Balancing your power

The difference between baseload and intermittent power and how it impacts your reliability

The relief of coming home to a comfortable house is something we all crave. We crank up the air conditioner or heater while thousands of others do the same, causing a surge in electricity demand as the workday ends. Managing this demand is a complex task for those overseeing the power grid.

Electricity needs fluctuate throughout the day. While demand is low at night, it spikes in the morning as people wake up, shower and start their day. The grid must balance power from various sources: fossil fuels like coal, natural gas and oil; nuclear plants; and renewable sources such as wind, solar and hydroelectric power. These sources are categorized into baseload, peaking or intermediate power.

Baseload power, which includes nuclear and fossil-fuel plants, provides a constant supply of electricity, ensuring reliability. However, these plants cannot adjust quickly to sudden changes in demand. For more flexible power, grid operators use intermediate and peaking plants. Intermediate plants handle gradual changes, while peaking plants respond to sudden spikes.

Renewable sources like solar and wind are increasingly part of the energy mix. However, they offer intermittent power due to their reliance on weather conditions. Solar panels need sunlight, and wind turbines require wind speeds of at least 13 mph. Because these sources can’t consistently provide baseload power, traditional plants are still needed for reliable electricity.

Electric co-op members might wonder why renewable sources haven’t fully replaced fossil fuels. The answer lies in reliability. Completely switching to intermittent sources would risk failing to meet demand. A promising solution is energy storage technologies, such as advanced batteries that can store excess power from wind and solar. However, this technology is still developing and has environmental impacts from mining materials like lithium.

Electric co-ops strive to increase the use of environmentally-friendly sources while maintaining a reliable power supply. Members can contribute by reducing their energy consumption. Upgrading to energy-efficient lighting and appliances cuts both energy use and electric bills.

For tips on reducing your energy use without compromising comfort, contact your local electric co-op. Using less power means lower demand and a more sustainable energy future for everyone.