Open Solar Contracts are now available for review

Provide Feedback

Streamlining Project Development Processes to Accelerate Solar Power Deployment Around the World



International Renewable Energy Agency (IRENA) and Terrawatt Initiative (TWI) have teamed up to support the rapid and widespread scale-up of solar energy in line with goals of the Paris Climate Agreement and Sustainable Development Goals. Open Solar Contracts streamlines project development and finance processes by offering simple and universally-applicable legal agreements that make contracting much faster and less costly.



Robust, clear and customizable documents



Two-year, multi-stakeholder approach, including top-tier law firms



Simplified and bankable solution to unlock solar potential



The Contracts


The contracts are products of a rigorous and collective process involving key market-leading energy stakeholders. Every effort has been made to fuse the expertise and experience from different jurisdictions to ensure that Open Solar Contracts products have a balanced risk allocation and apply universally.

Solar Contracts are fine-tuned for small and medium-sized, grid-connected solar PV projects. Standardised contracts include: Power Purchase Agreement, Implementation Agreement, O&M Agreement, Supply Agreement, Installation Agreement and Finance Facility Term Sheet. These are complemented by the Implementation Guidelines.

Contribute by reviewing the contracts


Open Solar Contracts will be available for review by global solar power community until September 30, 2019. All feedback will be carefully considered and appropriately integrated into a final set of contracts.

Click on the icons below to visit the review platform and provide feedback.

Implementation Guidelines
The Implementation Guidelines outline the overall approach, rationale, main assumptions and individual contract summaries. Download the Guidelines




Led by IRENA and TWI, Open Solar Contracts is a collaboration of global renewable energy professionals with a broad set of solar development expertise. Open Solar Contracts’ partners bring advisory and representation expertise in legal documentation for project development and financing. The partners include:


Contact Us


Open Solar Contracts is led by IRENA and TWI. Please contact key members of our team by sending email to,