| 1 |
Which scenario best demonstrates the importance of energy density in storage systems?
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5. An electric car charging faster than expected |
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The charging car is most demonstrates the important of density |
If the density of the electricity is high. It can cause the car to charge faster. |
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| 2 |
If a country lacks harmonized energy storage policy across regions, what consequence is most likely?
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3. Investment in large-scale EES will be discouraged |
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The investment will be discouraged. |
The lacks harmonized of the countries can cause the discourage of the investment because it lack of reliabity. |
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| 3 |
Which trade-off is most likely in choosing lithium-sulfur batteries over traditional lithium-ion batteries?
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3. Greater energy density but shorter lifespan |
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The lithium sulfur energy is better. |
It has grater energy than the original one but it has shorter lifespan. |
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| 4 |
What is a strategic benefit of combining long-duration and short-duration energy storage technologies in one grid system?
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3. It improves grid flexibility and response time |
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The combination of long and short duration or hybrid can improve the grid flexibility. |
HESS or Hybrid energy storage system optimizes cost and performance and improve the grid flexibility and response time. |
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| 5 |
What is a potential environmental risk of not recycling used storage batteries properly?
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2. Toxic leakage into soil and water |
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The toxic and chemical could be leak to the environment. |
If the storage is broken which some of it has chemical and toxic which can damage to the environment. |
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| 6 |
Which innovation would most effectively reduce intermittency from solar and wind sources?
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4. Mandating energy usage reductions |
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Reduce the usage of the energy. |
We can use the ESS to collect energy from both solar and wind power because it is non linear so we can use the energy that we storage when we don't have energy to use or lack of electricity. |
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| 7 |
In a coastal region with high solar potential but limited grid capacity, what solution aligns best with article insights?
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3. Installing distributed battery systems |
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We should expand and install distributed battery system. |
We should make more energy storage system there because we already have the source but we don't have the energy storage system so we need to build more and expand more to storage more energy. |
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| 8 |
Which group should take primary responsibility for initiating large-scale energy storage policies?
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3. Regional and international policymakers |
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The regional and international policymaker should take the primary responsibility. |
They are the one who make the policy , so they should also take the responsibility to initiate large scale energy. |
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| 9 |
Why is de-risking through subsidies critical for energy storage projects?
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4. It attracts long-term private investment |
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The subsidies can effect the investment. |
the money from subsidies effect the investment and attracts long term private investment to invest more. |
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| 10 |
Why is blue hydrogen considered a practical transition option despite its emissions?
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3. It combines fossil fuel with CCS to reduce emissions cost-effectively |
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Just like the answer: The blue hydrogen is the combination of fossil fuel and CCS. |
Its often being use because it can capture carbondioxide and also generate hydrogen but it still use fossil fuels. |
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| 11 |
Which future innovation could make hybrid hydrogen systems more sustainable?
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3. Integrating AI to optimize energy input sources |
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The integrating AI to optimized energy input sources can make the it sustainable. |
The AI optimized the energy input sources causing the hybrid hydrogen systems to be more sustainable. |
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| 12 |
What is the likely environmental impact if hydrogen production scales up without effective CCS?
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3. Significant rise in CO₂ emissions |
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If the hydrogen production is to much , the CCS couldn't handle it. |
The rising amount of hydrogen production causing the CCS need to get better to handle and collect most of the carbondioxide.
If its not that good , It can emits carbondioxide. |
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| 13 |
What infrastructure upgrade is most urgent to support hydrogen as a mainstream fuel?
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2. High-efficiency coal pipelines |
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The high efficiency coal pipeline need to be upgrade to burn the biomass and get hydrogen. |
The coal is very effective to the mainstream fuel because it can be use to burn the biomass and get hydrogen gases. |
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| 14 |
Which hydrogen type would be most suitable for a country with abundant solar but limited fossil fuels?
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3. Green hydrogen |
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The green hydrogen is most suitable for the country with abundant solar and limited fossil fuels. |
The green hydrogen is the best one here because it use only renewable energy and the electrolysis process which is very clean and use no fossil fuel. |
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| 15 |
Which public concern could most hinder hydrogen adoption?
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2. Concerns about safety and flammability |
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The concerns about safety and flammability because it is very dangerous. |
In public , the safety and flammability is very dangerous and can cause massive explosion because hydrogen is very flammable.
This could happen if we use the hydrogen production in wrong ways. |
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| 16 |
Which step in the hydrogen production process could benefit most from thermal integration to save energy?
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5. Electrolysis |
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The electrolysis because it can use the heat from thermal to generate electricity and use in electrolysis |
The electrolysis is very clean and has very high efficiency. |
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| 17 |
What makes hybrid hydrogen production more resilient than single-source systems?
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3. It can switch between renewable and non-renewable sources based on availability |
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The hybrid hydrogen is rely on both renewable and non renewable energy sources. |
The hybrid one could change or switch between renewable and non renewable which is based on availability. |
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| 18 |
Which policy action would most directly accelerate low-emission hydrogen deployment?
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3. Funding pilot projects with carbon pricing incentives |
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Give funding to support. |
Give the funding money would most accelerate low emission hydrogen deployment. It give money to improve the technology and system. |
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| 19 |
Based on the diagram, which of the following best explains why geothermal systems are strategically important in addressing both energy storage and carbon management challenges?
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3. They can support both thermal energy storage and CO₂ sequestration within subsurface formations. |
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The geothermal energy can help to support both thermal energy storage and co2. |
It can support thermal energy storage and carbondioxide sequesration. |
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| 20 |
Based on the chemical looping dry reforming process shown in the diagram, which of the following best explains a key advantage of using metal-oxide oxygen carriers (OCs) such as Ce₁₋ₓMₓO₂ in hydrogen production?
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5. They generate oxygen gas directly from methane under ambient conditions. |
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It generate the oxygen gas from the methane gas |
It generate oxygen gas directly from methane under the ambient of the condition. |
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