How can I Analize a large data set?

I need to analyze several sources of electric power generation and their respective energy production in each hour of a day over an interval of almost 6 years. This gives me just over 50,000 rows of data. I tried to do a graphical analysis, but it was not a good idea. I plotted using the .plot () function of the pandas and the information was very concentrated, it is as if there was not enough space to put all the hours of the period on the time axis (even because there are 50000 time intervals of 1 hour), so on this axis it’s showing as if the period was divided into years, when in fact it is in hours. Do you have any tips for any other tool that I can use to do some kind of analysis, any method or alternative?

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