> For the complete documentation index, see [llms.txt](https://docs-launchpad.energyweb.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs-launchpad.energyweb.org/ewx-ecosystem/worker-nodes/worker-node-use-cases/sample-enterprise-use-cases/green-proofs/green-proofs-as-a-service-gpsaas.md).

# Green Proofs as a Service (GPSaaS)

The Green Proofs system ensures that energy usage is verified as green by managing and validating green certificates for various energy operations. All data sent to workers originates from the Green Proofs application, which transforms it into operations like issuing, transferring, or retiring certificates.

<figure><img src="/files/puNEXOBGFRqFxNcG7ys4" alt=""><figcaption><p>GPSaaS Overview</p></figcaption></figure>

[Learn more](/energy-solutions/green-proofs-by-energy-web/use-cases-and-reference-implementations/green-proofs-as-a-service-gpsaas.md)