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Sandy Left me Powerless for Several Days

11/15/2012 10:55 PM

Interested in purchasing a full house electric generator for a 3500 sf home.

What are features I should look for?

What questions should I ask the seller?

Natural gas is the type unit I'm most interested.

Thanks for any ideas.

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#1

Re: Sandy left me powerless for several days

11/15/2012 11:25 PM

You need first to figure out which loads you want to run during the power outage, and provide enough KW for them. Maybe a wild guess of 10KW in your case, which could swing a ways either direction. The next biggest variable is probably manual vs. automatic switchover. If natural gas service could be interrupted, propane might be a better choice, or even diesel or gasoline. Quite a few variables to consider.

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#2

Re: Sandy Left me Powerless for Several Days

11/16/2012 3:44 AM

Noise is a real issue. Surge power and running power are important. As for the latter two, products from the great supplier to the west in the east, fail to meet published specs. Frequency regulation is also a concern from these same folks. Mine was off by 2.5 Hz, enough to keep my UPS from switching off. Installation location is important, both for the genset and the fuel tank.

How often does this happen? Once every 25 years, or do you lose power more frequently? I would venture this will happen more frequently, as we switch to unreliable "intermittent" alternative power sources. The purpose of the much ballyhooed "smart grid" is to allow power companies to shed the ordinary blokes like us individually, so that our "betters" may enjoy their exalted position. Currently they can only shed entire sections.

Diesel and gasoline should be eliminated because of availability. Also diesel engines like a constant load, usually over 90%. Natural gas availability is an issue on Long Island.

If space and a safe (dry) location is available, I would get together with my 4 neighbors and get one large enough to supply 75% or so of the peak load. This means water heaters. electric cooking, clothes driers may have to staggered, but the maintenance, noise, and code compliance can all be shared. It also may ameliorate "generator" envy.

If not, go for the smallest, quietest portable that will meet your needs, 2 burner cooking, clothes drier, furnace, etc keeping in mind, the specification problems mentioned above. Small as they use less fuel and can be moved to a dry location. Well pumps and A/C compressors may use more than twice there running current to start.

Definitely do natural gas with backup of whatever works (LNG, propane or butane).

Remember the "portable" units are not designed to power a house. They are meant to power individual appliances. Same with most inverters. Therefore, code compliance is mandatory, both for you and your families safety, and that of the utility workers.

You guys are all in my prayers.

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#14
In reply to #2

Re: Sandy Left me Powerless for Several Days

11/19/2012 11:56 AM

Just a point of warning; I would stay away from connecting with neighbors. There are too many potential problems. One being who takes care of the maintenance/upkeep/repair costs? What happens when one of the original neighbors moves and the next person doesn't want to participate, or is a pain in the butt? If you want to help people from your generator, that would be a better set up. Just understand the human dynamics that come into play when there is a bit of traumatic event involved.

It is better to be independent. Here in Kansas we occasionally have to do without power for a variety of reasons. We have purchased a stand alone 3500W generator and that takes care of us quite adequately in the winter time. We can't run everything all the time but you just pick the priority items and run those as needed. The fridge and chest freezer don't need to be plugged in all the time, they can typically go for a day without being plugged in. We have a 10 ga. cord coming into the house and plug in cords from that point. We plug in the furnace (propane), lights, etc. It isn't perfect but it works pretty good till the power comes back on.

You also discover a bit how much you can do without for a period of time.

The ideal set up would be a generator that can service the whole house, with an Automatic Transfer Switch. That gets kind of pricey for the small amount of use it gets.

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#3

Re: Sandy Left me Powerless for Several Days

11/16/2012 6:43 AM

I would look into something that runs on natural gas, but would be easy to switch over the jets to propane if needed. With a backup propane tank, you would have the best of both worlds.

If you have access to the jets, converting over to your propane source could be done in less than a half hour.

http://www.generac.com/Residential/QuietSourceSeries/

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#4

Re: Sandy Left me Powerless for Several Days

11/16/2012 9:26 AM

I'll agree with Tornado and add details.

You will want to figure what loads you want to run. Obviously, your refrigerator is a must have. There are also some lights that you will want available.

Heat is another concern. If you have gas or oil heat, these are relatively light loads that can be powered with a smaller backup generator. A heat pump, with its compressor and blower, is a heavy load. If you have a heat pump you will probably need a larger generator if you want to run it during an outage. It's also an option to have some sort of back up heat (I have a propane heater) and leave the heat pump out of the back up system. This will allow you to buy a smaller generator.

In my case, 5kW will run my water pump, sump pump, fridge and some lights. I have the ability to run my TV and computer as well, but I usually don't bother as I've typically lost cable and internet when the power is out. As I noted, I have a propane heater that I can use to avoid using the heat pump.

Do use a properly installed transfer switch. As part of the backup system that is a must have for safety reasons as well as ease of use. A permanently installed generator can be installed with an automatic transfer switch. I use a manual switch and a portable generator.

Lastly, if you buy a portable generator, DON'T EVEN THINK OF RUNNING IT INSIDE THE HOUSE! In never fails, during widespread outages, somebody tries that and sickens or kills himself or his family.

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#16
In reply to #4

Re: Sandy Left me Powerless for Several Days

01/05/2013 11:30 AM

I strongly agree with the last part of your reply and would like to expand on it:

As the ex-chief of a fire dept in a suburban/rural area of NJ I have seen several incidents where improper use of generators have caused extreme problems. Most recently during our 9 day loss of power due to Sandy a homeowner lost his Mc Mansion. He was operating a 5Kw generator in his attached garage located under part of the house built on a hillside. He had also stored numerous 5 gal cans of gasoline in the garage along with his cars (we had gas rationing due to Sandy). As he was refueling the generator he spilled some gasoline on the generator and the floor. It ignited and in his panic he dropped the plastic jerry can of gasoline onto the fire. He next called 911 and the first dispatch went out as a "generator fire in an attached garage with other fuel containers nearby". The second dispatch 2 minutes later went out as "attached garage under the house structure fire". Despite the fire company returning from another call about 1 mile away at the time the first engine arrived to find half the house engulfed in flames. Compounding the problems with the fire was that the area does not have hydrants and water had to be transported from a mile away in tankers. Needless to say the only things left of the house were the chimney, the foundation, and the storage shed located in the back yard.

Have others considered how they are going to obtain gasoline or diesel if there is no electricity at the pumps? This was a problem with Sandy. Many people who were fueling generators ran out of fuel during the first few days because the gas stations had no electricity for their pumps or they were waiting for tanker deliveries.

How can you store gasoline in sufficient quantities safely? 5 gal cans in sufficient quantities is dangerous. There are bulk systems but they are expensive and have the potential for the gasoline to go bad due to prolonged storage. Is the risk worth potentially losing your house? Natural gas with a permanent installation is much cheaper than replacing a house.

As an aside, the homeowner who lost his house left and checked into a hotel within 5 minutes of starting the fire. Probably the smartest thing he did!

Good luck, Old Salt

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#5

Re: Sandy Left me Powerless for Several Days

11/16/2012 10:55 AM

We get lot's of hurricanes and tropical storms here in Florida. Adding insult to injury, I live in the country and will always be the first to lose power and the last to get it back.

I asked myself the same questions you are asking, for the last time about 2-1/2 years ago.

After much research, I installed a 10KW which runs on propane. I have a large propane tank away from the house with an underground line feeding the unit. I keep the tank at 70% fill minimum. The unit starts once a week and runs for 5 minutes. It is very quiet and I barely know it is running.

I sized my unit based on a few "necessities".

1. This is Florida...I wanted AC. This automatically required a larger unit.

2. I live in the country and have a well. I wanted water...must power the pump.

3. We sweat here...I wanted hot water for showers.

4. A couple more KW and I power the rest of the house.

10KW it was. Not much more $$ than a 5 KW unit.

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#6

Re: Sandy Left me Powerless for Several Days

11/16/2012 1:28 PM

The best guarantee that you'll never get hit by another hurricane like that, is to buy a big backup generator.

That's the way it would work for me.

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#7

Re: Sandy Left me Powerless for Several Days

11/16/2012 10:44 PM

Here's a nice, quiet alternative source: fuel-cell generator with available waste heat recovery for water heating:

http://www.cfcl.com.au/BlueGen/

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#8
In reply to #7

Re: Sandy Left me Powerless for Several Days

11/17/2012 12:11 AM

What about using Solar Panels for such calamities. Solar water heater for space heating and shower. This will need an insulated storage. It will be cheapest and when Power is there also,you can use it instead of electricity. Investment will payoff in few months.

For Lighting and other loads eg Refrigerator and microwave, charging of gadgets ( for kids) you may install solar electric panels with maximum two days back up.( taking cloudy days for 2 days). May be a 5 Kw peak can provide around 25 Kwh/units of energy per day.

For long cloudy days ,how about charging the battery by the car engine?

How about fully equipped Caravan at backyard ?

Cheapest option is a portable 1 or 2Kw gasoline operated generator. It can be used with manual changeover. It is portable enough to carry in the boot of car.

Many options.

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#9

Re: Sandy Left me Powerless for Several Days

11/17/2012 12:13 AM

What about Heating by Solar water heater and Electricity by Solar panel with battery back up?

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#10

Re: Sandy Left me Powerless for Several Days

11/17/2012 1:00 AM

There is one option that seems to have been missed if you use a gas generator you can also purchase a conversion kit to run it off of propane that way you will have a multi-fuel backup.You can run it on gas till you run out then switch to propane for the duration or it runs out. I am not sure if you can also run one of the conversions on natural gas as well but it might be another alternative fuel if it can be done just by changing the jets/orifices, that may also be another alternative. I myself have solar panels and run off grid most of the time. I am working on increasing my battery bank to last me at least a week with little or no sun. Plus we are working on a tower to install a 1500 watt windmill, when it is not charging the batteries it can divert the energy into the water heater and when the wind gets too fast you can bog it down by putting the energy to the water heater and slow the windmill down or a restive load to burn off excessive energy and slow the RPM's. Here in tornado alley you stay prepared for anything from season to season. Also on the wind mill I am also including a disc brake to totally stop it from turning in winds above 65 mph so as to not damage the blades or the generator head when the wind speeds hit the upper limits usually about the time you see Dorthy flying by with Toto in the basket.

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#11

Re: Sandy Left me Powerless for Several Days

11/17/2012 2:07 AM

I just thought I'd throw a link in here. I've seen these advertised lately, but I can't say much about them.

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#12

Re: Sandy Left me Powerless for Several Days

11/17/2012 6:48 AM

Here on Ft. Lauderdale Beach we have some pretty nasty wind storms in addition to the Hurricanes every few years.

Outages are getting fewer and fewer, as the system weak points get beefed up. This year despite Sandy, concurrent neap tides and sand closed beachfront roads, the famed Boat Show went on, 2 blocks from the Beach.

Over the past 20 years I experienced two outages. One lasted almost a week, second one lasted 2 or 3 days, Shorter interruption. During Sandy 2 neighbors had wind driven rain pushed back thru window A/C units, amounting to less than a quart or so of water in their apartments.

During the first outage 11 or 12 years ago, I borrowed a barely liftable portable gasoline unit. running 2 or 3 hours out of 12, was able to keep the fridge cold and the several UPS units charged up, so that I had phone, answering machine, computer constantly available. Some neighbors bitched about is fairly noisy operation. Even one that I "time shared" the generator with! I had a portable propane camp stove, and several lanterns, some kerosene or "lamp oil" and several battery powered lights. Getting and transporting the gas was a major pain and source of worry carrying gas in a 3/4 full can in the car, risk of fumes, explosion etc

So, I spent about $800 to buy a slightly smaller Honda unit, known to be ultra quiet. It still is in the box. The last need was over before i was able to get a can of gas, after trying to siphon some from the car, Filler pipe has some "anti-siphon" gizmo that defeated ME!!!

So, my experience taught me to not worry about the 50 or 100 bucks of stuff in the damn fridge. Get bigger ups-es. And look for a buyer of the Honda, Oh yes, I did buy about a dozen new LED flashlights. Be Happy, don't worry so much, drink all the milk on day 1 and 2, then water from the toilet tank, flushing the potty with a bucket from the swimming pool. Enjoy going to bed when it gets dark.

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#13

Re: Sandy Left me Powerless for Several Days

11/17/2012 9:31 PM

The first question for yourself is why the whole house? What do you really need in a power out situation? If you want to pretend that nothing is wrong and go on living normally look for something 220V, 60-75A, auto transfer switch, monthly load test. Natural gas is good as long as the lines are hooked up. If you want to stay in the house and survive, decide what you need. Then 5-7.5KW, portable, plug in manual transfer switch, gas is good if you can keep about 30 gal. on hand and rotate it through other equipment to keep it fresh. Or the same unit on propane.

To answer your questions, Warranty, how long, by engine hours or month/year. Installation, by seller or subcontractor. Ask about the monthly test, most are no load,just runs the unit. The box stores sell stand bys but I would suggest going to someone who does it for a living.

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#15

Re: Sandy Left me Powerless for Several Days

11/27/2012 7:50 AM

Not only your home has become powerless but due to Sandy many homes has become powerless.

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