This set of three plots represents one week's worth of weather data for the SDA site; the data include the forecast fraction of cloud cover (top), the predicted outdoor temperature (middle), and our predicted direct normal (EDnorm) and diffuse (EF) irradiance components (bottom) as a function is apparent solar time (ast) measured in hours.

Click on the image for today's weather.

This "sedimentary" plot indicates the predicted power output in W over the next week from the DarnaSol roof arrays (PmpRoof) and the tracking PV array (PmpTrack); power production is indicated as negative values. Power consumption (positive) corresponding to scheduled daily activities (total eLoad), EV charging, and HVAC power consumption corresponding to heating and cooling duties resulting from the removal of waste heat and heat transfer due to conduction through the exterior walls (Qwallcond) and windows (QwinRad).

Click on the image for today's data.

This set of three plots summarize DarnaSol's net electrical power production (negative) and consumption (positive) over the next week (top), the predicted house primary battery charge level (middle), and the contest performance measure epsilon (bottom) which indicates the fraction of power consumption that is produced by the house PV and battery system.

Click on the image for today's predicted performance.


For more information contact www.thinfilm.umd.edu