What is the absolute contribution of renewable energy sources to electricity…

Concept

To find a part represented by a percentage, convert the percentage to a fraction over 100 and multiply it by the total quantity.

When several categories form the required group, first add their percentages; only then convert the combined percentage into an absolute value.

Application

1. Renewable sources in the chart are hydro power at 20% and wind and solar energy at 7%.

2. Their combined share is 20% + 7% = 27%.

3. The absolute contribution is 27/100 × 97 GW = 26.19 GW.

Cross-check

1. Ten percent of 97 GW is 9.7 GW, so twenty percent is 19.4 GW and seven percent is 6.79 GW.

2. Adding 19.4 GW and 6.79 GW gives 26.19 GW, confirming the percentage calculation.

Therefore, the contribution of renewable energy sources is 26.19 GW.