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Off-grid ham shack energy strategy

Discussion in 'Amateur Radio News' started by OH8STN, Mar 15, 2024.

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  1. OH8STN

    OH8STN Ham Member QRZ Page

  2. M6ECG

    M6ECG XML Subscriber QRZ Page

    Thanks Julian! Rock ‘n’Roll! :D
     
    N4FZ, OH8STN and (deleted member) like this.
  3. OH8STN

    OH8STN Ham Member QRZ Page

    You're very welcome.
    I recognize that smile.
    Wishing your great weekend.
    73
    Julian oh8stn
     
    KI5UXW likes this.
  4. KF8AFX

    KF8AFX Ham Member QRZ Page

    Nice setup, Sir. It's easy to take power availability for granted but when there is no power, then what? You have created a great plan for when there is a grid interruption.
    If you fail to plan, plan to fail.
     
    KI5UXW and OH8STN like this.
  5. OH8STN

    OH8STN Ham Member QRZ Page

    Thanks for saying so. Lots of time and "wasted" money through trial, error and a few failures. It's nice to get to this point.
    Thanks for the kindness.
    73
    Julian oh8stn
     
    KI5UXW, N4FZ and VK2021SWL like this.
  6. W1YW

    W1YW Ham Member QRZ Page

    ...the GENERAC kicks in...

    When all else fails, see above:)
     
    KI5UXW likes this.
  7. KS5KIP

    KS5KIP Ham Member QRZ Page

    I enjoyed the presentation. I'm like minded and planned my station accordingly but not as much in depth as you. I noticed the wiring from and to the Power Queen batteries and was curious why there was no fuses at the B+/B- terminals. At my battery (there is only one) I used 40 amp marine fuses that attach directly to the battery posts.
     
  8. W0RIO

    W0RIO Ham Member QRZ Page

    Nice setup Julian, solar and wind power will keep working long after a generator runs out of gas.

    It wouldn't be a bad idea to have a fused disconnect on each battery, that could prevent a
    fire if one battery shorts out internally.

    A class T DC-rated fuse (sand filled) and a high- current switch is a good low-loss way to go
    for 12V systems. I've found that Airpax ALM series circuit breakers work well, they are
    available in ratings that handle currents around 10 to 100 amps.

    I'd be interested in hearing more about your vertical axis wind turbine setup.
    Keep those videos coming.
     
    Last edited: Mar 17, 2024
    KI5UXW and W0JMJ like this.
  9. KI5HSE

    KI5HSE XML Subscriber QRZ Page

    Excellent presentation, Julian,
    The angle on your solar panels says much about your remote location and the need for redundant power sources.
    Semper Fi and 73.
     
  10. WA5KM

    WA5KM Ham Member QRZ Page

    A lot of people far from the equator just point the solar on a 90 degree wall. Some are adjustable and my friend builds tracking mounts.
     
    KI5UXW, HB9EPC and KP4SX like this.
  11. DO1FER

    DO1FER Ham Member QRZ Page

    The video is fine stuff. And it shows what is to use in the worst case of the worst.

    Normaly units of the disaster control got an action radius of about 30 to 50 km. And here I see the DX Patrol as very useful for privat persons. When the radio broadcasting stations from analog and digital are to receive with low power. To that SSTV Stations are possibel, too. In summary spoken words, maps, warnings and other useful pictures are to receive in different ways. (DAB+ / SSTV). And for home use I see more a small emergency generator than some batteries. Depending on the local conditions. At last to take care about the cells in normal times will fall away.

    Further the own action area will be limited also in a disaster. So that to communicate with near stations is more important than anything else. And VHF up SHF will have a bigger signficance than shortwave. Antennas are much smaller and the used and needed energy will go down in its consumption. For example contacts with 0.5 Watt are enough within a town. Here for example that my personal disaster assembly point, for to meet the emergency staff in a case of action, is about 2 km away. And different repeaters are to use with not more than 4 Watt. The power is enough for to reach out up to 70 - 100 Km.

    What in the video is to see, goes much more far than normal and is not recommended by the fire brigade, disaster control or anything else, for to keep that equipment at home. But to show what is possibel, it packs a punch.
     
  12. K0UO

    K0UO Platinum Subscriber Platinum Subscriber QRZ Page

    Great presentation

    Everyone should have an off-grid strategy for their amateur station.

    I have a full-time backup 20+ kW generator tied into my private natural gas wells, so I'm not too worried about power.
    My RVs all have solar. And a few of mobile HF through UHF stations, I have used those on several occasions of tornado activity and total Destruction in parts of Tornado Alley.

    73 from,
    The K0UO " Rhombic Antenna Farm" miles of wire in the Air & On the AIR daily
     
    KI5UXW and K9EZ like this.
  13. KM6HBH

    KM6HBH XML Subscriber QRZ Page

    I've been seeing stuff lately about going vertical with solar panels: https://www.linkedin.com/pulse/vertical-solar-better-than-traditional-installations-attspodina--shqwf/

    I have both due to space constraint, and noticed zero difference....However, it may be because I have more than I need. Seems like a good idea during the winter at my QTH.
     
    HB9EPC likes this.
  14. KM4RJF

    KM4RJF XML Subscriber QRZ Page

    Good info as always Julian. My only issue with your video is that it reminds me that I have more work to do. Keep it up and S/F
     
  15. KB1GMX

    KB1GMX Ham Member QRZ Page

    Been running of solar plus battery for nearly two decades. Started small and added to it.
    The result is for the last 15 years I run the station with no grid support. If the power goes
    out the local LED lighting keeps the dark away. The older smaller system is still in use
    providing a 12V bus as strictly emergency lighting thoughout the house. Gives me a
    small measure of energy independence and makes for no interrupts.

    If your staring the wider availability of newer batteries, panels, and charge controllers
    helps and makes for better system performance and lower cost.

    Since the Fridge and freezer can go for a day easily I have a genset (5.5KW) for that.

    His (Julian's) approach is sound. Monitoring systems and proper fusing makes sense
    for safety and insuring battery life.
     
    KI5UXW, HB9EPC and DO1FER like this.

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