Nick, You might try contacting Weather Analytics (http://weatheranalytics.com/). Best, David On 2/9/2012 10:19, Nick LaHam wrote: Does anyone know if there is a website or database that can offer you solar insolation levels updated daily for larger cities? Not historical data, like TMY, but more like a daily weather forecast. -- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley@tess-inc.com http://www.tess-inc.com http://www.trnsys.com |