Green Energy UPSC Questions

What is the typical output of a photovoltaic cell before inversion?

Which material is commonly used in luminescent solar concentrators?

With reference to technologies for solar power production, consider the following statements:
1. 'Photovoltaics' is a technology that generates electricity by direct conversion of light into electricity, while 'Solar Thermal' is a technology that utilizes the Sun's rays to generate heat which is further used in the electricity generation process.
2. Photovoltaics generates Alternating Current(AC), while Solar Thermal generates Direct Current(DC).
3. India has manufacturing base for Solar Thermal technology, but not for Photovoltaics.
Which of the statements given above is/are correct?
UPSC - 2014

Net metering 'is sometimes seen in the news in the context of promoting the
UPSC - 2016

What is a key benefit of LSCs over typical concentrating systems?

With reference to 'fuel cells' in which hydrogen-rich fuel and oxygen are used to generate electricity, consider the following statements:
1. If pure hydrogen is used as a fuel, the fuel cell emits heat and water as by-products.
2. Fuel cells can be used for powering buildings and not for small devices like laptop computers.
3. Fuel cells produce electricity in the form of Alternating Current(AC).
Which of the statements given above is/are correct?
UPSC - 2015