Pemanfaatan Blockchain untuk Mencatat Potensi Carbon Credit Berdasarkan Energi Pembangkit Listrik Tenaga Surya
Keywords:
Blockchain, PLTS, Carbon Credit, Verifikasi Energi, Smart ContractAbstract
Global climate change driven by greenhouse gas emissions highlights the need for transparent, secure, and auditable renewable energy verification systems, particularly for converting clean energy into carbon credits. Solar power plants (PLTS) offer significant potential for emission reduction, yet conventional verification mechanisms remain constrained by slow processes, high costs, and vulnerability to data manipulation and double counting. This study proposes integrating a PLTS monitoring system with private blockchain technology and smart contracts to automate real-time energy-production verification. The proposed system, EnergyCreditUnit (ECU), records daily production data from logger devices as blockchain blocks secured by SHA-256 hashing and validates them through smart contracts on a Node.js runtime with RocksDB state storage. Using a 91-day dataset from PT XYZ (October-December 2020), the system achieved an average transaction latency of 122.32 ms, a throughput of 8.18 TPS, 100% hash consistency, 185.67 ms multi-peer block propagation, and a 100% voucher-transaction success rate. Three attack scenarios (block tampering, chain manipulation, and forged ECDSA signatures) were all detected. The results show that a private blockchain can serve as a viable, tamper-evident infrastructure for recording carbon-credit potential from solar energy production.
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