PVEco – Profitability study of photovoltaic systems taking dynamic electricity tariffs into account

Description

The project investigates how the planned introduction of dynamic feed-in and electricity purchase tariffs will affect the profitability of photovoltaic systems on pitched and flat roofs and on facades in Switzerland. Profitability is evaluated for different locations, system sizes and designs, and with or without solar batteries.

A simulation model is used to control the charging and discharging of the battery, optimising the system's revenue with hourly tariffs. A total of nine different tariff scenarios are considered for the period 2026-2050. The hourly electricity market prices required for this are determined using a fundamental market model. Sensitivity analyses are carried out with different minimum remuneration levels. The results of the project should provide indications of the optimal system configurations from a business perspective, depending on own consumption and tariff scenarios.