Economic Analysis of Hydrogen Household Energy Systems Including Incentives on Energy Communities and Externalities: A Case Study in Italy

The building sector is one of the key energy consumers worldwide. Fuel cell micro-Cogeneration Heat and Power systems for residential small commercial applications are proposed as most promising innovations contributing to transition towards a sustainable infrastructure. For application diffusion these systems, in addition their environmental performance, it necessary, however, evaluate economic feasibility. In this paper life cycle assessment fuel cell/photovoltaic hybrid micro-cogeneration heat power system integrated with detailed analysis. Financial indicators (net present cost payback time used studying two different investments: reversible-Solid Oxide Cell natural gas SOFC comparison base scenario, using homeowner perspective approach. Moreover, alternative incentives scenarios analysed applied: net metering self-consumers’ groups (or communities). Results show that both obtain annual savings, but high capital costs still would make investments not profitable. However, Solide incentive best scenario among all. On contrary, maximizes its performance only when applied. complete analysis, impacts monetized three monetization methods aim internalize (considering them into direct cost) externalities (environmental costs). If considered an effective cost, increases saving because impact lower than case one, while reduces it.