PV design software technology is evolving as fast as PV hardware. Here is a brief survey of some of the available and emerging offerings.
The Evolution of PV Design
The design process for photovoltaic systems has, for the most part, transitioned from a simple electrical equation to a complicated three-dimensional architectural, solar and financial analysis. The anachronistic equation of amps out to amps in, needed to figure out how a twelve volt module could refill a twelve volt battery, has proved inadequate for today's PV systems, which are connected to the public electrical grid and draw on a wide variety of inputs. Not coincidently, the connection of our PV systems to the energy 'cloud' has fostered a boom in modeling software in the internet cloud. The following is a basic survey of some of the notable players in the PV Design arena today.
This is a tangential product by Solmetric that had to be noted for its simple beauty: Take any roof angle and azimuth and instantly visualize the previously maddening combined azimuth and tilt that results from non-parallel or off-axis module array mounts. Price: Free