Cell to Module Analysis by Fraunhofer ISE
SmartCalc.CTM is a tool for the fast and precise calculation of cell-to-module losses and gains for solar modules.
The combination of sophisticated scientific models and measured data provide the basis for CTM loss analysis of a wide range of module concepts and materials.
An intuitive graphical user interface allows for quick and easy virtual protoytyping.
flexible virtual prototyping
free choice of module materials
front or back glasses of variable thickness and optical properties
encapsulation materials with different transmittance and UV-cut-offs
opaque or transparent backsheets with different reflectance
wide range of solar cell technologies
variable cell sizes and geometries in full or pseudo square format
front-back or back-contact (MWT, IBC)
variable geometry and position of busbars or pads
flexible module layout
cell and string spacing
adjustable module border width
number of cells and strings
several interconnection possibilities
rectangular ribbons or round wire interconnection
soldering or electrical conductive adhesives
interconnection with variable number of ribbons
IBC interconnection, conductive backsheets and shingled cells
Detailed cell-to-module analysis
Calculation of 15 loss and gain factors based on material properties and module setup
|k1||Module margin||Inactive area at the module margin|
|k2||Cell spacing||Inactive area between cells and strings|
|k3||Cover reflection||Reflection of light at the front interface of the module|
|k4||Cover absorption||Absorption of light in the front cover|
|k5||Cover/encapsulant reflection||Reflection of light at the interface between front cover and encapsulation material|
|k6||Encapsulant absorption||Absorption of light in the encapsulation material|
|k7||Interconnection shading||Shading of the cell by interconnector ribbons|
|k8||Cell/encapsulant coupling||Reduced reflection of the cell due to encapsulation (refractive index matching)|
|k9||Finger coupling||Reflection of light from the cell metallization on the active cell area|
|k10||Interconnector coupling||Reflection of light from the interconnector ribbons on the active cell area|
|k11||Cover coupling||Internal reflection of light at the (rear) cover of the module in the cell spacing area|
|k12||Cell interconnection||Electrical loss in cell interconnector ribbons|
|k13||String interconnection||Electrical loss in cell string interconnectors|
|k14||Electrical mismatch||Deviations in electrical cell parameters and from cell binning|
|k15||Junction box and cabling||Electrical losses in cables and diodes of the junction box|
Our open data concept
Enter and edit dataUsers can enter and edit data directly in the SmartCalc.CTM user interface. Single parameters can be changed and spectral information loaded from comma separated text files.
Data generated by the user, data supplied by the material vendor as well as material characterization results from Fraunhofer ISE or the user itself can be used.
Create own data filesEditing and saving materials is easily possible. Fraunhofer ISE or additional licenses are not required to edit, save and load material data files.
Files containing material or module data can be loaded. Use previously saved material files as well as data files provided by your material supplier or Fraunhofer ISE.
Save and load data filesData files can be created by saving from the SmartCalc.CTM user interface or by using a text-editor.
No proprietary program or licenses are necessary to create or edit the XML-data files.
Graphical User Interface
SmartCalc.CTM is equipped with a user-friendly interface to increase productivity. Data input, result presentation and detailed analysis are easy with SmartCalc.CTM.
Configure your photovoltaic module via the user interface or load a predefined configurations or data files.
Change cell specifications, encapsulation, backsheet or other materials easily and analyze the impact on module efficiency.
Display results for individual factors in intuitive diagrams for quick analysis.
Track your optimization and analyze existing modules or evaluate new concepts, materials or components.
harvest performance potentials
increase module power
easier economic assessment
evaluate new concepts, materials and components
Licensing and services
We have different software packages, pricing plans and support options available. Please contact us to get an individual offer that fits your needs best.
A demo version of SmartCalc.CTM is coming soon. Register below to receive your download link on the release date.
You are developing new materials and would like to validate your specifications? Or you would like our support with customized interconnection concepts? We are here to help you! Contact us for a full list of our service offers or send us your inquiry.
Get your demo version of SmartCalc.CTM
Register your e-mail address and receive a download link for the SmartCalc.CTM demo version as soon as it becomes available.