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I've been trying to create an EPW weather file for EnergyPlus for a building in the Cardiff region, and have looked through various methods of gathering actual measured data per hour for approximately 1 year. It seems to me that if I don't want to purchase this data from a source such as Weather Analytics, then the best way would be to try and utilize Weather Underground's meteorological data. I've seen suggestions of utilizing BeautifulSoup methods to scrape the hourly data from Weather Underground, and I imagine that would be the best way given the length of the simulation. My current issue, though, is the lack of cloud cover/solar radiation information in the WU database. Any suggestions where I may reliably find this data on an hourly basis that I can supplement to the WU data for a sufficient EPW? Also, any other suggestions to improve my methods would be greatly appreciated, as this is my first time generating weather files for EPlus. Thanks

I've been trying to create an EPW weather file for EnergyPlus for a building in the Cardiff region, and have looked through various methods of gathering actual measured data per hour for approximately 1 year. It seems to me that if I don't want to purchase this data from a source such as Weather Analytics, then the best way would be to try and utilize Weather Underground's meteorological data. I've seen suggestions of utilizing BeautifulSoup methods to scrape the hourly data from Weather Underground, and I imagine that would be the best way given the length of the simulation. My current issue, though, is the lack of cloud cover/solar radiation information in the WU database. Any suggestions where I may reliably find this data on an hourly basis that I can supplement to the WU data for a sufficient EPW? Also, any other suggestions to improve my methods would be greatly appreciated, as this is my first time generating weather files for EPlus. Thanks

I've been trying to create an EPW weather file for EnergyPlus for a building in the Cardiff region, and have looked through various methods of gathering actual measured data per hour for approximately 1 year. It seems to me that if I don't want to purchase this data from a source such as Weather Analytics, then the best way would be to try and utilize Weather Underground's meteorological data. I've seen suggestions of utilizing BeautifulSoup methods to scrape the hourly data from Weather Underground, and I imagine that would be the best way given the length of the simulation. My current issue, though, is the lack of cloud cover/solar radiation information in the WU database. Any suggestions where I may reliably find this data on an hourly basis that I can supplement to the WU data for a sufficient EPW? Also, any other suggestions to improve my methods would be greatly appreciated, as this is my first time generating weather files for EPlus. Thanks