You can use the Net Present Value (NPV) calculation to find the total cost for your system. it will help you to determine the whole cost of your system in an easy way. we almost using the NPV in Life Cycle Costing.

Dear,

In the techno-economic analysis, you should determine the boundary of your study and based on that start calculating the capital expenditure (CAPEX), fixed operational expenditure (FOPEX) and variable operational expenditure (VOPEX). Holistically, all the CAPEX should be included in your calculations, including either equipment cost, wiring, distribution costs, and even land cost (i.e., CAPEX is the initial investment spent on the physical assets, buildings, technology, and equipment). As a piece of advice, please study the techno-economic studies and life cycle cost analysis recently published in your field of study. They would help you to do your analysis brick by brick. The most important part of your research would be calculating the CAPEX; please consider the scaling effect and technological learning based on the temporal scope of your study. Also, the FOPEX is mostly defined as a percentage of CAPEX, which varies between 16 to 2% of CAPEX. Moreover, VOPEX should include energy, material and personals cost. Calculating the total cost corresponded to your study, you can easily use economic indicators like NPV, IRR, PBP, etc., to show the financial performance of your case study.

Thank you so much