Blockchain-Based Peer-to-Peer Renewable Energy Trading System

Abstract

A home with solar panels might sell extra power directly to neighbors using a digital ledger system built just for this purpose. Instead of relying on big utilities, people swap energy through secure online agreements that run themselves when conditions are met. Think of it like a neighborhood network where each house has its own meter sending live updates to the shared record. Choosing how that record gets updated involves picking who can join, what rules apply, plus ways to bring outside information safely inside. One fresh idea tweaks how agreement is reached by giving credit to those whose predictions about usage come closest to reality. A fresh approach to pricing shifts and rewards using tokens takes shape here. Looking back at studies and test runs from 2018 up to 2026 reveals what's needed - also where things fall short. When it comes to safety, risks like altered records or spending twice get full attention. Privacy around meter readings? That gets weighed just as heavily. Instead of jumping straight into tools and numbers, we map out how to simulate the system first. Results pop up showing speed, delays, even power saved during trials. Moving forward, steps for rollout unfold along with time frames, each backed by cost estimates laid bare without filters. One setup here hits strong output plus taps into green sources - like that earlier test showing nearly 30 percent load drop. Clear oversight stays built in, so users keep authority. Work like this shapes what comes next, feeding both lab efforts and live systems where blockchains trade power.