License & Copyright
Free for personal, non-commercial use
© 2026 DEC Group Inc. All rights reserved. The Solar Pal name, DEC Group name, logo, and associated marks are trademarks of DEC Group Inc.
Personal use — permitted at no cost
- Install Solar Pal on any device you personally own
- Use Solar Pal for residential and personal solar system design
- Share the unmodified application files with others for personal use
Commercial use — requires written licence
- Use in a commercial solar design or installation business
- Integration into paid services, software products, or enterprise workflows
- Redistribution for profit or as part of a commercial offering
- Modification, rebranding, or creation of derivative works
For commercial licensing enquiries, contact info@decgroup.pro.
Disclaimer: Solar Pal output is a design aid only and is not a substitute for assessment by a licensed electrical engineer. All regulated installations must comply with applicable electrical codes — CSA C22.1 (Canadian Electrical Code) in Canada, NEC Article 690 in the United States, or the applicable local code in your jurisdiction. Consult a licensed master electrician before commencing any installation.