Basics for Emergency Power Presented by Larry Lovell – N7RGW Back Up Power Basics for Emergency Power Presented by Larry Lovell – N7RGW

What You Need To Know Determine Power Needed (Current and Voltage) AC How long do you need to supply emergency power Battery – type, current capacity (Amp Hours) DC Power Distribution Method Method to recharge Battery Charger – recharge battery from house power. Solar – charge battery Generator – charge battery and supply AC power Wind – charge battery Inverter – converts DC to AC

You Should Start With Back – Up Batteries for your Hand Held Radio Some method of keeping batteries charged Supply Energy to other Amateur Equipment Power for Lighting Power for Heat or Cooling

Stand By Power - UPS Everyone should have one of these for your computer. But can also be used as a backup for HAM Radio. Add additional batteries and it will last longer. Each UPS contains: A Battery An Inverter (DC to AC) EMI/RFI line noise filters Full-time lightning protection AC Sockets Rating such as 550 VA/330W can tell you the maximum power that can be supplied. It will also give an estimate of time it will operate without external power. Cost: $60+

Trickle Charger – About $9 Just Add Batteries

Solar Power or Wind Power Cost $140 to $200 for Solar Just Add Batteries Will operate even when cloudy. www.harborfreight.com

Windmill Windmill will recharge battery and supply 12 volts or 120 volts depending on choice. Cost begins at about $400. Need a Regulator, batteries and distribution method. Some cities require a permit for permission to install.

Harbor Freight Included With Solar Three 15 watt solar panels produce clean, quiet energy Lightweight, weatherproof construction Amorphous silicon solar cells for maximum output in both bright and cloudy conditions Voltage regulator has easy-to-read LED display, 12V cigarette lighter socket, 5V USB, 3-6-9V DC outlets and two 12V sockets 2 - included Light Kit Includes mounting hardware, 12V Light Kit, battery terminal clamps and universal DC power adapter Accessories Included Coupons are available to reduce cost.

Inverter To Convert DC to AC 2000 Watt ($150+) 400 Watt ($35)

Gas Generator - $350 to $1500 Choose Wattage for total demand needed. 120 Volt 240 Volts Some have 12 volt panel Most often Generators have pull chord. Some have Electric Start Some come with wheels Most use gasoline, but dual fuel is available to use propane as well.

House Manual Electric Power Switch - $400 This switch prevents your generator power from leaving your house and going into the power lines. Without this switch, you could kill a Utility Worker trying to repair the Power Lines. May require an experienced Electrician to install Connect to Generator

Whole House Automatic -$ 5000+ Usually powered by Natural Gas or Propane. Power is switched automatically when the Home looses regular Utility power. Requires Licensed Electrician to install.

Tesla Powerwall

Anderson Power Pole Connectors Anderson Power Pole Connectors are becoming a HAM standard. You can buy prewired cables or make your own AMP Are the 15, 30 & 45 amp Powerpoles interchangeable? Yes. The 15, 30 & 45 amp contacts all use the same housing. Therefore, they all plug into each other. The only difference between the 15, 30 & 45 amp contacts is the size of the receiving barrel that holds the wire.

http://www.powerwerx.com/ Rigrunner 4005 $69.65 MFJ-1104 $39.95

What Batteries Should Be Used Lead-Acid – Least Expensive, Sizes vary (Wattage and Amp Hour) Easy to maintain. Nickel Cadmium – Easily Available. Problem with disposal and capacity. Nickle Metal Hydride – Resolves most problems associated with Nickel Cadmium. Lithium Ion – High Energy Density more energy per square foot Danger in charging (Requires Specialized Charger) Available in variety of sizes Long life

How Much Power Do You Need? Icom IC-718 Max Power Out: 100 Watts KT-8900 Kenwood TH-D7A Output Power: 5 watts Receive: 25 mA Transmit: 1.7 Amp max. Dual Band Packet and APRS capable Output Power: 25 watts Off: 30 mA Receive: 280 mA Transmit: 2.60 A 30 watts 1.46 A 20 watts

My Electrical Usage Over 2 Years Period Days From Last Read Usage (kwh) Bill Amount Jan 2016 33 827 $74.68 Dec 2015 31 769 $68.43 Nov 2015 32 590 $60.91 Oct 2015 29 519 $62.46 Sep 2015 30 522 $64.11 Aug 2015 463 $57.46 Jul 2015 583 $71.03 Jun 2015 165 $23.77 May 2015 $21.96 Apr 2015 214 $23.58 Mar 2015 199 $22.06 Feb 2015 141 $17.12 Jan 2015 176 $20.10 Dec 2014 156 $18.41 Nov 2014 168 $21.40 Oct 2014 28 137 $20.35 Sep 2014 146 $21.35 Aug 2014 167 $23.68 Jul 2014 447 $54.85 Jun 2014 530 $64.07 May 2014 559 $60.77 Apr 2014 610 $57.71 Mar 2014 599 $57.65 Feb 2014 712 $67.55 Jan 2014 999 $92.46 What happened here? I was on a mission in Salt Lake

Math Related Questions V=I*R P=V*I Electrical Power Usage My maximum electrical usage = 1000 KWH or 33 KWH per day. = 33000 watts in 24 hours or 1,375 watts per hour My lowest electrical usage = 137 KWH or 4.5 KWH per day. = 4500 watts in 24 hours or 188 watts per hour.

References Emergency Power for Radio Communications – ARRL https://www.rockymountainpower.net/ya/vpb/uh.wcss.html http://www.larrysglobalmall.com/ http://www.icomamerica.com/en/amateur/ http://www.harborfreight.com/ http://www.powerwerx.com/anderson-powerpoles/powerpole-sets/#ixzz3xM3HUhGA https://www.teslamotors.com/powerwall http://www.banggood.com/300W-USB-DC-12V-to-AC-220V-Power-Inverter-Converter-Charger-p-933948.html

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