Chattanooga Electrical Engineering News Blog
Topics Related to Electronics and Electrical Engineering
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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.
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.
Substations can be modelled in three-dimensions, allowing customers to see full scale in isometric views, or any views relative to positioning that they would not have had before with traditional 2D designs. Proper construction of electrical equipment in most 3D software also allows for efficient go-by production, as elements can be plugged in or removed in minutes, and entire substations can be remodeled according to revisions or to create whole new designs.
The ability to change the virtual materials of 3D models also allows for consistent and accurate representation of the substation. Instead of having a matte, grey mass in the shape of a transformer, circuit breaker, switches, concrete foundations, steel structures, insulators, and copper connection points can be expressed with proper physical dimensions of density, mass, etc., and includes appropriate colors that anyone who observes real-life substations can recognize.
Distributed Energy Resources (DERs) present major obstacles in grid reliability and protection against cyberattacks and threats. DOE states “they should be designed with security as a ‘core component.’
An attack on distributed solar or battery storage resources would have ‘negligible impact’ on grid reliability today, DOE said, but the capacity of DERs on the electric system is expected to quadruple by 2025 and the agency warned that each of those systems could be hacked.”