Question Details

A state electricity report serves as an important tool to assess energy production and track progress in the power sector. By providing quarterly data on generation measured in gigawatt hours (GWh), the report highlights the contribution of different energy sources such as coal, gas, hydro, solar, and wind. This not only helps in understanding the overall energy mix and dependence on conventional versus renewable sources but also enables policymakers, planners, and stakeholders to evaluate trends, address gaps, and promote sustainable energy development. A state electricity report provides quarterly generation (in GWh) by source – Coal, Gas, Hydro, Solar, and Wind.


In Q1 Generation from Coal is 2,200 GWh, Gas contributes 800 GWh, Hydro 900 GWh, Solar 700 GWh, and Wind 400 GWh, for a total of 5,000 GWh.


In Q2 Coal rises to 2,400 GWh, while Gas dips to 700 GWh; Hydro improves to 1,000 GWh, Solar to 800 GWh, and Wind to 600 GWh, bringing the quarterly total to 5,500 GWh.


In Q3 Coal moderates to 2,100 GWh, Gas increases to 900 GWh, Hydro softens to 800 GWh, but Solar advances to 1,000 GWh and Wind to 700 GWh, keeping the total at 5,500 GWh.


In Q4 Coal moves to 2,300 GWh, Gas to 850 GWh, Hydro to 1,100 GWh, Solar to 900 GWh, and Wind to 850 GWh, for a total of 6,000 GWh.


For analysis, Renewables are taken as Hydro + Solar + Wind. A carbon policy scenario proposes cutting Q4 Coal by 10%, shifting the entire reduction equally into Solar and Wind. (255 words)


A carbon policy reduces Q4 Coal by 10% and shifts the entire reduction equally to Solar and Wind. The new Q4 Solar (GWh) is:

Options

A

975

B

1,000

C

1,015

D

1,030

Show Answer

Correct Answer :

Option C

1,015

Solution :

The correct option is 1,015.


Let's calculate the new Q4 Solar generation step-by-step based on the given information:


Step 1: Identify initial Q4 generation values from the data:

- Initial Q4 Coal generation = 2,300 GWh

- Initial Q4 Solar generation = 900 GWh


Step 2: Calculate the reduction in Q4 Coal generation:

Coal generation is reduced by 10%.

Reduction in Coal=10%×2,300=0.10×2,300=230 GWh


Step 3: Determine the amount shifted equally into Solar and Wind:

The entire reduction of 230 GWh is split equally between Solar and Wind.

Increase added to Solar=2302=115 GWh


Step 4: Calculate the new Q4 Solar generation:

New Q4 Solar=Initial Q4 Solar+Increase

New Q4 Solar=900+115=1,015 GWh


Thus, the new Q4 Solar generation is 1,015 GWh.

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