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Photovoltaic technology has become a key strategy to achieve the European goal of renewable energy rate. But the photovoltaic market is not uniform in the European Union, with different support policies in each country. These policies, if are stable and suitable over a period, can influence investment decisions and ensure a profitability in the investment.

This paper studies the profitability of photovoltaic self-consumption installation in Spanish households with Spanish regulations. To develop this study, the electric consumption profile of houses was considered. The difference in profitability has been analyzed according to the number of members of the household.

Furthermore, the impact of the adoption of another type of self-consumption support policy has been analyzed (France, Germany, Italy, Great Britain, and Finland). For this, all incentives have been scaled up to the Spanish price. The result is that all these …