Global Registry for Renewable Energy Certificates
The Tradable Instrument for Global Renewables (TIGR) Registry provides a transparent, standardized platform for global REC tracking. Project developers, asset owners and corporations trust it to issue and manage TIGRs across jurisdictions. The registry enforces robust traceability and reporting to prevent double counting and support global sustainability claims.
Trusted Since 2013
Built by Xpansiv® Registries™, the global leader in environmental registry infrastructure
Global Coverage
Supports renewable energy tracking across developing and mature renewable markets
Diverse Assets
TIGRs produced by solar, wind, hydro, geothermal and other assets
Market Transparency
Ensures secure issuance, transparent transfers and traceable retirement records
Over a Decade of Clean Energy Leadership
How It Works
The process is straightforward, efficient and trusted by producers and certificate buyers worldwide.
Register Assets & Report Generation
Generators register and gain approval. They then report verified clean energy production on an ongoing basis.
Issue & Transfer TIGR Certificates
TIGRs are issued based on renewable production, with each certificate representing 1 MWh of renewable electricity generated. They are managed and transferred through a secure, traceable ledger.
Retire for Claims
Purchasers retire TIGRs to support emissions reduction claims and sustainability reporting.
Key Capabilities
- Standardized REC issuance and lifecycle management
- Chain-of-custody traceability with audit support
- Alignment with voluntary sustainability programs
- Multi-registry portfolio visibility available through Xpansiv® Connect™
Asset & Portfolio Management
Manage global renewable project data and tasks in one portal – including issuance, transfers and retirements.
Centralized Project Oversight
View asset status, certification history and certificate balances.
Secure Chain-of-Custody
Audit-ready tracking prevents double counting across markets.
Sustainability Reporting
Export certificate issuance and retirement records to support a range of voluntary reporting activities.
Industries We Serve
TIGR is among the most trusted names in global renewable energy and a leader in RECs. We serve a wide variety of participants, including:
- Independent power producers (IPPs)
- Utilities
- Corporate renewable energy buyers and sustainability teams
- Retail energy providers
- Power marketers and brokers
- Energy and environmental commodities traders
Get More Value from the Xpansiv Platform
Complement TIGR with solutions that enable you to transact RECs, produce and manage RECs in North America and manage your cross-registry positions.
Get Started Today
See how TIGR can streamline REC tracking and sustainability reporting across your global portfolio.
Frequently Asked Questions
Answers to common questions about TIGR
How will buyers know they are purchasing RECs tracked in the TIGR Registry?
Buyers can establish their own accounts on the TIGR Registry and actively manage the transfer and retirement processes. Alternatively, buyers can buy through intermediaries (brokers and retailers) who have accounts on the registry. In both cases, every purchaser will have full transparency through a privately accessed web portal to see RECs retired for their benefit. This is key to ensuring the instruments’ credibility.
Who buys RECs from the TIGR Registry?
We have experienced strong interest from corporate sustainability teams seeking renewable energy as part of their sustainability strategy. The TIGR Registry team also assists retailers who are purchasing and retiring voluntary supply for their clients in a reliable and transparent way. The TIGR Registry is becoming a standard way for project developers to showcase their projects to potential buyers, investors and lenders.
How do I buy RECs from the TIGR Registry?
RECs support the development of renewable energy sources, connecting generators with companies seeking to support green energy. You can buy RECs directly from project developers, as well as from retailers or through brokers. If you are looking for projects in a specific country, review the project list. If you do not see what you are looking for, please reach out as we work with project developers in many countries.
Does Xpansiv provide REC registry services within North America?
Yes. The North American Renewables Registry (NAR™) spans 29 states and provinces, as well as Puerto Rico and Guam, serving as a system of record for state compliance programs and major voluntary standards, including the Green-e® Energy program.
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