Requirements for Solar backup power for data centre

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Cuteajax
Cuteajax Registered Users Posts: 4 ✭
in General Solar Power Topics #1
I want to implement a 3-phase off-grid solar inverter and battery backup system that will run a 3hp Air Conditioner and a 2hp data center for 15 hours after power outage per day. I want to use multiple inverters connected together. The electric power scheme for my country is 230V 50Hz. I also prefer a 48 volts systems but I'm open to better suggestions. What components do I need?
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  • mike95490
    mike95490 Solar Expert Posts: 9,583 ✭✭✭✭✭
    #2
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    What will be running the computers that need the air cond ?

    This is going to need a large professional solution, and a solid plan,  not a homeowner rig scaled up. 

    48 V is not enough , you are looking at about 300VDC to run large inverters.

    3hp & 2hp, adding losses and power factor, is going to be 10Kw roughly, plus whatever the computers use and the losses in the power converters for them.
     
    Unless your power goes off only on sunny days, you will need a large diesel generator to run things if it's stormy or wind has damaged your solar panels.


    Powerfab top of pole PV mount | Listeroid 6/1 w/st5 gen head | XW6048 inverter/chgr | Iota 48V/15A charger | Morningstar 60A MPPT | 48V, 800A NiFe Battery (in series)| 15, Evergreen 205w "12V" PV array on pole | Midnight ePanel | Grundfos 10 SO5-9 with 3 wire Franklin Electric motor (1/2hp 240V 1ph ) on a timer for 3 hr noontime run - Runs off PV ||
    || Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
    || VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A

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  • Dave Angelini
    Dave Angelini Solar Expert Posts: 6,746 ✭✭✭✭✭✭
    #3
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    XWP is now in clusters for 3 phase and one cluster of 3 should start a 3 HP motor. Especially if it is a soft start VFD. Some big batteries from Rolls Surrette or similar. Should not be that hard to do this and adding solar would be an option or just use a genset if the grid is not back. Good Luck!

    https://solar.schneider-electric.com/product/xw-pro-solar-hybrid-inverter/
    "we go where power lines don't" Sierra Nevada mountain area
       htps://offgridsolar1.com/
    E-mail offgridsolar@sti.net

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