Economic analysis on small-scale forest biomass gasification considering geographical resources distribution and technical characteristics

Kenjiro Yagi, Toshihiko Nakata

研究成果: Article査読

31 被引用数 (Scopus)

抄録

Biomass is getting the great interest in Japan, and the cabinet approved " Biomass Nippon Strategy" in 2002 to promote the utilization of biomass. Although various projects utilizing wood biomass for energy uses have started already, many of them utilize mainly waste wood. Forest biomass remains unutilized because of the high logistic cost and the small scale of resource generation at a site. Small-scale gasification is considered as a suitable technology for forest biomass, and more than 10 demonstration plants have started to be operated recently. This study analyzes the economic feasibility of the small-scale forest biomass CHP system with gasification technology in Japan.The authors have developed the BiRReT tool, which takes input data such as geographical resource distribution and scale merit information of the target technology, and analyzes the economics of bioenergy system in target region by finding the optimal conditions; namely plant size, plant location, the number of plants, and lower generation costs. A case study in Miyagi prefecture revealed the conclusion that the system with logging residue fuel has the economic feasibility if the capital cost and the resource price will decrease from the BAU case by technological learning in the future. On the other hand, thinned wood will not be utilized as a fuel for power plants due to high fuel production cost. It is also found by the tool analysis that the technology's scale merit has stronger impact on power generation cost in the trade-off between scale merit and the transportation cost.

本文言語English
ページ(範囲)2883-2892
ページ数10
ジャーナルBiomass and Bioenergy
35
7
DOI
出版ステータスPublished - 2011 7

ASJC Scopus subject areas

  • 林業
  • 再生可能エネルギー、持続可能性、環境
  • 農業および作物学
  • 廃棄物管理と処理

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