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Transcript of a practical system design software for SolarWorld partners · a practical system design software...
a practical system design software for SolarWorld partners
Lars Koerner – Senior Product Manager Off-Grid Systems- SolarWorld AG
BSW-Solar: Special Exhibition Rural Electrification / Intersolar 2011
SolarWorld: Locations and Sunmodules
Quick facts about SolarWorld:
• Employees: ~ 3,000
• Turnover 2010: ~ €1.3 bn
Goal of the development:
• A sizing program for every day use.
• It should fulfill the needs of system designers better than any other program on
the market.
• It should be…
– …easy to use for beginners, but flexible enough for experts,
– …include only essential functions, and
– …be as detailed as necessary not as possible.
Welcome screen
Battery Charge
controller AC-Loads
ηsystem = 95% * 85% * 90% = 73%
Inverter/Charger Solar
modules
DC-coupling: stand-alone / hybrid
Core calculation: system efficiency
Genset
• Main solar module derating factors:
• QUALITY!
• cell temperature
• soiling
• shading
5000 Wh/d
Energy demand
15,000 EURO
System cost
Efficiency evaluation functionality: Example for a health center in Mali
Efficient appliances
5000 Wh/d
1500 Wh/d
original efficient
Energy demand
15,000 EURO
4,500 EURO
original efficient
System cost
1,500
-70% -60% You just saved
9,000€ !!!
Efficiency evaluation functionality: Example for a health center in Mali
DC-coupled system sizing
System sizing is done in one single window only!
sample sizing for original, inefficient system
Sizing functionalities: Battery example
Modifiable database
Recommendations
for beginners
Freedom of choice
for experts
Automatic selection
Plausibility and
performance check
Quick overview
Extra features: Wire and fuse sizing
Extra features: Wire and fuse sizing
Select max. loss & calculated MPP loss
Automatic calculation of fuse size
Automatic calculation of wire size
Connection Box selection and calculation
Select distance to next connection
Electrical values for MPP on wire
List of needed wires
created automatically
Sample of customer reports
How about sizing one Sunny Island Multicluster Box 36 hybrid system
for 600 of those health centers with efficient appliances?
No Problem:
Sample monthly energy values
Summary of main features:
• Automatic download of global long-term weather data
• Sizing of all main current off-grid system types, incl. hybrid and Sunny Island systems
• Yield estimation for grid-connected systems
• Component database modifiable by user
• Commercial calculation sheet for offers
• Energy efficiency evaluation to optimize system size and cost
• Row spacing calculation, shading visualization and wire dimensioning
• Automatic generation of customer documents
• English / French / German (Spanish / Portuguese in preparation)
• Exclusively available for SolarWorld‘s off-grid customers!