silver64
Ram Guru
- Joined
- Mar 5, 2019
- Messages
- 700
- Reaction score
- 573
- Points
- 93
I agree with almost everything you stated as I am also an electrical engineer since 1980. Mostly where we disagree is in how to rectify the existing power systems and increase production, generation and distribution and do all of this as safely as possible. Honestly there have been huge technological advances in nuclear power but the stigma of poorly designed and maintained reactors have created this fear that may never allow the widespread use of atomic power again. Its a shame because there are now mini reactors that could be distributed as opposed to a central site that could really fix a lot of the generation & transmission issues we face today. Things like wind power & solar contribute very little to the national grid as a percentage of the whole.I am an electrical engineer who has spent most of my career in the electric utility industry. My experience involves the design of electric distribution system installations including the latest generation of distribution smart grid equipment; as well as the design, installation, and testing of transmission/substation control equipment. I also have some experience in the planning and operation of bulk power operations, i.e., the transmission grid. For the last four years I have been in the forensic investigation industry, where I have investigated numerous incidents involving vehicle fires; including fossil fuel vehicles, battery powered vehicles, and hybrids.
There are some opinions in this thread that are incorrect regarding the specific challenges facing the power grid as our country increasingly electrifies. It's not one single issue - what is needed is widespread investment and deployment in renewables, transmission capacity, distribution smart grid, storage, reactive power compensation (this is a big one that is never talked about, basically it means voltage support), et. al. There are a lot of arguments against this investment, but honestly, Rome wasn't built in a day. We need to move in this direction if we are to survive as a species.
As to the vehicle fires, yes, lithium chemistry batteries *can* start fires, seemingly out of nowhere. These fires could be due to a number of factors, e.g. manufacturing defects, software errors, component failure, etc. The big issue is the storage and disposal of a battery electric vehicle that has been involved in a fire. There is a lot of energy stored in the battery packs that can be very hard to discharge after a fire because the circuits have been severed. Its not uncommon for a battery electric vehicle to start on fire again hours or even days after the initial fire. Some fire departments have taken to immersing battery electric vehicles in giant tanks of salt water in order to cool the packs and attempt to discharge any remaining energy (by shorting through the conductive saltwater). Fire departments are constantly training, and electric vehicles have been part of that curriculum since hybrids started becoming popular.
While I plan on keeping my 2021 1500 about a decade, I've already made the decision that my next vehicle is going to be all electric. By that time a lot of the challenges with range, charging speed, grid capacity, etc., should have better solutions than we have today. My job has me driving ~500mi/day max, and I believe that we'll be seeing pickups that meet or exceed that range in ten years. I look forward to seeing what the market has available when its time to give up my V8 habit.
With respect to Lithium batteries in the right (or really should say wrong) conditions they can cause huge issues for fire fighters because of he temperature at which they burn and volatility of how these fires can reignite as you stated. There is risk with any power source.