Chattanooga Electrical Engineering News Blog
Topics Related to Electronics and Electrical Engineering
Knoxville News Sentinel – Daniel Dassow (Oakridger.com)
“Oak Ridge has emerged as a critical hub for newer technology like the Hermes Low-Power Demonstration reactor.” These efforts hope to achieve “affordable nuclear heat, but it will not produce electricity.”
This new “$100 million investment created 55 new high-paying jobs” in the area where construction began in July 2024.
With the rising temperatures across most of the US and many cities experiencing over 100 degrees Fahrenheit, stresses the overall electric power grid. Power utilities are experiencing summer peaks in larger electric load demand by keeping up with consumers’ air conditioning units running around the clock.
The Tennessee Valley Authority (TVA), one of the nation’s largest utilities, provides electricity across a 7-state region (80,000 square miles) in the Southeast for over 10 million users. TVA has a total generation capacity of 32 gigawatts (GW) with the option to purchase and wheel additional GWs to customers from neighboring utilities. In the past, TVA has experienced winter peak load demands that created system disturbances that resulted in temporary and very short rolling blackouts in some cities/areas to maintain power grid reliability. Temporary load shedding outages were necessary for balancing the system generation capacity with the excessive peak load demand by ultimately protecting the integrity of its entire electric network. Continue Reading…
Moving forward, TVA has spent millions in power grid improvements and efficiency upgrades to support increases in future peak load demand. TVA’s integrated resource plan (IRP) will focus on continued grid improvements with plans to add up to 10 GWs of solar renewable power generation by 2035. Continue Reading…
The North American Electric Reliability Corporation (NERC) released its “2024 Summer Reliability Assessment, “ May 2024, detailing and “identifying areas of concern” for the nations North American power grid during extreme summer conditions. NERC named power regions/entities that may experience power generation capacity shortages during summer peak load demands. Continue Reading…
By UtilityDive.com – Will the power utility, XCEL Energy, have enough power generation capacity by 2030 in time to abolish all of its coal-fired generating plants? Energy regulators are very doubtful that XCEL Energy can achieve this vigorous goal in replenishing enough clean power to offset their reduction in carbon emissions. The fear is: will XCEL approach a power generation shortfall over the next decade to its electric load demand?
“The South Dakota Public Utilities Commission on Jan. 4 asked Xcel Energy to reconsider shuttering its Sherco and King coal-fired power plants, writing that their premature closure adds to the uncertainty of electric generation resource adequacy in the upper Midwest.”
By PowerMag.com – On Wednesday, January 17, 2024, the Tennessee Valley Authority (TVA), one of the nation’s largest power generation and transmission utilities in the southeast, reached an all-time record-breaking winter “peak power demand of 34,526 MW,” while the average temperature across the Tennessee valley region (7 state territory) was at “4 degrees F.”
TVA’s previous peak power demand record was set in August 2007 reaching a summer peak power “demand of 33,482 MW.” TVA also set another previous “winter peak power demand record at the end of 2023 (December 23, 2022) during the Winter Storm Elliott with a demand of 33,400 MW,” which spiraled into power generation shortages resulting in a series of rolling blackouts across the region.
With the higher peak power demand forecasted in early 2024, “TVA urged its 10 million customers to be aware of their power consumption” and to cut back on energy usage during the early morning hours. At this time, all of TVA’s generating units were operating adequately while maintaining a stable electric power grid. “TVA had invested $123 million over the past few months” in better preparation for this winter compared to the winter just a year ago.
With the increases in power generation retirements in both coal powered and nuclear energy plants, presents major reliability concerns to the electric infrastructure. There is over “83 GW of fossil fuel and nuclear generation” in planned retirements over the next decade that could wreak havoc on the nations power system.
NERC indicated in their “Long-Term Reliability Assessment” that this “creates blackout risks for most of the United States.”
The New York Independent System Operator (NYISO) reported that “the grid operator’s extreme winter weather scenario shows that peak demand could increase to as much as 26,086 MW, higher than its previous all-time winter peak.
NYISO repeated its earlier warning that it expects a sharp rise in wholesale electricity prices, and in consumer bills, this winter due to lingering impacts of the pandemic and Russia’s invasion of Ukraine.
The U.S. Energy Information Administration projected that the price of natural gas delivered to electric generators would average $8.81/MMBtu this summer, up from $3.93/MMBtu in 2021.”