How do businesses validate and verify the carbon reductions from solar projects

Verifying emission reductions from solar installations

Accurate verification involves measuring actual energy generation, applying appropriate grid emission factors, and documenting assumptions and methods. Third-party verification or adherence to recognized standards enhances credibility. For reporting, many businesses use the GHG Protocol methods and verified RECs to substantiate claims.

Verification steps:

• Use monitored generation data (kWh) collected by the system
• Apply a reliable emission factor to convert saved kWh into avoided CO2 equivalents
• Document methodologies and have results internally or externally audited

Tools and assurances

• Use third-party auditors, registries, or program verifications for high-stakes claims
• Retire RECs where needed to avoid double-counting
• Include sensitivity analysis for grid factor variations

Transparent measurement and third-party validation improve stakeholder confidence and ensure reported emission reductions are defensible.