Posted on Wednesday, November 02, 2011 - 07:18 pm:
Quite common for utilities to send crews to disasters. The Local guys go out on a regular basis, as Rochester NY is well located to help out from New England to Illinois. Once every year or so, we need the help here.
City, I still think straight to Soylent Green is a "better" answer than power generation. Government paperwork now..... That burns nicely.
Perhaps the finest movie on overpopulation and........ you guessed it.... Global Warming. ( from "Make Room, Make Room" by Harry Harrison )
About a hundred years ago there was a woman that killed her boss(she was a live in maid)in England,to get rid of the body she rendered her down to lard then sold the lard in the local pub.When she realized how much money she could make she started killing random people and sold the lard.So,fat can be converted to diesel fuel.Soilent Green and diesel fuel,what more could you want?
Amps or KW? A 17 KW would fully power house and shop minus the 50A plasma torch at full power 10 KW would handle the house alone. We have a tiny home by today's standards, just 1'100 SF. The 2.5 ton AC unit is overkill. Water-heater, central heat, and range are gas, except for broiler element in range.
Just the one 200A service feeding house and shop both. Shop power goes through 100A breaker in main load ctr.
What's a whole house UPS add to the cost? We have momentary outages not too infrequently, lots of thunderstorms, and having to reset the clocks is a pain. Seems like a couple big truck batteries a power inverter and the applicable switch would do the trick.
Start time on a genset differs medical care gensets have a 30 sec start standard A rapid start generator needs a block heater so you do not need an engine warm up delay of transfer. Example start your 1125 on a cold day and go to full throttle . Warmm oil flow better and the engine is near normal operating temp. Typicalay on a auto motive engine its about 1800 watt heater with a tstat to control temps A ups large enough to run the house load is expensive. A small ups on critical circuits is doable feed it from the main panel and its usually cheaper to size the generator for the whole house than separate the entire house panel most of the time we just use an APC ups from the computer stores for small loads. Its cheaper than a large UPS and its portable to the loads and home owner replaceable
Check out home power magazine get one quick thier advertisers are biting the dust fast thier are a few nice battery back up inverters that mount outside near the meter can with a set of agm bateries and inverter watch your loads and separate them properly and it may meet your needs.
PM me i ll send you my # if you want get more info
Makes total sense to just UPS the desired circuits.
The cheap 500 hr rated Generac units I've been looking at probably don't have any kind of warm-up, do they? I've not read up on them in detail. Recommendations? The 500 hr rating does bother me some. How the heck more costly could it be to make the thing more durable?
I have an 12v/110v inverter to run my heating system,connected to a bank of batteries and an isolation switch. Flip the switch and it completely isolates the boilers from the the house and operates the boilers only. 3 amp pumps "should" run several days. Also have a small generator if I have to charge the batteries .....but to run the whole house for several days would cost a small fortune in gas. Where are you going to get gas anyway, if the town is dead? Siphon out everything I own. I'm usually sitting on 50 to 100 gallons with all the damned toys I own. A week is doable,two weeks and I'll start to get hungry.......
Natural gas. Piped right to the house. For home standby generators, it's the way to go.
Finally found the turn-on time for the Generac Guardian series, just 10 seconds. Nuisance interval settable between 10 and 30 seconds. I guess that means a minimum of twenty seconds from outage to generator going online.
Blake the question is the inrush amps on the compressors and resistance heaters. The best of the generac small generators are the 50 KW 1800 rpm with Ford 3.0 v6 and the 25 Kw with the 2.3 liter ford inline 4 The 200amp service entrance switch is simple and have a easy manual model. If you have a Inverter started A/C system your good to go with a 25 kw Send me a list with all the circuit breakers hvac name plate info water heater dryer range ovens pumps etc then I can size a generator for you
Thats a good set up Court do a load calc on your loads and inrush currents Compressors are 5 times lra as opposed to rla large Iverter loads are factored at 8 times running load since they are instantanous rather than a Electrically slow motor winding.
The Ford motors have taken over most of the 20-150kw Generator Engine market Ford engines have a hardened valve seat that hold up to gaseous fuels very well. gasoline engines have intake cooling due to fuel vaporization. Why we use Carb heat at High vacuum in Piston Aircraft engines on approach. Pm me for my # and Ill help with a load calc and selection
Kitchen range is gas except for electric broiler element
I can't imagine more than 60A total. Maybe with everything above kicking on and the vacuum cleaner, coffee maker, fridge, garbage disposal, microwave, and hair dryer all running?
The units you mention are high end liquid cooled. Nice. Probably a lot more than I need though.
Spring for the 14K unit (it's 13K on nat gas, 14 on propane, the 12 is actually only 11 on nat gas)). You don't want to use 100% of the generator.
I got mine from electricgeneratorsdirect.com and am very pleased with it.
I only have 100 amp service, so I only needed a 100 amp service entrance rating on my transfer switch. The 200 amp switches are pretty expensive. I went with a whole house transfer switch. Much simpler than adding another panel. If you're a do-it-yourselfer on these kinds of things, great, if not your gas company probably runs installation specials with rebates etc. Check it out.
As far as the time between power out and generator on, it's about 15-20 seconds. It waits a few seconds to see if the power will come back on, then it starts and runs for a few seconds to stabilize the RPM, and then it tells the transfer switch to kick over. It will run for a few minutes after the power comes back on to ensure that it actually stays on, and also to cool down. It has a pretty hearty fan on both the inlet and outlet of the cabinet. Air is ducted to the heads and there is a separate cooling air intake for the generator head.
You can download the owners manual (PDF) from electricgeneratorsdirect.com for any of the generators they sell. Might help you make a decision.
14kw (13 on natural gas), includes 200 amp service entrance rated automatic transfer switch. That's a whole house switch, no need to rewire for emergency circuits.
It wouldn't be to difficult to split the shop service from the house. Might be the way to go, just add a 2nd meter. Hmmm. Need to check if the power company charges a minimum on a 2nd service, that may be why the combined was the way to go. There will be months when the shop hardly gets used power-wise. Cheap as I am, I don't want to pay $20/mo for nothing.
Blake the question is what size a/c compressor do you have if its a 3.5 or above the aircooled 20 is what you need. the Lra is what you calculate the size needed. After the 2004-6 hurricanes we had over 50 of the 11 -15 kw stators burnt out in the shop Home depot said sure it will run your whole house Generac said we will provide warranty replacments I was paid full labor and a parts markup to replace all those stator I told Generac they were nuts the product was improperly installed but they wanted to do it. Generac is the best vendor of all that I deal with on warranties they pay in 2weeks if you have you paper work correct and they pay parts mark up on warranty parts If you can swing it get the 25 kw with the 2.3 ford
The minimum required circuit ampacity (LRA?) for the condensing unit (compressor + fan motor) is listed on the plate as just 18.7A. It's a 2.5 ton (30,000 BTU/HR) unit. Surely a 12 KW generator claiming 40A capacity can handle that plus the rest of the little 1,100 SF natural gas fueled (hot water and kitchen range) house? I'm not looking to spend much. The air-cooled units fit my budget. I can't see investing $20K+ on a generator for a home that might be worth $90K.
Good to know Generac is a stand-up business. The depth of their product line is impressive.
No freebies the house hold management unit has her eyes on these stone floors. Now say a Large Generator purchase would fill her Xmas stocking. Heres the deal remodel re furnish before a 1190 or EBR to be named later. Something about having TOO many Buells crazy talk since Im short of having ALL of them. She doesnt understand
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