Tech Advances and Cost Reductions in Renewables: Learn the Latest

Question 1

Which of the following technological advancements has notably reduced the cost of solar energy in recent years?

Accepted Answer

Thin-film solar panels

Answer

Concentrated solar thermal power

Answer

Crystalline silicon photovoltaic panels

Answer

Perovskite solar panels

Question 2

Which energy storage technology is most suitable for grid-scale applications with extended storage durations?

Accepted Answer

Pumped-hydro storage

Answer

Lithium-ion batteries

Answer

Flow batteries

Answer

Flywheels

Question 3

Which of the following is NOT a key challenge associated with integrating renewable energy into the power grid?

Accepted Answer

Thermal efficiency of power plants

Answer

Intermittency of renewable energy sources

Answer

Voltage fluctuations

Answer

Transmission and distribution losses

Question 4

Which technological advancement has primarily contributed to the significant cost reduction in energy storage systems?

Accepted Answer

Lithium-ion batteries

Answer

Flow batteries

Answer

Pumped hydro storage systems

Answer

Flywheels

Question 5

Which technological advancement has driven down the costs of solar photovoltaic (PV) systems?

Accepted Answer

Thin-film PV cells

Answer

Concentrated PV systems

Answer

Polycrystalline silicon cells

Answer

Perovskite PV cells

Question 6

Which technology has significantly reduced the cost of energy storage systems?

Accepted Answer

Lithium-ion batteries

Answer

Flow batteries

Answer

Pumped-storage hydroelectricity

Answer

Flywheels

Question 7

Which aspect of wind turbine design has been key to cost reductions?

Accepted Answer

Larger rotor diameters

Answer

Increased blade count

Answer

Variable pitch blades

Answer

Direct drive systems

Question 8

How has the adoption of modular construction techniques impacted the cost of solar farms?

Accepted Answer

Reduced installation time and costs

Answer

Increased system reliability

Answer

Enhanced environmental sustainability

Answer

Improved panel efficiency

Question 9

Which of these technologies has emerged as a cost-effective alternative to conventional silicon-based solar panels?

Accepted Answer

Perovskite solar cells

Answer

Concentrated solar power (CSP)

Answer

Vertical axis wind turbines (VAWTs)

Answer

Lithium-ion batteries

Question 10

How have advancements in battery technology impacted the economics of renewable energy storage?

Accepted Answer

Reduced the cost per kilowatt-hour of stored energy

Answer

Increased the lifespan and durability of batteries

Answer

Reduced the physical size and weight of batteries

Answer

Improved battery safety and reliability

Question 11

Which of the following is NOT a potential benefit resulting from cost reductions in renewable energy?

Accepted Answer

Increased reliance on fossil fuels

Answer

Enhanced energy security and resilience

Answer

Reduced greenhouse gas emissions

Answer

Lower electricity prices for consumers

Question 12

How have cost reductions influenced the global adoption rate of renewable energy technologies?

Accepted Answer

Accelerated the transition towards sustainable energy systems

Answer

Increased public resistance to renewable energy projects

Answer

Slowed down the rate of fossil fuel consumption growth

Answer

Led to a significant decline in energy poverty

Question 13

What is the primary objective of cost reductions in renewable energy?

Accepted Answer

To make sustainable energy more accessible and affordable

Answer

To promote the development of new and innovative renewable energy technologies

Answer

To reduce the cost of electricity for all consumers, regardless of income

Answer

To completely eliminate the use of fossil fuels

Question 14

Which energy storage technology has emerged as a key facilitator for integrating intermittent renewable energy sources into the grid?

Accepted Answer

Lithium-ion batteries

Answer

Pumped hydro storage

Answer

Flywheels

Answer

Flow batteries

Question 15

How has the digitalization of the energy grid contributed to cost savings in renewable energy distribution?

Accepted Answer

Smart meters, real-time monitoring, and automated decision-making systems

Answer

Increased transmission capacity and voltage levels

Answer

Substation upgrades and grid reinforcement

Question 16

Which technology has led to the reduction of transmission losses in long-distance renewable energy distribution?

Accepted Answer

High-voltage direct current (HVDC) transmission

Answer

Superconducting cables

Answer

Energy storage systems

Answer

Advanced metering infrastructure

Question 17

How has technological innovation impacted the job market within the renewable energy sector?

Accepted Answer

Creation of new skilled positions and opportunities for upskilling

Answer

Increased outsourcing and offshoring of jobs

Answer

Reduced employment due to automation and AI