Compare the Top Free Solar Software as of January 2026

What is Free Solar Software?

Solar software enables solar companies to manage all aspects of their solar business, and offers features such as solar design, solar sales, solar maintenance, solar operations, solar monitoring, and more. Compare and read user reviews of the best Free Solar software currently available using the table below. This list is updated regularly.

  • 1
    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
  • 2
    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
  • 3
    RETScreen

    RETScreen

    RETScreen International

    The RETScreen® Clean Energy Management Software platform enables low-carbon planning, implementation, monitoring and reporting. RETScreen Expert, an advanced premium version of the software, is available in Viewer mode completely free-of-charge. We collaborate with government and multilateral organizations to co-fund and develop advanced versions of the RETScreen® Clean Energy Management Software platform. RETScreen Expert, the intelligent version of the software, incorporates benchmark, feasibility, performance and portfolio analysis for various types of facilities, including commercial, institutional, residential, industrial and power generation, all within one comprehensive platform. The focus of our innovation lab is to ensure that the RETScreen software is always at the leading edge of the clean energy technology transition, and that we continuously improve our platform to meet the complex needs of our large and rapidly growing global user community.
    Starting Price: $869 per year
  • 4
    PVSketch

    PVSketch

    PVComplete

    PVSketch is an intuitive web app designed to streamline solar project development. A friendly interface allows sales professionals easy access to a precision layout tool with little or no training. PVSketch helps visualize solar energy solutions and creates accurate energy modeling. PVSketch is part of the PVComplete platform. PVComplete allows solar developers, installers and engineers to work together on a single, versatile platform combining efficiency and accuracy. Sales professionals can begin a project quickly online with PVSketch and then transfer the project to PVCAD, our AutoCAD plugin, for a detailed engineering plan. PVSketch makes solar design simple. As little as five clicks and you can create a solar project packed with valuable information. Simple and instinctive drawing tools make accurate solar design accessible to any individual. While a single click can generate an entire layout if you dig deeper you can refine your solar design to create sophisticated designs.
    Starting Price: $50 per month
  • 5
    SunDAT

    SunDAT

    SunDAT

    Web-based PV design for utility-scale and commercial solar. Our innovative, patented system for determining layout optimizes Ground Coverage Ratio (GCR) and helps engineer enhanced yields on rough terrain. Handle complex boundaries and obstructions with ease. Automate workflows and increase the efficiency of your design process with SunDAT. This feature allows you to identify areas that are beyond a certain slope tolerance or flag areas within a solar array layout that need to be graded or avoided. You can also visualize heatmaps, export them to PVsyst, and perform pile length calculations. SunDAT enables you to export your project data in multiple formats like PDF, DXF and DAE. This allows your design to be imported to programs like AutoCAD and PVsyst for continued design and analysis. SunDAT Web software optimizes large-scale utility and commercial PV design. Whether you are designing a 150MW utility-scale ground mount or a 2 MW commercial rooftop solar system, SunDAT will do it.
    Starting Price: $2,000 per year
  • 6
    Lyra Solar

    Lyra Solar

    Lyra Solar

    Quickly and easily create permit-ready residential solar designs for free. Export ready-to-submit permit packages for as low as $49 in just a few minutes. Generate a ready-to-submit solar permit package at the click of a button. Every interaction is designed to be fast and simple. Lyra is so easy to use that any experienced solar professional can jump in without any training. Design just what you need for a permit, from a simple preliminary design to a down-to-the-component level permit-ready design. Generate a permit package from the design with the click of a button. Seriously, it's that easy. The Lyra solar design tool is free to use. All we need is your email address to get you set up and ready to knock out your first design. We work with solar design software companies to augment their offerings. If you lack permit packaging in your product offering, contact us to discuss how we can work together.
    Starting Price: $49 one-time payment
  • 7
    Greenbyte

    Greenbyte

    Greenbyte

    Aggregate data from a wide variety of critical sources—from SCADA data to power forecasts—regardless of the hardware manufacturer or 3rd party service, in a central software platform. Stay ahead of the game and detect anomalies early—both existing and impending—with advanced performance monitoring and AI-based predictive analytics. Extract more value from your assets with software designed to help you analyze underperformance, pinpoint issues and reveal opportunities for optimization and cost savings. Amp up both organization-wide productivity and energy production with a highly customizable system, built on industry-leading best practices, designed to help teams exceed expectations.
    Starting Price: Free
  • 8
    Power Factors Drive

    Power Factors Drive

    Power Factors

    Power Factors’ Drive platform is a cloud-based asset performance management (APM) software solution for renewable assets. Drive empowers owners, operators, and asset managers with tools to monitor, manage and optimize the performance of renewable energy assets — from operations to reporting to technical asset management. Drive Pro builds on the data foundation established by the Drive platform to deliver advanced analytic insights that connect stakeholders across all aspects of asset performance management — from plant design to predictive modeling to O&M. Our asset-centric enterprise asset management (EAM) system, Drive O&M, seamlessly integrates with the Drive platform, connecting operational events, maintenance history, and compliance/contractual requirements for each asset. Automated workflows and failure categorizations help increase asset lifetime value while streamlining O&M processes.
    Starting Price: Free
  • 9
    OpusFlow

    OpusFlow

    OpusFlow

    OpusFlow is ERP total package developed for the installation industry. OpusFlow includes all the modules that an installation company needs to streamline its business operations from A to Z. Distinctive from other providers are the industry-specific modules that generic solutions often lack, such as being able to digitally register solar panels. All business processes are unified in OpusFlow. Save valuable time, always all information in one place, all business processes are integrated and work faster without errors. OpusFlow's ERP includes the following modules: CRM Customer portal Calculation & Quotation Invoicing Purchase & Stock Planning Dashboarding Project Management Forms Documents Asset management Workflow automations HR
    Starting Price: $89 per user per month
  • 10
    Bodhi

    Bodhi

    Bodhi

    Keep customers updated without all the headaches. Bodhi brings all your customer communications into one inbox and can automatically update them through every stage of the project. Reduce cancellations and grow through better reviews & more referrals. Bodhi helps you reduce cancellations and grow organically through a personalized review & referral interface based on the latest solar adoption research. Easily and proactively monitor your solar fleet on a single platform. Bodhi monitors your solar fleet across your different monitoring platforms to keep your customers engaged and automatically alert you of any performance issues. Bodhi has the resources you need to enhance your solar operations and exceed customer expectations. Bodhi centralizes communications across text, email, and in-app so you never miss a customer message. Bodhi integrates with your CRM and project management tool in order to keep your customers updated with a personalized project tracker and automated updates.
    Starting Price: $395 per month
  • 11
    SolarEdge Designer
    SolarEdge Designer is a free web-based platform that helps solar professionals like yourself lower PV design costs and generate winning customer proposals. plan, build and validate your SolarEdge residential and commercial systems from inception to installation with this powerful selling tool that can help you close more deals. Streamlined design process featuring many automatic procedures such as stringing, instant design validation, multiple obstacle detection and bulk Power Optimizer barcode mapping. Seamless export of the site layout to the SolarEdge Monitoring Platform. Offer compelling customer proposals with comprehensive reports and accurate energy simulations, independently evaluated by DNV GL. Leverage detailed financial analysis capabilities to accurately forecast system owners’ electricity bill savings and ROI. Impress your customers with a visually attractive 3D simulation of their site.
  • 12
    SolarLogics

    SolarLogics

    Logics CRM

    CRM for solar companies. Streamline your sales process from lead management and technical and financial assessment to proposal preparation, e-signing, and billing. Solar Logics comes with a built-in solar panel system size and cost calculator. We understand that different solar installers use different methods for calculating the system size. That's why Solar Logics allows you to enter your own technical, geographical, and constructional constraints into the calculator. No matter how many lenders you work with and what states your clients are at, Solar Logics allows you to enter loan and incentive details and uses those figures to estimate the short and long-term savings in the proposal document. Solar Logics generates solar energy system proposals based on the results of the calculators. Your proposal includes the charts and tables indicating electricity bill before and after solar installation, savings and incentives, projected payback period, and loan repayment plan breakdown.
    Starting Price: $45.00/month/user
  • 13
    Solar Commission Calculator
    Solar Commission Pro is a powerful sales tool designed specifically for solar sales professionals. This all-in-one platform streamlines commission management with features including: Precise commission calculator with custom splits and redline pricing Deal tracking and payment status monitoring Multiple commission plan management Comprehensive adder system for both flat-rate and per-watt additions Complete customer information management Mobile-friendly design for field access Perfect for solar sales representatives, contractors, and teams who want to eliminate commission calculation headaches and efficiently manage their deals. Access your commission data securely from any device.
    Starting Price: $10
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