for Sub-Saharan Africa.
  • Integrating climate goals enhances renewable energy use, cuts CO2 emissions by ~30%, with similar system costs.

Conclusions:

  • Current policies will not achieve universal electricity access by 2030.
  • Off-grid solutions are crucial for cost-effective electrification, particularly in developing regions.
  • Combining electrification with climate mitigation offers environmental benefits without significantly increasing costs.