電化加熱・外皮改善・オンサイト太陽光を統合したネット・ゼロ・エネルギー温室コンセプトの実規模フィールド評価
Full-scale field evaluation of a net zero energy greenhouse concept integrating electrified heating, envelope improvements, and on-site photovoltaics (原題)
Soma Sugano, Masahisa Ishii, Ryota Tsuchiya, Yuta Ohashi, Yasumasa Hayashi, Masakazu Kawanami, Shin‐ichi Tanabe
🤖 gxceed AI 要約
日本語
日本の商業イチゴ栽培温室において、地下水熱源ヒートポンプ・二重断熱カーテン・オンサイト太陽光を備えたZEG型温室と従来型温室を同一条件で実規模比較した初の研究。加熱一次エネルギーを58%、CO2排出を68%、加熱コストを76%削減し、PVが加熱一次エネルギーの25%を賄えることを実証した。施設園芸の脱炭素に向けた電化・断熱・再エネ統合の実践的根拠を提供する。
English
First full-scale parallel field comparison of a Net Zero Energy Greenhouse (ZEG) versus a conventional greenhouse under identical conditions for commercial strawberry cultivation in Japan. The ZEG, using a groundwater-source heat pump, double thermal curtains, and on-site PV, cut heating primary energy by 58%, CO2 emissions by 68%, and heating costs by 76%, with PV supplying 25% of heating energy demand. It provides field evidence for electrification, insulation, and renewables as practical greenhouse decarbonization strategies.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本の農業分野はGX推進の重点領域であり、施設園芸の電化・再エネ導入は農林水産省の脱炭素政策やJ-クレジットとも連動する。化石燃料依存の冬期加熱を削減する実証データは、農業法人の投資判断や自治体の補助事業設計に資する。
In the global GX context
Agriculture is a hard-to-abate sector increasingly covered by climate disclosure and transition finance frameworks. This field evidence on electrified heating and on-site renewables in horticulture offers a replicable model for decarbonizing controlled-environment agriculture, relevant to corporate Scope 1/2 accounting and agricultural transition finance globally.
👥 読者別の含意
🔬研究者:施設園芸の脱炭素技術統合の実規模効果を定量化した貴重な比較データを提供する。
🏢実務担当者:ヒートポンプ・断熱・PVの組み合わせで加熱コストと排出を大幅削減できる投資判断材料となる。
🏛政策担当者:農業分野の電化・再エネ補助政策や脱炭素計画の設計に実証的根拠を与える。
📄 Abstract（原文）
Abstract To address climate change and the transition to a low-carbon society, greenhouse horticulture must improve energy performance, as greenhouse facilities are energy-intensive systems requiring environmental control for crop cultivation. In particular, winter heating relies heavily on fossil-fuel-based systems, making improvements in efficiency and fuel switching critical challenges for greenhouse decarbonisation. This study presents the first full-scale parallel experimental comparison between a conventional greenhouse and a greenhouse designed according to the Net Zero Energy Greenhouse (ZEG) concept in Japan, operated under identical structural and climatic conditions. Here, ZEG refers to a greenhouse design that reduces primary energy consumption through electrification, improved efficiency, and renewable energy integration, drawing on the evaluation framework used for zero energy buildings (ZEB). The study evaluates a ZEG-type greenhouse equipped with a groundwater-source heat pump, double-layer thermal curtains, and an on-site photovoltaic system. Measurements were conducted during the heating season and compared with a conventional greenhouse under commercial strawberry cultivation conditions. Results show that integrating groundwater-source heat pumps and enhanced thermal insulation reduced primary energy consumption for heating by 58% and CO 2 emissions by 68% relative to the reference greenhouse, while maintaining comparable cultivation conditions. In addition, on-site photovoltaic generation supplied renewable electricity equivalent to 25% of the heating-related primary energy demand of the ZEG-type greenhouse. Furthermore, heating energy costs were reduced by 76%. These results provide field-based evidence supporting the use of integrated electrified heating, improved envelope performance, and on-site renewable generation as practical strategies for reducing energy use and CO 2 emissions in greenhouse systems.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1038/s41598-026-67257-8first seen 2026-09-11 05:09:22
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