Abstract Environmental concerns have increased over environmental hazards associated with fossil energy source, transition to renewable energy sources have been emphasized, this however requires relevant data for informed decision making. Critical analytical methods in situating bioenergy plants for bioenergy production are advantageous from environmental, economic and sustainable perspectives. A study therefore was undertaken to provide relevant data on biogas renewable energy source using Anambra State of Nigeria as a case study. The study was carried out using the power of Geographical Information System (GIS) technology. Several GIS thematic layers were obtained considering important factors in bioenergy plant location analysis. GIS-based thematic maps used for the production of the suitability map include political boundary map layer, road network layer, Land Use and Land Cover (LULC) layer, Digital Elevation Map (DEM) layer, river layer, slope layer, electric transmission line network layer, biomass potential density layer etc. Considering the fact that bioenergy plant is dependent on heat energy source which is also abundant in the tropics, hill-shade layer was integrated into the GIS location suitability analysis. Various economic and socio-environmental factors were considered and utilized in the development of economic, land suitability and bio-resource spatial density maps. These thematic maps were overlaid to obtain the final suitability map index. The most suitable sites identified were located in Njikoka, Onitsha North and Dunukofia Local Government Areas (L.G.As) of the Study area. The annual cumulative bio-wastes generated from the three LGA are 9,133,220 kg, 3,992,735 kg, and 6,909,450 kg respectively. It is recommended that government and stake-holders should take this study as a veritable tool in green energy technology implementation plan.

中文翻译：

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沼气发电厂的 Gis 生物废物评估和适用性分析：以尼日利亚阿南布拉州为例

摘要 与化石能源相关的环境危害引起了环境问题的关注，人们强调向可再生能源的过渡，但这需要相关数据来做出明智的决策。从环境、经济和可持续的角度来看，用于生物能源生产的生物能源工厂的关键分析方法是有利的。因此，以尼日利亚阿南布拉州为例，开展了一项研究，以提供有关沼气可再生能源的相关数据。这项研究是利用地理信息系统 (GIS) 技术的力量进行的。考虑到生物能源厂选址分析中的重要因素，获得了多个 GIS 专题图层。用于制作适宜性地图的基于 GIS 的专题地图包括政治边界地图层、道路网络层、土地利用和土地覆盖 (LULC) 层、数字高程图 (DEM) 层、河流层、坡度层、输电线路网络层、生物质势密度层等。 考虑到生物能源植物对热量的依赖由于热带地区的能源资源也很丰富，因此将山地阴影层整合到 GIS 位置适宜性分析中。在开发经济、土地适宜性和生物资源空间密度图时考虑并利用了各种经济和社会环境因素。这些专题地图被叠加以获得最终的适宜性地图索引。确定的最合适的地点位于研究区的 Njikoka、Onitsha North 和 Dunukofia 地方政府区 (LGAs)。三个LGA每年累计产生的生物废物为9,133,220公斤，3,992，分别为 735 公斤和 6,909,450 公斤。建议政府和利益相关者将此研究作为绿色能源技术实施计划中的一个名副其实的工具。