GreenChain
Green Distributed Ledger Technology (GreenChain) is an energy-conscious distributed-ledger platform designed to overhaul the upkeep of solar-photovoltaic (PV) assets. Built on Hyperledger Fabric, it couples a low-energy Proof-of-Stake/Raft consensus, private data collections and adaptive sharding to ensure secure, scalable and resource-efficient operation while sharply reducing blockchain power consumption. Continuous IoT telemetry from in-field sensors is channelled through AI/ML-enhanced oracles to detect anomalies, forecast production and trigger preventive work orders; smart contracts then issue Tokenised Maintenance Certificates that immutably record each intervention and performance result. This hybrid on-chain/off-chain architecture preserves privacy, prunes redundant data and maintains cryptographic proofs, giving stakeholders verifiable yet lightweight records that streamline audits and compliance.
Operationally, GreenChain automates scheduling, documentation and validation of maintenance activities, cutting downtime and labour while extending system life. Producers gain near-real-time dashboards, regulators obtain tamper-proof evidence, and service companies benefit from transparent KPIs and incentive mechanisms tied to asset reliability. Cross-chain bridges open pathways to supply-chain networks and renewable-certificate markets, positioning the platform as a nexus for broader green-finance ecosystems.
The solution is being developed by the Obsidian Innovation Institute (Portugal) and Fotovoltaica Macotera SL (Spain) and is undergoing a live pilot at Fotovoltaica Macotera’s PV facility to validate performance, scalability and user experience before large-scale roll-out . Aligned with TrustChain Open Call #5, GreenChain demonstrates how a legally compliant, user-centric blockchain can advance renewable-energy maintenance, drive operational excellence and set a benchmark for sustainable digital infrastructure.
- Motivation for the project: GreenChain equips TrustChain with a low-energy Hyperledger Fabric layer delivering verifiable IoT solar data, automated maintenance smart-contracts and private channels, thereby expanding the ecosystem toward sustainable, real-world energy services.
- Generic use case description: A solar farm streams encrypted sensor data to GreenChain; AI oracles flag panel faults, smart contracts auto-issue tokenised work orders, and verifiable proofs sync to TrustChain for regulators, investors and service firms.
- Essential functionalities: IoT-secure data ingest; AI anomaly-detection & forecasting engine; PoS/Raft ledger with private channels; smart-contract work-order issuance; tokenised maintenance/energy certificates; cross-chain proofs to TrustChain.
- How these functionalities can be integrated within the software ecosystem: GreenChain exposes MQTT + REST/GraphQL gateways for sensor streams and AI alerts, packages Fabric channels as Docker micro-services, and provides a bridge-SDK that syncs hashes and tokens to TrustChain, enabling any app to pull proofs or trigger jobs via open APIs.
- Gap being addressed: Solar-PV maintenance relies on siloed logs, manual inspections and non-standard data, hampering interoperability, delaying fault response and depriving value-chain actors of tamper-proof evidence of asset health.
- Expected benefits achieved with the novel technology building blocks: GreenChain is a maintenance platform yields transparent asset records, predictive fault detection, automated smart-contract workflows and seamless IoT integration, cutting downtime and costs while improving efficiency, asset longevity and stakeholder trust.
- Potential demonstration scenario: Live pilot at a solar farm: sensors feed real-time telemetry to GreenChain; AI flags a failing panel string, auto-issues a smart-contract work order; crew repairs within hours; immutable maintenance and performance proofs appear on shared dashboard/APIs.
Team
Pedro Branco
Pedro Branco – Obsidian Innovation Institute engineer spearheading GreenChain’s system design and prototype development.
Gregorio Garcia Sanchez
Gregorio García Sánchez – Maintenance-operations specialist at Fotovoltaica Macotera SL, supplying frontline PV expertise to the SolarChain project’s blockchain-based upkeep platform.
Entity
Obsidian Innovation Institute - Associação
Research-driven organisation developing advanced decentralised-ledger technologies for sustainable energy and digital-trust applications.
Website: https://obsidiani2.org/
Fotovoltaica Macotera SL
Spanish photovoltaic-plant owner that hosts the SolarChain field trials at its Macotera PV site, providing real-world operational data.
Website: https://fotovoltaicamacotera.com/