International Journal of Scientific Research and Engineering Development

Addressing the $15 trillion infrastructure financing gap hindering the sustainable energy transition, this paper presents the Fractional Solar DApp, a pioneering Decentralized Physical Infrastructure Network (DePIN) application deployed on the Arbitrum Sepolia Layer-2 testnet. Our platform democratizes clean energy investments by enabling solar farm owners to tokenize physical energy generation capacity as fractionalized Non-Fungible Tokens (NFTs). Governed by automated smart contracts, the DApp seamlessly facilitates transparent NFT minting, fractional ownership management, and peer-to-peer trading. To securely bridge the physical-to-digital divide, the framework leverages Trusted Execution Environments (TEEs) at the IoT hardware edge, establishing a robust Proof of Physical Work (PoPW) via unforgeable cryptographic attestation. Furthermore, the architecture introduces a Fractional Solar Token ($FST) Buy-Back and Burn mechanism allocating 0.5% of each Solar NFT sale to repurchase and burn $FST serving as a practical implementation of Burn-and-Mint Equilibrium (BME) tokenomics. Validated through empirical throughput metrics, transaction cost analysis, and spatial forecasting improvements, this research provides a highly scalable, low-cost blueprint for the decentralized financing and autonomous coordination of critical renewable energy infrastructure.

Ms. Maneesha P, Ms. Azin Madhu S,"Fractional Solar DApp: A Decentralized Physical Infrastructure Network (DePIN) for Renewable Energy Investment" International Journal of Scientific Research and Engineering Development, V9(2): Page(1755-1761) Mar-Apr 2026. ISSN: 2581-7175. www.ijsred.com. Published by Scientific and Academic Research Publishing.