OpenSolar

iPhone + Android

9.3No. 1 of 26
in Solar Installation Software

Recognised40% of the score81
Phone app26% of the score100
Documented20% of the score96
Free plan14% of the score100

Free plan: Yes
Runs on: Android, api, iPhone, Mac, Web

Summary

OpenSolar is a platform for solar professionals to design, sell, and manage projects, with a free OpenSolar Pro plan. Its Ada AI can produce multiple solar system designs based on design preferences. Users can make customizable, branded proposals with flexible payments and real-time updates, then manage branded invoices, payment milestones, reminders, online payments, and e-signatures. The design experience supports equipment orders, while a hardware catalogue can generate a bill of materials. An API connects with CRM, accounting, operations, and incentive tools, handling project, design, pricing, hardware, and contact data. API Access is a paid add-on with a 30-day free trial; billing begins at the start of the closest month after the trial, and its fee is geo-specific and per-project. OpenSolar says it encrypts stored and transmitted data and uses role-based access controls. It targets 99.95% availability and monitors systems around the clock. Free accounts include dedicated 24/7 support, alongside live help, tickets, training, webinars, and a Help Center. The platform is available on Android, iOS, macOS, web, and through an API.

Who it is for

OpenSolar is intended for solar installers, sales teams, and energy professionals. It may suit teams seeking design, sales, and project-management tools, with API connections to business systems.

What is good

Ada AI creates multiple system designs from preferences
Branded proposals support flexible payments and real-time updates
Includes invoicing, reminders, online payments, and e-signatures
Free accounts include dedicated 24/7 support

What to know first

API Access is a paid add-on
API fees vary by region and project
API billing begins after the 30-day trial

Verdict

OpenSolar Pro brings solar design, sales, and project management into a free platform. API Access has a separate trial and per-project, geo-specific pricing, so teams should consider that distinction when planning integrations.

OpenSolar plans and pricing

All plans

OpenSolar Pro Free Free of charge Solar design, sales, and project management opensolar.com · 2 Oct 2026

OpenSolar API Access Not published Per-project fee; pricing is geo-specific Paid add-on; fee applies when a project is created opensolar.com · 2 Oct 2026

Compared on solar installation software

Free plan: Yesopensolar.com
Site survey forms: Yesopensolar.com
Design handoff: Yesopensolar.com
Crew scheduling: Yesopensolar.com
Service visit tracking: Yesopensolar.com

Facts

Product: OpenSolar describes its software as a free, AI-powered platform for solar professionals to design, sell, and manage projects.opensolar.com · 2 Oct 2026
AI design: Its Ada AI can auto-design multiple solar systems according to design preferences in seconds.opensolar.com · 2 Oct 2026
Proposals: Users can create customizable, business-branded customer proposals with flexible payments and real-time updates.opensolar.com · 2 Oct 2026
Payments: The platform supports branded invoices, payment milestones, automated reminders, online payments, and e-signatures.opensolar.com · 2 Oct 2026
Hardware: Users can order equipment within the design experience and generate a bill of materials from a hardware catalogue.opensolar.com · 2 Oct 2026
Integrations: The API connects OpenSolar with CRM, accounting, operations, and incentive tools, and supports project, design, pricing, hardware, and contact data.opensolar.com · 2 Oct 2026
API trial: OpenSolar API Access has a 30-day free trial; after the trial, billing starts at the beginning of the closest month.opensolar.com · 2 Oct 2026
Security: OpenSolar says it encrypts stored data at rest and data in transit using TLS/SSL, and uses role-based access controls.opensolar.com · 2 Oct 2026
Availability: OpenSolar states a 99.95% service availability target and 24/7 system monitoring.opensolar.com · 2 Oct 2026
Hosting: The platform is hosted on AWS, with production systems in the Asia-Pacific Sydney region and a global content delivery network.opensolar.com · 2 Oct 2026
Platforms: OpenSolar describes its SaaS application as accessible through web browsers and says it supports iOS, Android, PC, and Mac devices.opensolar.com · 2 Oct 2026
Support: OpenSolar says free accounts include dedicated 24/7 support, with live support, ticket-based help, training, webinars, and a Help Center.opensolar.com · 2 Oct 2026
Audience: OpenSolar says its platform serves solar installers, sales teams, and energy professionals worldwide.opensolar.com · 2 Oct 2026
Company history: OpenSolar says solar industry veterans Adam Pryor and Andrew Birch started the company in 2017.opensolar.com · 2 Oct 2026