Energy Consumption and Renewable Solutions

The video discusses the global reliance on fossil fuels and the challenges of transitioning to renewable energy sources. It highlights the potential of solar, wind, and other renewables, but also the technological and logistical hurdles in achieving 100% renewable energy. The video explores the need for efficient energy storage and transportation, particularly in replacing liquid fuels with alternatives like advanced batteries. It concludes with optimism about ongoing scientific advancements and investments in renewable technologies.

What percentage of the world's oil have we consumed according to scientists?

• 20%

• 40%

• 60%

• 80%

What percentage of our energy needs is currently provided by renewable sources?

• 25%

• 13%

• 5%

• 50%

How much solar energy does the sun radiate at the Earth continuously?

• 73 quadrillion watts

• 373 quadrillion watts

• 173 quadrillion watts

• 273 quadrillion watts

What is a major challenge in building a global electrical energy network?

• Political barriers

• Insufficient technology

• High cost

• Lack of sunlight

What percentage of energy is lost in present-day power lines due to resistance?

• 8-10%

• 6-8%

• 4-6%

• 2-4%

What is a potential solution to reduce energy loss in power lines?

• Thicker wires

• Superconductors

• Shorter distances

• Higher voltage

What is the energy density of the best lithium-ion batteries compared to gasoline?

• 5 times less

• 10 times less

• 20 times less

• 15 times less

What is a significant challenge for using batteries in large vessels like ships and planes?

• Durability

• Availability

• Weight

• Cost

What is a promising solution for storing renewable energy in a transportable form?

• Geothermal energy

• Hydroelectric power

• Wind energy

• Solar to chemical energy conversion

What is necessary to achieve breakthroughs in renewable energy storage?

• Public awareness

• Government policies

• Creativity and innovation

• More funding