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nanowrimo_lj2009-11-05 05:09 pm
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Power Outages
I don't know how to go about researching this without getting on a terrorist watch list, haha.
I'm trying to write a mass power outage into my story. But I need to know:
I'm trying to write a mass power outage into my story. But I need to know:
- Would outages happen on a city by city basis, or could something happen to make an entire state lose electricity?
- If said outage were to happen, what could cause it?
- I'm sure this depends on the cause of the outage, but worst case scenario, how long would people be without power?
- What types of buildings have backup generators to insure they will still have power in case of emergency? Hospitals and jails, I'm sure, but what else? Would a bank have a backup generator to keep the alarms going and the safe locked if the power's out?
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no subject
Keep in mind that small outages can coincide with large ones, so you can knock out an extra grid beyond what would be affected that way.
Oh, and after 2003 I think they were supposed to take steps to prevent the "domino effect" from knocking that much of an area out again.
All emergency services have backup generators. All hospitals and most schools have something, although the schools may only have backup for "necessary" services: ie, in school, the generator could keep power to the lights in the halls, but not to the classrooms, since many classrooms have windows. This would allow people to exit the building safely without scrambling for flashlights. Many commerical buildings have this same type of power: my store has a backup generator for the registers, the cooler, the security system, and the main computer, but not for the lights (we have windows), the deli counter (food has to be removed and placed in the main cooler during a power outage), or anything else. (Although our generator is not hooked up normally; we call the manager, and if power can't be restored quickly, someone from the company comes to hook the generator up.) My local Wal-mart seems to work on the same principle: I've been during a power outage, and the registers in the front worked, but there were no lights (my Walmart has skylights instead), the doors were propped open since they didn't run on their own, and none of the registers but the front ones worked. I would assume a bank or other security-concious organization would have a generator for the alarm system, but if not, the system going out would alert the company managing it to send the police to guard the bank.
In large cities, most grocery stores are probably going to have generators, since people automatically swarm the stores for staple food items. In the country, I think it's common to keep more food on hand at one time, since going to the stores takes more time and gas. But really, you can probably vary things the way you want; any store not having grocery items can and possibly will go out of power, any store with could only have enough to run the cooler and therefore close anyway; conversely, either one *could* have a backup generator (although a store selling something non-essential probably won't have many customers). The only real mandates are that emergency services, particularly hospitals, will have backup power for at least the more necessary of services (ie, life support, minimal lighting, emergency wards, vital-signs monitors, etc).
There is no single electric utility for the entire USA. However, some utilities manage larger sections than others.
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1. Where would outages happen? A brief background first. The “power grid” is actually many, many smaller grids (or networks) that have some degree of interconnection. There is currently (no pun intended J ) no way to store the electricity produced by a power plant, regardless of whether it is hydro, coal, nuclear, solar, or whatever. The inputs of power to each grid must match the power taken out (including the loss due to resistance in the wires, etc). One way to think of a grid is a dam (or other water source) connected to a network of pipes or irrigation ditches – if more is taken out than is put in, not only do some consumers not get what they need, but because of a loss of water pressure, some parts of the system cease to function! Going back to the electrical grid, the interconnections allow operators (humans or automatic programs) to transfer power from or to other grids/sources, or to sever the connections to prevent failures from spreading. (If you want to research more details, try www.bpa.gov, the Bonneville Power Administration’s web site.)
So, with that in mind, a “mass” outage would require those safety measures to be overwhelmed in some way. In the case of California’s rolling blackouts a few summers ago, it was a combination of increased demand (air conditioning, higher population, etc), with both real and contrived supply shortages. The operators had to keep the demand in line with the supply, or the whole system would have collapsed. For an entire state to completely lose electricity, the “local” power generation would have to be shut down, as well as the lines that connected it to other states’ grids (since they have to be able to carry a huge amount of electricity, those connections are expensive to construction and therefore there are not an excess of them).
2. What could cause that? I could spin all sorts of doomsday scenarios, so here are a few examples.
a. Electro-Magnetic Pulse. This was a favorite scenario to imagine during the cold war. Anyway, a large, atmospheric atomic blast would either destroy the electrical distribution infrastructure directly or induce a current to overwhelm and destroy grid components in a huge area.
b. Solar storms. Storms on the sun send drastically increased streams of charged particles toward the earth, which damage or destroy sensitive electronics.
c. Terrorism. Deliberate damage/destruction of power generation facilities and grid interconnections.
d. Corporate greed. Just look at what Enron did. They were trying to create an artificial shortage so that states would have to buy from them at very inflated prices. If, while they were manipulating the market, some real accident or event occurred, the entire system may have failed.
e. Incompetence/stupidity. When the price of copper went up in recent years, there was a rash of thefts of electrical wiring, transformers, etc., both in inventory and in use. There are those who would be happy to have all the coal-fired power plants (or nuclear, etc.) shut down immediately, consequences be damned.
3. You are right that it depends on the reason the power was out. Here, we had a very severe wind storm in late 2006. I think 90% of our customers were without power. Due to round-the-clock efforts by our crews (and any other crews that we could borrow or hire), that number was down to about 20% (or 6000 customers) within 72 hours. The rest were without power for a week or longer. From an operations standpoint, the crews have to be able to do the repairs safely (so if your scenario involves a natural disaster, war, etc, the start of repairs might be substantially delayed). Also, the backbones have to be repaired first (the high voltage lines). As far as priorities go, hospitals, public works (roads), police and fire have to be restored first. I hope you get the idea.
Wow, he wrote so much I couldn't fit it in one reply!
Re: Wow, he wrote so much I couldn't fit it in one reply!
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My crew had best keep an eye on solar flares...
...good thing they've got those massive ramscoops to collect and store energy for their backups! *wipes brow* But now I definitely foresee a solar storm in my novel's future...