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Political decision making and legislation are favoring the use of renewable energy sources in electricity markets in many European countries. One of these countries is Germany, which electricity market is examined in this thesis. Therefore, renewable energy generation has increased significantly during the past decades. These environmentally friendly energy sources cause challenges to electricity markets. Compared to fossil fuels renewable energy is intermittent and not easily adjustable to electricity demand. Thus, understanding how renewables impact electricity prices is essential. The objective of this thesis is to examine the impacts of wind and solar energy production on day-ahead electricity prices in Germany. The data used in this thesis is from German markets and covers the period from January 2015 to December 2019. All the data is from the European Network of Transmission System Operators for Electricity, which is an online data transparency platform for European electricity system data. The identification method used in this thesis is fixed effects model, which is regression model that is suitable for panel data set. Five independent variables are included in the model, and wind and solar power generation are examined separately in this thesis. The results of this thesis suggest that increased amounts of wind power feed-in decreases electricity prices. These results are in line with the previous studies. However, the magnitude on wind production price impact was more modest compared to previous studies. Results of solar power generation were more surprising, as it seemed to have slightly positive impact on day-ahead electricity prices. However, it is worth noticing that estimates were not statistically significant at 0.1 significance level, and according to robustness checks results varied. Robustness checks with other variables support obtained results. Comparison between results of wind and solar power price impacts showed that wind power generation has a greater impact on day-ahead electricity prices. This observation is in line with most of the previous literature.