OpenSolar

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Score7.3

Rank#2 of 26

PriceFree

Free planYes

Free trialYes

Runs onAndroid, API, iOS, macOS, 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 generate multiple solar system designs based on design preferences. Users can prepare customizable, business-branded proposals with flexible payment options and real-time updates. The platform also supports branded invoices, payment milestones, automated reminders, online payments, and e-signatures. Equipment ordering is available within the design experience, and a hardware catalogue can generate a bill of materials. The API connects with CRM, accounting, operations, and incentive tools, and supports project, design, pricing, hardware, and contact data. API access is a paid add-on with a 30-day free trial; its fee varies by region and project, and billing begins at the start of the closest month after the trial. OpenSolar says it encrypts stored and transmitted data, uses role-based access controls, and targets 99.95% availability with 24/7 monitoring. Free accounts include dedicated 24/7 support.

Who it is for

OpenSolar suits solar installers, sales teams, and energy professionals who need tools for project design, customer proposals, payments, and management. It may also suit teams connecting solar project data to other business tools through an API.

What is good

Free plan covers solar design, sales, and project management
Ada AI creates multiple designs from preferences
Supports branded proposals, invoices, and online payments
Free accounts include dedicated 24/7 support

What to know first

API access is a paid add-on
API pricing varies by region and project
API trial lasts 30 days

Verdict

OpenSolar brings design, sales, payments, and project management into one platform for solar work. Its core plan is free, while API access has separate, region-specific project fees after the trial.

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