Switchgrass (Panicum virgatum L.) is a highly drought-resistant and cold-tolerant perennial energy crop, promising a favourable biomass energy source lately. For cost-effective switchgrass cultivation, physical characteristics and cost factors are critical in encouraging decision-makers to invest in this field. This study aims to develop a methodology to place cost analyses on a spatial basis and relate them with the environmental factors in the Eskisehir province, Türkiye. The results of a former study presenting the suitable lands for switchgrass cultivation in the region, in terms of physical parameters, were used to perform the spatial cost analysis based on the so-called indirect factors, fuel consumption, and crop yield. Regarding the assumed yield amounts and fuel consumption, the findings revealed that switchgrass agriculture on suitable lands would not promise a fixed profitability rate or fixed dry product sales price. Hence, different dry product sales prices were spatially determined and mapped according to five profitability ratios. The sales prices of the dry crop produced from high-suitable agricultural lands were found to be competitive (26.24 USD, 26.28 USD, and 26.31 USD) under free market conditions. Profitability rates varied between 22.79% and 22.66% with an optimistic scenario. It is predicted that 124,680 tons of bioethanol can be obtained with switchgrass production on lands where maximum benefit is provided. The method presented in this study demonstrates that a suitable site selection process can be conducted more holistically when cost-affecting parameters are integrated into spatial analyses and layering processes.

柳枝稷 ( Panicum virgatumL.) 是一种高度抗旱和耐寒的多年生能源作物，最近有望成为一种有利的生物质能源。对于具有成本效益的柳枝稷种植，物理特性和成本因素对于鼓励决策者对该领域进行投资至关重要。本研究旨在开发一种方法，将成本分析置于空间基础上，并将其与土耳其埃斯基谢希尔省的环境因素联系起来。先前一项研究的结果根据物理参数介绍了该地区适合柳枝稷种植的土地，并用于根据所谓的间接因素、燃料消耗和作物产量进行空间成本分析。关于假定的产量和燃料消耗，调查结果显示，在合适的土地上种植柳枝稷不会保证固定的盈利率或固定的干品销售价格。因此，根据五种盈利率在空间上确定和映射了不同的干品销售价格。在自由市场条件下，从高度适宜的农业用地生产的旱作作物的销售价格被发现具有竞争力（26.24 美元、26.28 美元和 26.31 美元）。在乐观情况下，盈利率在 22.79% 和 22.66% 之间变化。据预测，在提供最大效益的土地上生产柳枝稷可获得 124,680 吨生物乙醇。