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A PV design framework




Virto.CORE is an advanced white-label PV design framework to build customized web applications for mounting system manufacturers and wholesale to automate the solar design and engineering process.

We support your solar business

Virto.CORE  is easy, user-friendly and does not require any prior 3D or CAD knowledge, making it a valuable calculator for solar businesses.

This web app allows to automate the design process extended with customized features such as static load calculations (ballast), Eurocode calculations (wind and snow loads), bill of materials and reporting.

This framework is typically used by mounting system manufacturers, wholesalers and suppliers. However, this PV solar design framework can also be used by any other company in the solar business that needs customized design tools to automate its processes.

 It’s currently applicable for both flat and sloped roofs – and soon also for ground mounted projects.

Why choose our solar PV design software

Support team

We ensure an effortless development of your project and customer care.


Save time and cost on in-house engineering by offering a calculator with instant results to your clients.


Reliable ballast and bill of materials calculations, extensively testen by our engineers.


Performant 3D editor with customized branding and unlimited project size.

Lead generation

Increase your brand recognition and turn generated leads into loyal clients.


Easy 3D modeling of buildings

Automated module layout design

Automatic Eurocode calculations

Ballast calculations from wind tunnel data

Verification of strength under static loads

Calculations of bill of materials

Insightful reports in PDF and CSV

Google Maps, PNG and PDF underlays

Synchronize with CRM and ERP

Shareable projects




3D Building Creations

Virto.CORE contains tools to easily create buildings in 3D automatically without any prior 3D knowledge.

It is possible to choose from a wide selection of options, such as flat / open gables, a shed or hip or any other obstacles.

After selecting the desired obstacles, these can be added to a rooftop with just a flew clicks.

Automated Eurocode calculations​

The Virto.CORE framework allows to automatically calculate wind speed, snow load zones and height above sea levels. These calculations are based on location and country specific terrain category maps. Additional information is integrated to assist the solar engineer selecting the applicable terrain category.


Automated module layout design

The framework offers more than 10K pre configured solar modules. In case the type of solar module you  need for your project is not available, it is possible to enter the data of a solar module yourself.

In addition, you can select substructures and configure dilatation rules.

After this, you can either generate your layout automatically or draw your own. We have integrated easy-to-use tools which allow you to adjust, move, delete or duplicate solar modules.

Strength verification for sloped roofs

Our software calculates the maximum forces for substructure and solar modules for uplift and downlift and will give warnings when safty limit is reached.


Ballast calculations from windtunnel data for flat roofs

The functionality to convert a wintunnel data result to ballast services can be integrated by a 3rd party software. This is also applicable to intelligent ballast spreading and grouping distribution for economical or maximum point load limitations.

Calculate Bill of Materials

After creating the project, it is possible to automatically calculate all the required items and quantities needed in a “bill of materials” report.

Generate report in pdf / csv

Virto.CORE provides customizable PDF reports containing all project details : environment setting, location, solar panel and mounting system included in the project, building plans, BOM, strength verification, ballast, point load -plans. 

Get started

Excited to start designing your solar project?

Want to know more about what Virto.CORE can do for you and your company?

 Contact us a for a custom quote or schedule a meeting for more info.

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