Best Solar Design Software with a Free Trial

Compare the Top Solar Design Software with a Free Trial as of April 2026

What is Solar Design Software with a Free Trial?

Solar design software, also known as photovoltaic (PV) design software, helps engineers, architects, and solar installers plan and optimize solar energy systems by modeling the placement and performance of solar panels. It uses geographic, weather, and shading data to simulate energy production and system efficiency under various conditions. The software assists in creating detailed layouts, calculating system size, and estimating costs and return on investment. By enabling accurate design and visualization, it reduces errors and speeds up project approval and installation processes. Ultimately, solar design software helps maximize energy yield, lower costs, and support sustainable energy goals. Compare and read user reviews of the best Solar Design software with a Free Trial currently available using the table below. This list is updated regularly.

  • 1
    Pylon

    Pylon

    Pylon

    Create accurate proposals from anywhere in under 2 minutes using hi-res imagery, energy analysis and 3D shading tools in Pylon's intuitive design studio. Pylon is the only solar design software to give you high-resolution imagery in-app with no monthly fees. Identify dates of concern and track shading impact throughout the year using Pylon's award-winning 3D Solar Shading toolkit. Help your team better understand customer consumption patterns and maximize self-consumption using Pylon's load profile and interval data analysis. Analyze load profiles & interval data. Close more solar proposals with interactive Web & PDF proposals, native eSignatures and a payment processing gateway. Fully integrated solar CRM designed to integrate with your solar design software and convert proposals. Get 2-way SMS and email, communications with your team, lead management, and ready-made deal pipelines with Pylon Solar CRM.
    Starting Price: $4 per project
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  • 2
    Solargis

    Solargis

    Solargis

    Accurate estimation of solar energy potential is crucial in the pre-feasibility phase. Besides accurate results, it is also desired that the pre-feasibility study is done efficiently. Solargis prospecting tools, iMaps and pvPlanner, provide fast access to reliable solar yield estimates. The new Prospect tool further increases the accuracy of estimates and makes it easier to collaborate efficiently on the development of solar projects. Solargis data has the best accuracy and reliability amongst available solar databases. This has been confirmed by several independent studies. Solargis data has been validated at 1000+ locations globally. Validation statistics for 180+ non-confidential sites can be seen on our validation map. Popular simulation software such as PVsyst has advanced capabilities for system design and energy modeling. However, the default weather data in such tools is not the most reliable.
    Starting Price: €1,800 per year
  • 3
    ENACT Solar Software
    Our innovative platform speeds up sales and project execution, delivering high performing solar and energy storage systems. Features include: remote design using satellite images, proposals with detailed pricing and energy analytics, and seamless project management. Our app for end-customers is the first of it’s kind; the only platform that verifies predictive performance and savings. Features included solar and storage power-flows, utility bill savings, and performance analytics. Multiple workflows for team members and task assignment. Use high-resolution satellite images to create residential or commercial layouts. Close deals faster with beautiful and accurate proposals. Manage projects to rapid completion and impress customers.
    Starting Price: $199 per month
  • 4
    Virto.CAD

    Virto.CAD

    Virto Solar

    Virto.CAD is a powerful PV design plugin for AutoCAD and BricsCAD. It allows EPC, engineering firms and developers in the solar industry to crate detailed drawings and calculations for commercial rooftop and ground mounted projects. Virto.CAD is an all-in-one platform that optimizes your workflow and productivity. Using our software will save you more than 85% on engineering time and costs by automating module layouts, ballast calculations, bill of materials, irradiations simulations, yield simulations, string mapping, cable trays, trenches and routing management...
    Starting Price: 3.000$ - 4.500$
  • 5
    Solar Labs

    Solar Labs

    The Solar Labs

    Convert more customers with TSL enabled sales cycle. Create high performance PV layouts with ease. Save time and money with automation and remote analysis. Accurate 3D modeling portal, precise shading analysis, panel layout automation. Create accurate shapes using polygons. Simply create the structure with the polygon tool from the models. Dimension tool helps for precision measurement. Click and drag the polygons and tap on tab to enter the dimensions. Subarray properties with tilt and azimuth. Sub-arrays have a group of panels in that area and each sub-array can be edited individually for better rooftop adaptivity. Vary the mount height of the structure to suit your requirement. Drag and drop tables. Say it to add/delete or move the panels, it is easier in the solarlabs. Click the table and you can move to any location on the roof. Visually design the system by having their 3D view handy.
    Starting Price: $39 per month
  • 6
    HelioScope

    HelioScope

    Folsom Labs

    A web-based sales and design tool for solar professionals with the power to completely reshape your proposal generation process. From its robust 3D design engine and bankable energy yield simulator to its detailed financial calculator and drag-and-drop proposal editor; HelioScope makes responding to customer requests fast, easy, and bankable. We provide 3D design, rapid proposals, bankable simulations, unlimited designs, live support, single line diagrams, automatic cad export, one-click sharing, up to 5mw systems, 45,000 component library and global weather coverage and pan file support.
    Starting Price: $79 per month
  • 7
    PV*SOL

    PV*SOL

    PV*SOL

    PV*SOL offers the most detailed configuration and shade analysis for PV systems. Calculate solar output, panel sizing and economic forecasting for your system. Make better design decisions based on intelligent simulation models of your pv solar system. Help clients and partners understand the specifics of their solar installation with appealing professional reports. Incorporate financial incentives and complex tariff structures resulting in better financial planning. Get the best results with our flagship product using 3D technology for precise and realistic PV system design. Our industry-leading software is the ideal tool for fast and reliable PV system design. Get a sneak-peek into our solar calculation and PV power output software with the free online version of PV*SOL.
    Starting Price: €895 one-time payment
  • 8
    ARKA 360

    ARKA 360

    ARKA 360

    We made this end-to-end solar platform after speaking to hundreds of solar installers to make sure our software adapts to your workflow and improves that, and we're not something you have to massively change the way you work to use our software effectively. Take your business digital, reduce human errors, save on costs, and serve your customers better. From capturing leads to filling in site survey information and a lot more solar features, this is not the average CRM. Design & CRM in one software made especially for salespeople to design by themselves. Salespeople can do just about everything helped by AI and the easy-to-use design features. Send prospects a beautiful proposal with accurate design, solar and battery energy analysis, and financials within minutes. ARKA 360’s powerful design studio is made for technical salespeople and engineers with full 3D design, modeling to the inch, and advanced 3D analysis.
    Starting Price: $ 1,699 per year
  • 9
    solarVis

    solarVis

    solarVis

    solarVis is an end-to-end platform built for the solar and sustainable energy sector that helps companies manage the entire lifecycle of solar sales and project operations in a single digital environment. It combines tools for lead generation, project design, feasibility analysis, proposal creation, customer relationship management, and installation project tracking, allowing solar businesses to streamline their workflows from initial customer acquisition to final installation. It includes modules such as a 3D rooftop design tool for creating accurate solar layouts, a multi-scenario feasibility analysis system that evaluates technical and financial viability, and customizable proposal generators that produce detailed project offers for customers. It also provides a material database and bill of materials management so teams can calculate costs, configure equipment packages, and track components used in solar installations.
    Starting Price: €99 per month
  • 10
    PVcase

    PVcase

    PVcase

    PVcase Ground Mount is AutoCAD-based solar design software for utility-scale solar power plants. It enables solar engineers to reduce project costs, boost reliability and improve solar plant performance. Reduce project uncertainty and remove design errors with realistic, terrain-based PV layouts. CAPEX can make or break great solar designs. Get a clear breakdown of your project costs early on. Optimize your design and evaluate potential near-shading challenges. Own your electrical design by streamlining string mapping, device placement and cabling. Download and easily share cable runs, piling lengths, and other cost estimations with your team. Export your PV design in a bespoke format, co-designed with PVsyst.
  • 11
    Solar Pro

    Solar Pro

    Laplace Systems

    Simulation including the shadow influence by surrounding buildings and objects allows users to check optimal settings and module designs before system installation. The software calculates the I-V curve of solar modules accurately and quickly based on the electric characteristics of each manufacturer's product. The software calculates the amount of generated electricity based on the latitudes, longitudes, and weather conditions of the installation site. This leads to precise simulation results. The software determines the necessary components for installing PV system automatically based on the settings. Supports power generation simulation using half-cell modules. In addition, half-cell solar cells can be registered in the solar cell module database.
  • 12
    GeoT*SOL

    GeoT*SOL

    Valentin Software

    With GeoT*SOL you can simulate the heat pump system to the minute in order to determine annual performance figures (COP) and contribution margins. The systems can have other heat generators such as gas condensing boilers and solar systems. Movovalent, monoenergetic and bivalent modes of operation can be selected for operation. The annual performance factor according to VDI 4650 is an important factor for comparing plants according to their efficiency. It forms the basis for many funding measures and approval procedures. GeoT*SOL calculates the profitability according to the recommendation of the Federal Association of the Solar Industry (BSW) taking into account the funding: comparison of the costs of the heat pump system with a comparison system; capital value and production costs (heat price); modified internal rate of return (MIRR), profit taking into account the reinvestment.
  • 13
    SolarDesignTool

    SolarDesignTool

    SolarDesignTool

    Create a preliminary design by specifying the module and inverter configuration and the layout. Upgrade the design to a permit-ready design by completing a quick 4-step wizard. Define the installation site using aerial imagery or an imported 3D model from EagleView or RoofOrders. With SolarDesignTool, you can create a PV system design and generate a solar permit package in as little as 15 minutes. A permit package includes the following pages: project summary, site plan, single-line diagram, PV safety labels, attachment plan(s), attachment details for supported racking systems, fire safety plan, equipment datasheets, and certifications. After completing a PV system design, generating a solar permit package is as simple as clicking a single button. A PV permit package for a typical residential sloped rooftop using a popular racking system will include all of the pages listed above.
    Starting Price: $50 per user per month
  • 14
    Virto.MAX

    Virto.MAX

    Virto.solar

    We wish to stimulate the transition to clean and green energy. Therefore we want to provide user-friendly PV design software solutions to solar installers, engineers, wholesalers and manufacturers. This way they can create solar parks and projects both fast and efficiently. With this purpose in mind we develop highly advanced and accurate software tools. Furthermore, we believe it is important that our software can be incorporated quickly. It is our goal to create an ecosystem for engineers in the PV industry. Our PV design software speeds up the engineering process of solar PV projects by automating repetitive tasks. For instance, our software automatically generates 3D models. This means there’s no need to draw 3D models yourself and lose precious time. As a result, you’ll achieve fast and accurate drawings for preliminary designs of a construction site. Our Story: Kim Eyckmans started his engineering career at one of the top solar EPC companies in the BENELUX.
  • 15
    archelios PRO

    archelios PRO

    Trace Software International

    archelios PRO is a simulation and design software dedicated to photovoltaic projects, offering an all-in-one solution for industry professionals. It allows you to design, size, simulate, and manage photovoltaic installations in a precise and optimised manner. With its cutting-edge technology, Archelios PRO helps you maximise the energy efficiency and profitability of your solar projects, while meeting regulatory and technical requirements. Additionally, the software includes powerful tools for managing self-consumption, ensuring that energy produced is efficiently utilised within the building or facility. archelios PRO benefits from responsive technical support and regular updates to its features, ensuring that you stay at the forefront of innovation in a constantly evolving sector.
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