The main advantage of HVDC, and the reason it rules for undersea/underground cables is that it requires less insulation. HVAC must be insulated to peak line voltage equal to 1.42 times the rated line voltage spec.
For overground lines this is not a problem---just space the lines out a little more. For a compact cable however this leads to huge cost savings.
What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.