Best Free Solar Software of 2025

An accurate assessment of solar energy potential is essential during the pre-feasibility stage of a project. In addition to needing reliable results, it is also important for the pre-feasibility analysis to be conducted efficiently. Tools like Solargis's iMaps and pvPlanner enable quick access to dependable solar yield estimates. The latest Prospect tool enhances the precision of these estimates and facilitates smoother collaboration during the solar project development process. Among the various solar databases, Solargis data is recognized for its superior accuracy and reliability, as supported by multiple independent studies. This data has been validated across more than 1000 locations worldwide, with validation statistics for over 180 non-confidential sites available on the validation map. While popular simulation software such as PVsyst offers sophisticated functionalities for system design and energy modeling, it is important to note that the default weather data provided in these tools may lack reliability. Therefore, utilizing validated solar data is key to optimizing project outcomes.

The RETScreen® Clean Energy Management Software platform facilitates the planning, execution, monitoring, and reporting of low-carbon initiatives. The more advanced version, RETScreen Expert, is accessible in Viewer mode at no cost to users. In partnership with governmental and multilateral organizations, we co-develop and secure funding for enhanced iterations of the RETScreen® platform. RETScreen Expert, which is a sophisticated iteration of the software, offers tools for benchmarking, feasibility studies, performance evaluation, and portfolio analysis across diverse facility types, such as commercial, institutional, residential, industrial, and power generation, all integrated into a single robust platform. Our innovation lab is dedicated to keeping the RETScreen software at the forefront of the clean energy technology transition, ensuring ongoing enhancements to address the intricate requirements of our extensive and expanding global user base. This commitment to innovation and user satisfaction drives our continuous development efforts in clean energy management solutions.

PVSketch is a user-friendly web application that simplifies the process of developing solar projects. Its approachable interface allows sales professionals to utilize a precise layout tool without needing extensive training. This innovative tool enhances the visualization of solar energy solutions while providing reliable energy modeling capabilities. As a component of the PVComplete platform, PVSketch enables seamless collaboration among solar developers, installers, and engineers, promoting both efficiency and precision in their work. Sales professionals can swiftly initiate a project online with PVSketch, subsequently transferring it to PVCAD, an AutoCAD plugin, for in-depth engineering plans. By making solar design straightforward, PVSketch allows users to create comprehensive solar projects with just five clicks. The intuitive drawing tools ensure that accurate solar designs are within reach for anyone. With just a single click, users can produce a complete layout, but for those who wish to take it further, the platform offers the ability to refine their designs into more complex structures, enhancing the overall project quality. Ultimately, PVSketch not only streamlines the initial phases of solar project development but also empowers users to create sophisticated and tailored solutions.

SunDAT offers a web-based solution for designing utility-scale and commercial solar photovoltaic systems. Our cutting-edge, patented technology is designed to optimize the Ground Coverage Ratio (GCR) and maximize energy yields, even on challenging terrains. The system is adept at managing complex boundaries and obstacles, simplifying the design process significantly. By automating workflows, SunDAT enhances the overall efficiency of solar design, making it easier to pinpoint areas with steep slopes or identify sections within a solar array that require grading or should be avoided altogether. Additionally, users can create visual heatmaps, export them to PVsyst, and conduct pile length calculations effortlessly. The software supports exporting project data in various formats such as PDF, DXF, and DAE, facilitating seamless integration with programs like AutoCAD and PVsyst for further design refinement and analysis. SunDAT Web software is tailored to optimize both large-scale utility projects and commercial PV designs, accommodating everything from a substantial 150MW utility-scale ground-mount system to a more modest 2 MW commercial rooftop installation. With SunDAT, you can ensure your solar designs are not only efficient but also effective in harnessing renewable energy.

Effortlessly create residential solar designs that are ready for permits at no cost. You can export a complete permit package for as little as $49 in just a matter of minutes. With the push of a button, generate a solar permit package that is ready for submission. Each interaction is crafted for speed and ease, making it incredibly user-friendly. Lyra is designed so intuitively that seasoned solar professionals can start using it immediately without needing any prior training. You can create exactly what is necessary for a permit, whether it's a basic preliminary design or a detailed, component-level permit-ready design. With just a click, transform your design into a permit package. It's truly that straightforward. The Lyra solar design tool is completely free to use, requiring only your email address to get started on your first design. We also collaborate with solar design software companies to enhance their services. If your product lacks permit packaging capabilities, reach out to us so we can explore potential collaboration opportunities. By joining forces, we can expand our reach and improve the resources available to solar professionals everywhere.

Consolidate information from diverse essential sources, including SCADA systems and power predictions, into a single software platform, independent of hardware providers or external services. Stay proactive in identifying both current and potential anomalies through sophisticated performance monitoring and AI-driven predictive analytics. Maximize the value derived from your assets with software tailored to assess underperformance, identify challenges, and uncover optimization opportunities that can lead to significant cost reductions. Enhance overall productivity and energy output across the organization with a flexible system that incorporates industry best practices, ensuring that teams not only meet but surpass their goals. This comprehensive approach enables organizations to maintain a competitive edge and respond effectively to dynamic market conditions.

Power Factors’ Drive platform serves as a sophisticated cloud-based solution for managing the performance of renewable energy assets. This innovative software provides a comprehensive suite of tools designed for owners, operators, and asset managers, enabling them to effectively monitor, manage, and enhance the performance of their renewable assets, encompassing everything from operational oversight to detailed reporting and technical management. Building upon the data framework of the Drive platform, Drive Pro offers enhanced analytic capabilities that foster collaboration among stakeholders at every stage of asset performance management, which includes elements such as plant design, predictive modeling, and operations and maintenance (O&M). To complement these functionalities, our asset-focused enterprise asset management (EAM) system, Drive O&M, integrates flawlessly with the Drive platform, ensuring that operational events, maintenance records, and compliance obligations for each asset are interconnected. Furthermore, the incorporation of automated workflows and classifications for failures significantly contributes to maximizing the asset's lifespan while also optimizing O&M processes. This holistic approach not only enhances the efficiency of asset management but also supports sustainable energy initiatives.

OpusFlow is an all-in-one ERP system for installation companies. OpusFlow is well suited for a wide range of installations such as solar panels, heat pumps, charging stations and more. OpusFlow streamlines operations and captures all business processes so that there is only one system to work in. OpusFlow is a very attractive price point without compromising on performance. The package has the following modules: CRM Customer portal Calculation & Quotation Invoicing Purchase & Stock Planning Dashboarding Project Management Forms Documents Asset management Workflow automations HR PV designer / SolarFlow

SolarEdge Designer is a complimentary online tool designed for solar industry professionals to significantly reduce the costs associated with PV design while creating effective proposals for clients. This robust platform allows users to plan, construct, and verify both residential and commercial SolarEdge systems from the initial concept all the way through to installation, providing a crucial advantage in closing sales. It features a streamlined design process that incorporates numerous automated functions, including stringing, rapid design validation, detection of multiple obstacles, and bulk mapping of Power Optimizer barcodes. Additionally, users can effortlessly export their site layouts to the SolarEdge Monitoring Platform. Create persuasive proposals for customers with in-depth reports and precise energy simulations that have been independently assessed by DNV GL. The detailed financial analysis tools enable accurate predictions of savings on electricity bills and return on investment for system owners. To further captivate potential customers, the platform offers a visually engaging 3D simulation of their project site, enhancing the overall presentation and appeal of the proposals. By utilizing this innovative tool, solar professionals can elevate their sales strategies and improve client satisfaction significantly.

Keep your clients informed without the stress. Bodhi consolidates all communications with your customers into one easy-to-navigate inbox, ensuring they receive automatic updates throughout each phase of their project. This streamlined approach not only helps in minimizing cancellations but also fosters organic growth through improved reviews and additional referrals. By utilizing the latest research on solar adoption, Bodhi offers a customized interface for managing feedback and recommendations. Furthermore, it allows for effortless monitoring of your solar fleet all in one place, providing insights across various monitoring platforms to keep customers engaged and notify you of any performance concerns without delay. With Bodhi, you have the necessary tools to optimize your solar operations and surpass customer expectations consistently. It also centralizes messages from text, email, and in-app communications, ensuring that no customer inquiry goes unanswered. Additionally, Bodhi seamlessly integrates with your CRM and project management systems, providing clients with a tailored project tracker and automated updates to enhance their experience. This comprehensive approach not only simplifies operations but also strengthens customer relationships, paving the way for long-term success.

Solar companies can enhance their sales workflow through a comprehensive CRM solution that encompasses every stage from lead management to financial assessments, proposal creation, e-signing, and invoicing. With Solar Logics, users benefit from an integrated solar panel system sizing and cost estimation tool. Recognizing the diversity in calculation methods among installers, Solar Logics enables customization by allowing users to input their specific technical, geographic, and construction parameters into the calculator. Regardless of the number of lenders involved or the locations of clients, this platform facilitates the entry of loan information and incentive details, which are utilized to project both immediate and long-term savings in the generated proposals. Furthermore, Solar Logics crafts detailed solar energy system proposals that include visual aids such as charts and tables, showcasing the electricity expenses prior to and following solar setup, as well as savings, incentives, the anticipated payback duration, and a thorough breakdown of the loan repayment plan. In this way, the solution not only simplifies the process but also enhances the clarity and professionalism of presentations to clients.

Solar Commission Pro is an effective sales tool that was designed for solar sales professionals. This all-in one platform streamlines commissions management with features such as: Calculate commissions with precision and custom splits. Deal tracking and payment status Monitoring Multiple commission plan management Adder system with flat-rate and per watt additions Complete Customer Information Management Mobile-friendly design for field accessibility Solar sales representatives, contractors and teams that want to manage their deals efficiently and eliminate headaches with commission calculations will love this tool. Securely access your commission data from any device.