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SIMEA Stato dell’arte energetica degli edifici
1.3.11. SolarDesignTool
100
Doc.No 20100610.SIMEA.MR.03
Versione 1
SolarDesignTool is a Web site that allows
people to design solar electric grid-tied systems online.
It offers two tools for creating a photovoltaic (PV)
system design.
The first prompts the user to supply basic design and site parameters and then generates a list of all
possible system configurations for those parameters. The user can then select a few configurations, compare
them, and then save one or more to a project.
The second allows the user to build a system design by specifying the details of each array
configuration. For example, to create a system with two inverters, the user would first provide the
temperature range and utility voltage. The user would then add an inverter and array, which involves
selecting an inverter, module, and string configuration. The user would then repeat the process for the second
inverter. The tool also allows the user to define any number of roof faces and requires that the array fit within
those defined areas.
1.3.11.1. Validation/Testing
The tool performs no energy production estimates or simulations at this time.
1.3.11.2. Expertise Required
This tool is geared toward novices and experts in the industry. The user should have some basic
knowledge about designing grid-tied systems.
1.3.11.3. Users
1000, mostly in the United States.
1.3.11.4. Audience
PV system designers, installers, integrators, and distributors and retailers of PV equipment.
1.3.11.5. Input
• Utility voltage
• Sizing method (desired power output, desired output and requirement that the array fit within defined
areas, largest system that will fit on roof)
• Record low temperature and average high temperature of project site (in Celsius or Fahrenheit)
• Output range (in Watts or kW)
• Dimensions of roof faces (metric or English)
• Mounting method (flush roof, tilted array, pole/ground mount)
1.3.11.6. Output
List of all possible systems for supplied inputs. The user can select a few systems and compare the
specs of those systems in a comparison table. Users with an Expert account can then save the system and
view a summary report that includes:
• Record low temperature and average high temperature of installation site
• STC DC output of array
• PTC DC output of array
• CEC output of array