Chattanooga Electrical Engineering News Blog
Topics Related to Electronics and Electrical Engineering
From NPR News – Due to the arctic blast and frigid temperatures well below zero degrees, many electric vehicles (EV’s) were sadly affected. Since the frigid temperatures in the northern part of the U.S. reached levels below the EV’s normal operating temperature ranges for their batteries, the vehicles could not be re-charged or maintain a constant charge. This presented major obstacles for many Tesla owners in Chicago along with longer than expected lines for Supercharger stations.
A recent NPR article warns that much of the nation’s power grid is vulnerable to the winter threat approaching with major winter storms that could cause power outages and power shortages potentially affecting over 60% of US and Canada.
“North America’s power grid is vulnerable…People living in Southwestern states are at particular risk.”
TVA’s load growth demand forecasted is expecting over a 30% increase in power demand within the next decade. Like other utilities trending away from fossil fuel power generation due to stringent carbon emission regulations, TVA is retiring their coal-powered plants and replacing with cleaner energy generation and renewable resources.
The trend of moving away from older fossil fuel technology to cleaner generation systems is very costly. TVA recognizes this and has approved moving forward with capital expenditures of $15 billion that it will invest over the next 3 years by performing system reliability upgrades and transition into cleaner energy supply.
As coal power and other fossil fuels continue to decline as the nation’s leading power generation source, more power utilities are increasing renewable energy sources such as solar power.
Pennsylvania is replacing their planned fossil fuel generation retirements with clean solar power. The state is helping promote more jobs and job transitions for the green switch from traditional carbon emission type power generation into renewable energy resources.
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.”
Tesla has announced they will recall over 2-million electric vehicles that affect multiple Tesla models, like models S, X, Y, 3, and semi-trucks. The recall is due to its “full self-driving beta” software causing some life-threatening and unsafe conditions.
The recalls will include a free software update to patch any software bugs in the coding to improve driver safety.