動的水素混焼を伴う統合エネルギーシステムのための炭素責任指向型需給協調低炭素ディスパッチ枠組み

Unofficial AI-generated summary based on the public title and abstract. Not an official translation.

🔬研究者:統合エネルギーシステムにおける炭素帰属・貯蔵炭素会計の手法論として、NCIベースの需給協調モデルに関心のある研究者に有用。

🏢実務担当者:水素混焼や電力・熱・ガス統合システムを運用する企業が、Scope 2/3算定や炭素責任配分の精緻化に活用できる。

🏛政策担当者:水素混焼の炭素係数や貯蔵エネルギーへの炭素帰属ルール設計を検討する規制当局に参考となる。

Abstract The effectiveness of carbon-responsibility signals in source–load coordination depends on accurate carbon tracing through energy-conversion and storage processes. Existing integrated energy system (IES) studies often treat hydrogen-source attribution and storage-carbon tracking separately, which can alter the NCI signals delivered to end users. This study develops a source–temporal carbon-accounting method for an electricity–heat–gas–hydrogen integrated energy system and uses the resulting nodal carbon intensity (NCI) in iterative source–load coordination. Electrolytic hydrogen inherits the carbon intensity of its actual electricity supply, including storage discharge, and this attribute is propagated through time-varying hydrogen–natural-gas conversion. Cyclic carbon intensity of stored energy (CISE) is then used to maintain the storage-carbon boundary over the scheduling horizon, with its convergence condition derived under frozen physical dispatch. Case-study results show that assigning newly produced electrolytic hydrogen zero carbon causes a maximum H₂-node NCI deviation of 0.1084 kgCO₂/kWh, while replacing cyclic storage accounting with a one-pass calculation produces deviations of 0.1615 kgCO₂/kWh at the electricity node and 0.5236 kgCO₂/kWh at the H₂ node. Compared with fixed 10% hydrogen blending, optimized 0–20% blending reduces gross operating cost by 9,384.59 CNY, emissions from 428.446 to 427.890 tCO₂, and renewable energy source (RES) curtailment from 2.835% to 2.020%. With the NCI price coefficient set to 100 CNY/tCO₂, the case with IDR and dynamic 0–20% hydrogen blending gives emissions of 392.192 tCO₂ and RES curtailment of 1.592%; the larger emission reduction relative to the non-IDR cases is mainly associated with IDR. Preserving hydrogen-source attribution and temporal storage-carbon states improves the accounting consistency of load-node NCI and supports more consistent source–load coordination decisions in hydrogen-integrated IESs.

• openalex https://doi.org/10.1088/2631-8695/aea953first seen 2026-09-19 05:05:04