Chattanooga Electrical Engineering News Blog
Topics Related to Electronics and Electrical Engineering
NBCNews.com – Energy, Spencer Kimball (CNBC)
“Renewable energy demand will triple over the next seven years as data center growth accelerates to facilitate the proliferation of artificial intelligence, NextEra Energy CEO John Ketchum said Wednesday.
NextEra added 3,000 megawatts of renewable and storage projects to its order backlog in the second quarter. Of those, 860 megawatts — or 28% — come from agreements with Google to power the tech company’s data centers.”
EnergyCentral.com (source CNBC)
In the U.S., with the increased connections to the power grid by cleaner, greener, carbon-free electric generation, and renewable resources, the FBI has issued a warning for the nations power system. “The federal government is becoming more concerned about vulnerabilities with new energy systems being a target for cyberattacks.”
Adversaries and hackers are looking at potential weaknesses in the power sector with “private and individual owners of renewable power systems.”
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 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 US Electrical Grid Infrastructure continues to be vulnerable to cyber attackers and foreign nation state adversaries in attempts to bring havoc on power systems that supply other critical infrastructures.
Cyber security protection continues to be a major focus on power utilities and other critical systems. These cyber threats continue after power companies and their contractors as in the recent attacks.