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Emergency Power! From the
ARRL!
 |
Ham Radio Emergency Power Portable,
Wind, Solar, Emergency Generators and Family Emergency
Survival Buyer's Guide
  
This article is in 3
parts:
1. Emergency
Generators
2. Solar Power and
Wind Generators
3. Family Emergency
Survival Guide
Electricity
Generators for Ham Radio Emergency Power at home and in the
field in worst case disasters
Part
1. When it comes to emergency power for the ham
radio station and your personal home survival there are two
basic types of power sources for survival:
Generator and
Battery.
For the purposes of this article, we
define a generator as a
sustained source of electrical power which can be from commercial
suppliers, wind turbine generators, solar panels, water driven,
gasoline, diesel, natural gas, etc.
We define a battery as a temporary
electrical energy storage device where electrical power is stored
and used over a period of time and then
recharged.
This article assumes there is no commercial
power for an unknown period of time and in extreme situations of
widespread disaster. It also assumes that you will want to be
prepared for your personal survival with all of the needed items
used during a prolonged emergency! See bottom of power article for
more on personal survival during
emergencies!
When that battery runs down, and
it will, what is left to charge it?
Enter the fuel
generator and a good charger!
The most economical
way to supply power to that charger or any other electrical
equipment during a power outage for your ham radio station or
your home is to use a portable generator of the
appropriate wattage for your needs (at least 4000 Watts for
starters) and run extension
cords into the shack or
home to power your equipment. A safer system is to have a certified
electrician install a power transfer switch, connected to the
shack's main electrical panel. Just fire up the generator, run a single extension
cord into the transfer switch and power the circuits you need
through the main circuit breaker of your home. This eliminates the
risk of electrical back feed injuring utility workers repairing
downed power lines. Small
portable gasoline-powered electric Generators can provide power for
ham radios and station equipment, computers, TVs, small kitchen
appliances, lights and other comforts of civilization when you
are out roughing it in the woods or in an emergency situation at
home. If cell and land line phones are out, you won't be! If power
lines are down, odds are the land line telephone is dead
also.
Portable Generators
can be put to work on sites that
have no electrical service, providing clean, reliable power to
operate the Amateur Radio station and other desired
survival equipment. Most are gasoline-powered, a few run on
diesel, and some models have multi-fuel capabilities, running on
gasoline, propane or natural gas. These are generally full-featured
machines with engine idle control, GFCI receptacles and 120 Volt
full power switch.
Residential Standby
Systems
Emergency home and ham shack
standby Generators can automatically restore power to your
house in about 20 seconds. When the power goes out, the generator
automatically starts if it is auto starting and continues to
run until power is restored or you run out of fuel. You can choose a
generator that delivers enough power for the entire house (including
air conditioning or at least heat during the winter) or go with a
smaller unit and power a few selected circuits, like the ham
equipment, refrigerator, sump pump, furnace fan or heat and
several lights for basic survival plus your ham equipment under
emergency power situations. It all depends on your budget and how
well prepared you want to be and in the very worst situation, how
long you want to live!
These all-weather Generators
are installed outside the home and are wired through an automatic
transfer switch usually sold separately to the main electrical
panel. The use of an automatic transfer switch is required when
generators are connected to home wiring.
Home standby systems can be
fueled by natural gas, LP gas, diesel fuel or gasoline. Most Amateur
Radio operators use the gasoline models. Many models can be
connected to the home's natural gas line, eliminating the need to
fill fuel tanks. Standby emergency power system capacities range
from about 6,000 Watts up to 40,000 Watts and more, and start
automatically-even if you are not home.
Depending on the fuel supply, and that is the
critical phrase here, size of Generators , and the power
generated, you can run for hours, days or even weeks! Your
running time all depends on the amount of fuel you have either
on hand or access to. If there is a massive widespread power
outage over an entire grid or several states due to severe
storms, earthquakes, floods, etc you won't be able to get fuel from
commercial sources... their power is out
too! Even if fuel is out there somewhere, can you get
to it?
Plan on enough fuel to last under worst case emergency
situations, but how do you plan the unknown? If fuel can not be
obtained, then no fuel powered generator will run on air!
RV Generators
Quiet, powerful gasoline,
diesel or LP-powered generators can be installed in your RV, 5th
wheel trailer, truck camper, tent trailer or travel trailer to
provide electrical power on those camping and field day operations
or just bring along a portable fuel type generator that fits your
power requirements.
Questions You Should Ask
Before You Buy a fuel powered Generator
-
What is the generators
wattage capacity and will it support your needs, including startup surge power required by some
equipment? What are your peak kw hour
requirements?
-
Does the generator have
enough outlets to plug in all of the items you want to power? If
not, what can you do about it?
-
How noisy is the
generator? Are there noise restrictions in your neighborhood?
Would they be enforced in an emergency situation?
-
What type of fuel does it
use? Will you be able to get to fuel?
-
How large is the fuel tank
and how many hours of operation will it provide? How many hours of
operation will you need? How much
fuel do you have on hand? Where can you get
fuel when all power is out over an extended area including gas
stations? If you can't get fuel, your fuel powered
generator is of no use to you when it runs out!
-
Is the generator easy to
move around? Does it have built-in wheels and handles for
portability?
-
What accessories will I
need to run the generator (fuel, heavy-duty extension cords,
transfer switch)?
How Many Watts Will Your
Emergency Generator Need to Produce regardless of what type
it is?
Add up the wattage of your ham
equipment, tools, appliances, motors and any other equipment or
household items you want to run at the same
time. Then select a generator with the RUNNING wattage rating
to exceed the total load. Keep in mind that tools and
appliances with electric motors require additional tool/appliance
SURGE wattage at startup that can be double or
triple the normal running wattage requirement. Look at the
surge watts required and make sure you choose a generator with
enough additional wattage to start them. Keep in mind that you
typically are not starting more than half of the items at the same
time.
Most home appliances and
power tools are 120 Volts; larger appliances like electric stoves
and clothes dryers may be 240 Volts. Generator power is measured in
Watts: Amps x Volts = Watts
You can use the Wattage
Chart below to estimate the wattages of the equipment tools,
appliances and motors you will be operating at the same time. Wattage noted below are approximates only; please
refer to tool, equipment or appliance itself for specific
wattage required and pay close attention to the "Surge Wattage"
required as a minimum!
Wattage
Chart |

|
Running Wattage
Required |
Surge Wattage Required
at Startup |
Household/RV |
Coffee
Maker |
1750 |
0 |
Dishwasher:
Cool/Dry |
700 |
1400 |
Electric Fry
Pan |
1300 |
0 |
Electric
Range: 8in. Element (Boiling water) |
2100 |
0 |
625W
Microwave |
625 |
800 |
Refrigerator
or Freezer |
700 |
2200 |
Automatic
Washer |
1150 |
2300 |
Electric
Clothes Dryer |
5750 |
1800 |
Furnace Fan
(Gas or fuel oil): 1/8 HP |
300 |
500 |
Furnace Fan
(Gas or fuel oil): 1/6 HP |
500 |
750 |
Furnace Fan
(Gas or fuel oil): 1/4 HP |
600 |
1000 |
Furnace Fan
(Gas or fuel oil): 1/3 HP |
700 |
1400 |
Furnace Fan
(Gas or fuel oil): 1/2 HP |
875 |
2350 |
Lights |
As indicated on bulb |
0 |
**Ham Radio Transceiver** |
50-200 (Depending on
output) |
0 |
Sump Pump: 1/3
HP |
800 |
1300 |
Sump Pump: 1/2
HP |
1050 |
2150 |
Color
Television |
300 |
0 |
RV Air
Conditioner: 13,500 BTU |
1500 |
2200 |
Room Air
Conditioner: 10,000 BTU |
1500 |
2200 |
Central Air
Conditioner (for 2200 sq. ft. home*) |
10,000 |
11,250 |
Small
Appliance |
200 |
1700 |
Heating and charging
equipment |
Portable
Heater (Kerosene, Diesel Fuel): 50,000 BTU |
400 |
600 |
Portable
Heater (Kerosene, Diesel Fuel): 90,000 BTU |
500 |
725 |
Portable
Heater (Kerosene, Diesel Fuel): 150,000 BTU |
625 |
1000 |
Battery
Charger: 15 Amp |
380 |
0 |
Battery
Charger: 60 Amp with 250 Amp Boost |
1500/5750 |
0 |
Battery
Charger: 100 Amp with 300 Amp Boost |
2400/7800 |
0 |
Computers |
Desktop |
600-800 |
0 |
Laptop |
200-250 |
0 |
Monitor |
200-250 |
0 |
Fax |
600-800 |
0 |
Printer |
400-600 |
0 | This list is not an all inclusive list and
your requirements may be different!
*Based on average-sized
unit. Central air conditioners differ in wattage requirements;
consult owners manual for specific wattage requirements. **A
transmitter will usually operate at about 50% efficiency, so double
the RF output to obtain the amount of power required. The equipment
fuse is usually rated at 150 - to 200% of the actual current draw,
so multiply the fuse value by 0.5 to 0.67 to calculate the
approximate current consumption. Since most modern ham
transceivers operate from 12 -15 volts DC, you will need either a
fuel type generator that outputs this DC
voltage directly or you will need to have your power supply for the
transceiver plugged into the emergency supply to convert the AC
to DC for the power supply.
A typical calculation
based on using only one HF transceiver:
Transceiver
400 watts (This adds some overkill as most transceivers transmit
about 100 watts with full power output)
Laptop computer 40
watts
lamp 60 watts
TOTAL 500 WATTS IF YOU RUN NOTHING
ELSE (Source: ARRL) Suggested generator: 1000 watt Generators
Now add: one refrigerator 2200kw
one electric range
(8"element) 2100kw
Plus radio gear with one extra 60 watt
lamp for total kw = 4,860kw generator NOTE: It is best NOT to run a generator under
it's full rated capacity! Add about 20% capacity to the kw hour
total above to the generator rating to be on the safe side. Now
add 20% extra = 972kw for a total of 4860 + 972 = 5832kw generator
needed. Recommended Generator: 7.5KW Generators
So
by adding together the wattage requirements for all the
electrical devices that you want or must run to determine the
minimum continuous wattage, or start at
the same time, AND BY ADDING YOUR HAM EQUIPMENT TOTAL
WATTAGE to that number, you can determine the minimum
surge wattage, you will need from emergency power Generators
.
Typical Home Standby
Power Needs:
Minimum
Recommendations for Typical Home Standby Power (1 kw =
1,000 watts = 10 each 100 watt bulbs for 1
hour)
Situation Type |
All Items at
once |
Situation #1 |
Lights Color Television Furnace Fan (assuming
gas heat) Freezer Refrigerator Sump Pump |
6.6kw |
Situation #2 |
Includes
Customer #1 and central air |
10.5kw |
Situation #3 |
Includes
Customer #1 and a well pump |
10.5kw |
Situation #4 |
All of the
above |
13.5kw | Red sections are recommended kw hour
generator when using all items at once.
Danger! BEWARE OF CARBON MONOXIDE
FUMES! NEVER RUN A GENERATOR INSIDE ANY ENCLOSURE
WHERE HUMANS OR PETS CAN BE EXPOSED TO IT. ALWAYS RUN IT OUTSIDE OR
A WELL VENTILATED AREA! BE CAREFUL USING ANY FUEL DUE TO
THE FIRE AND EXPLOSION HAZARD AND BE CAREFUL
WITH ELECTRICITY! YOUR SURVIVAL MAY DEPEND ON COMMON
SENSE! DO YOU HAVE A FIRE EXTINGUISHER!
So what fuel powered generator should I
buy? When in doubt, remember that
bigger is better! Oversize if at all
possible.
  Part 2. Solar Power
and Wind Generator Alternatives for the Ham Radio
Operator!
Now that you have learned more
about fuel powered generators for backup or primary use in a very
drastic emergency situation, you may have decided to think more
about what you would do in a worst case situation pertaining to
the NO FUEL to power that
generator when things get really bad! There are really only 2
logical choices left.......
This is where solar or wind power
comes into play.
Each has it 's merits and each
is designed with a specific source of energy to power it.
SOLAR POWER SYSTEMS IN
GENERAL Just like the fuel powered engine that
gets it's energy from hydrocarbon based fuels, solar power of course
is powered by sun light which is FREE, and converts sunlight into DC
electricity. So if you live in an area that gets lots of sun year
round, then this is a very good choice or a good alternative to
other types when they need backup. The suns energy is converted
to DC electricity using solar cells arranged in panels or arrays
that are mounted outside facing direct sunlight. The DC is then
transferred to usually a charge controller that charges your
batteries. Then the battery current is converted sometimes depending
on the system, to AC which runs your equipment and other devices in
your home. As long as the sun shines on the solar cells, they
produce electricity to charge your batteries. Depending on the
output of the solar cells and their size, the size of your batteries
and other factors, you now have an endless supply of electricity.
The main factor involved is the amount of sunlight available, and
the solar systems specifications. Always consult with the experts to
determine your specific needs: GoGreenSolar.com
- #1 online destination for solar panels & wind
power!
WIND POWERED
SYSTEMS Wind
power, is just that.... wind turning blades connected to a turbine
that generates either AC or DC. The electricity is then passed to a
controller that charges batteries for further conversion to a
useful voltage. Wind is also supplied FREE
by Mother Nature!
Since wind powered systems
depend entirely on the speed of the wind, they must be mounted in a
location and geographical area and height above
ground that will enable them to make maximum use of those
breezes. Many if not most will not operate nor generate
electricity in very low wind speeds. Most are governed against very
high winds. All wind powered systems are totally dependent on the
speed of the wind. Without wind, there is no power generation unless
you have another backup system in place like Solar power. So you can
see that in very extreme situations, you may want to consider using
both if at all possible. Your needs for survival will take much
decision making and planning on your part.
Your location will determine
if the average wind speeds are sufficient to make the wind powered
system feasible. So it is always advisable to check with the experts
concerning specific details of the required wind speeds and systems
for your area and requirements.
A wind powered system can be
very complicated for the average person to install that will produce
large amounts of power for home use. Consult with the experts always
and be safe.
Editor's
notes:
Regardless of what type of
system you choose for emergency survival power, you will have to
take a close look at your individual situation and determine which
system/s will best fit your long term goals. Remember, you could be without commercial power and
fuel for only a few days...or it could be weeks or even
months depending on where you are.....If you are looking at
the long term, unknown, worst case conditions, then there are only
two choices you have to consider... wind or solar or
both when you can't get fuel...simple as that. Do you
remember January 2009? Keep reading......
The January 2009 ice
storm was a major ice storm that
occurred over parts of Oklahoma, Arkansas, Missouri,
Illinois, Indiana, West
Virginia, and Kentucky. The storm
produced widespread power outages for
over 2 million people due to heavy ice accumulation. The hardest hit
areas were in Western Kentucky with over 500,000 residences without
power during the height of the storm, including 100,000 without
power for over one week, and northern
Arkansas, with 300,000 residences without power. This ice storm
killed 65 people nation-wide, 35 in Kentucky. Most deaths were attributed to carbon monoxide poisoning due to power generators or kerosene heaters being
used indoors without proper ventilation.....(Source, Wikipedia)
We highly recommend GoGreenSolar for
Wind or Solar power systems.

Part 3. Family
Survival Guide
in Emergencies!
What will you and your family need to
survive in a major widespread emergency? More click here!

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