OpenSolar
Claim this toolAccelerating solar adoption globally with free software for design, sales, and project management.
Free, no paid tier Visit WebsiteThe Bottom Line
- Price
- Free, no paid tier. Compare plans
Key facts
- Free software for solar professionals to design, sell, and manage projects.
- Offers an end-to-end workflow including AI lead gen, auto design, and integrated finance.
- Committed to accelerating global solar adoption with continuous product enhancements.
Pros
- Core software is free of charge for solar professionals.
- Comprehensive end-to-end solution for the entire solar workflow.
- Regular product updates introduce new features and improvements.
- Supports integration with third-party tools and financial services.
- Aims to increase profitability and efficiency for solar businesses.
Cons
- API access and app connectors will incur charges starting April 2026.
- Some advanced features or integrations may be region-specific (e.g., UK Finance Marketplace).
What is OpenSolar?
Available on: Web
Ratings Across the Web
OpenSolar holds an aggregate rating of 4.8 out of 5 from 3 reviews across G2, last checked October 8, 2026.
Ratings aggregated from independent review platforms. Learn more
Preview
Key Features
- Solar system design studio
- AI-powered lead generation technology
- Auto System Design
- Sales proposal generation with whole-home electrification options
- Integrated finance marketplace (e.g., UK Finance Marketplace, Sungage's Sunrise™ Escalator loan)
- Project Management CRM with task management tools
- Unified payment request flow and bank transfer support
- Hardware shop and purchasing integration
Pricing Plans
Pricing checked Oct 8, 2026. Source: opensolar.com/pro, read Oct 8, 2026
| Plan | Price | Details |
|---|---|---|
| Free | Free |
+17 more Show less
|
Is OpenSolar worth the price?
OpenSolar's pricing is incredibly generous, offering a fully-featured platform for free.
This makes it an exceptional value, especially for startups and small to medium-sized solar businesses looking to minimize overhead. It's best for any solar professional or company seeking a comprehensive, no-cost solution for their operations.
OpenSolar by the numbers
| Metric | OpenSolar | Peer median | Position (1 is best) |
|---|---|---|---|
| Free plan | Yes | 8 of 29 have one | n/a |
| Listed as an alternative to | 1 tool | 2 | #16 of 29 (joint) |
Each position is counted among the tools that have data for that row, as noted under it. All Proposal Software data · How we compute this. Advertising and placement fees are not inputs to any position.
Cite this: Toolradar, “OpenSolar by the numbers”, Oct 2026.
Reviews
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OpenSolar FAQ
How does OpenSolar support the sales process for solar professionals?
What kind of user benefits most from OpenSolar?
How is OpenSolar priced?
Can OpenSolar integrate with other business tools?
Why might a solar professional choose OpenSolar over FieldPulse?
Does OpenSolar have any regional limitations for its features?
Source: opensolar.com