Which energy source is commonly used to meet baseline electric demand and is a fossil fuel?

Which energy source is commonly used to meet baseline electric demand and is a fossil fuel?

• A. Nuclear
• B. Solar
• C. Coal
• D. Wind

Answer: (C)

Baseline electric demand is the minimum level of electricity that must be available at all times. To meet this steady need, power plants that can run continuously with high reliability are used. Coal-fired plants are well suited for this role because they typically operate with high capacity factors, meaning they can produce a steady, controllable output around the clock. Coal is a fossil fuel, releasing energy by burning coal to generate steam that drives turbines, which makes it a dependable source for constant baseload power. Other options don’t fit as well for meeting baseload. Solar and wind are intermittent resources—their output varies with sun and wind, so they require backup or storage to maintain a constant supply. Nuclear can also provide baseload due to its reliability, but it is not a fossil fuel, which is the specific criterion of the question.

Baseline electric demand is the minimum level of electricity that must be available at all times. To meet this steady need, power plants that can run continuously with high reliability are used. Coal-fired plants are well suited for this role because they typically operate with high capacity factors, meaning they can produce a steady, controllable output around the clock. Coal is a fossil fuel, releasing energy by burning coal to generate steam that drives turbines, which makes it a dependable source for constant baseload power.

Other options don’t fit as well for meeting baseload. Solar and wind are intermittent resources—their output varies with sun and wind, so they require backup or storage to maintain a constant supply. Nuclear can also provide baseload due to its reliability, but it is not a fossil fuel, which is the specific criterion of the question.