About mini grid of 10 kW capacity

kcbibek310kcbibek310 Posts: 21Registered Users ✭✭
We are thinking of designing solar mini grid for rural areas of capacity 10 KW. Can anyone help me with this by providing reading material on this, so that we can design a reliable system.

Comments

  • BB.BB. Posts: 27,887Super Moderators, Administrators admin
    We can walk you through the basics of such a design (paper designs are always a good place to start). For example we would first ask about your loads and location...

    10 kWatt load is a peak load--Need to know how many hours per day (sort of like miles per hour vs miles driven per day). If you have a well pump that needs to run 1 hour per day... That is much different than a home which may take power for 5 hours or day, or a business that runs 8-10 hours per day.

    And, where (roughly) will the system be installed. Solar panels only generate electricity in full sun... Seasonal variations, shading by trees and mountains, or even overhead power lines can "kill" solar panel output power. There are various websites you can look up for "hours of sun" per day (other units are common too):
    http://www.solarelectricityhandbook.com/solar-irradiance.html

    Kathmandu
    Average Solar Insolation figures

    Measured in kWh/m2/day onto a solar panel set at a 62° angle:
    (For best year-round performance)
    Jan Feb Mar Apr May Jun
    5.81
     
    6.53
     
    6.89
     
    6.66
     
    6.12
     
    5.16
     
    Jul Aug Sep Oct Nov Dec
    4.40
     
    4.60
     
    4.69
     
    6.15
     
    6.32
     
    5.94
     
    Also, selection of equipment depends on what is "local/available" to you...

    We do have some information about books and stuff here:

    http://forum.solar-electric.com/discussion/4426/working-thread-for-solar-beginner-post-faq/p1

    For smaller systems, the math and system design is pretty basic (like wiring up a boat with 12 volt power, 12 volt loads, AC inverter, etc.).

    For large system (10kWatt is not a small system), getting local professional help/engineering is probably going to be very useful.

    -Bill
    Near San Francisco California: 3.5kWatt Grid Tied Solar power system+small backup genset
  • Dave AngeliniDave Angelini Posts: 4,015Solar Expert ✭✭✭✭
    Both Outback and Schneider Electric also have some excellent info on mini grid or micro-grid as it is now being called.

    http://www.outbackpower.com/applications/off-grid
    https://solar.schneider-electric.com/solution/residential-off-grid-solar/
    "we go where power lines don't" Sierra Mountains near Mariposa/Yosemite CA
     http://members.sti.net/offgridsolar/
    E-mail [email protected]

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