steps for pv system design using pvsyst...
PV SYST-
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Mandatory • Orientation • System • Detailed losses
Optional • Horizon • Near Shading • Module Layout • Economic eval. • Miscellaneous tools
Location details 1. Coordinates: Latitude (N or S) & Longitude (E or W) Or Address 2. Pin code ,State & Country
Technical details 1.Type of system : On Grid /Off grid
2. PV Module technology : Mono/Poly/Thin-film 3.Module Capacity :Wp or make 4. Inverter : Type ,Capacity, Make
latitude(N or S) /Longitude(E or W) & Altitude(in Meter ) (0° = South Reference (+ Angle for Clock wise (- Angle for Anti clock wise
Don’t go any where, Just use this feature in PVSYST 6
Follow the steps How it looks like Choose new option
Databases
Click on geographical site
Go to Interactive Map section •Enter your Location
Database
Click on geographical site
Go to New option
Choose Interactive Map & Enter location /lat long on address bar then click on Import
Go to Geographical Coordinate section & Verify details ,choose Meteodata source i.e Meteonorm6 or NASA-SSE
Click on Import>in Monthly meteo section ,click on OK button Save the file
Fixed tilted Plane Loss by respected to optimum should be 0% Global radiation on collector plane
Tilt angle
Loss by respect to Optimum(%)
Global radiation on collector plane (kWh/m²)
29
-0.1
2224
30
-0.1
2226
31
0
2227
32
0
2227
33
0
2227
34
0
2227
35
-0.1
2226
• The shading losses should be in limit ≤1.40% Module Placement on tilted plane
If module mounting is Portrait : Enter the (L)length (in meter) If module mounting is landscape : Enter the (W)width (in meter) (check out these dimension from Module sheet )
Show Optimization shading losses limit up to 1.40% >Exit from orientation
Shading loss %> Change the Pitch value till the
string ,Central or micro based on economics(investment/Wp) , ease of installation and efficiency ,No of mppt , make ,% loading on inverter (oversized or under size )
Go to DC circuit: ohmic losses for the array > click on loss fraction at STC > Enter the value in between 1.10% -1.30% (these losses computed considering ohmic losses of array to String combiner box and String combiner boxes to Inverter) These loses occur due to resistance of DC wire in the Module strings to String combiner box/String Monitoring box and string combiner box to Inverter DC input.
Go to AC circuit: Inverter to injection point> click on loss fraction at STC > Enter the value in between 0.50% -0.80% (these losses occur at Inverter output to Point of injection of energy in to the grid (switch yard). The losses include Ohmic loss in Inverter output to LT panel ,LT panel , HT panel .)
*Transmission line losses are not included on this because it depends upon the point of injection /Joint metering panel as per PPA & respective state regulations. The voltage drop should be below 2.1%
