Currently, the most efficient Photovoltaic (PV) modules are based on silicon heterojunction technology with the integration of monocrystalline silicon and amorphous silicon layers, reaching module conversion efficiencies up to about 22%. In the future, the performance of photovoltaic modules might be further enhanced by manufacturing Tandem devices joining monocrystalline silicon layers and innovative layers based on hybrid organic-inorganic materials, like perovskite. This type of module might permit to reach conversion efficiencies higher than 30%. In this context, this dissertation provides a techno-economic assessment for future installations of multimegawatt PV plants with innovative perovskite-silicon Tandem modules as part of a collaboration with the Research, Development & Technological Innovation department of Edison S.p.A.