OpenSolar is a good starting point for many solar installers, but you will soon find that OpenSolar is missing a few features that would make it a complete solar design solution.
With $0 Monthly Fees and a far better feature set, Pylon is the best OpenSolar alternative.
With OpenSolar, you will be forced to use low-resolution satellite imagery such as that which you will find on Google Earth, or if you want something better you will need to provide your own imagery. In comparison, Pylon provides you with high resolution aerial imagery as part of the application with $0 Monthly Fees.
Another point of difference is in the way OpenSolar and Pylon offer support. Premium support is available for OpenSolar users through SunWiz and will cost you at least $790.00 excluding GST.
With Pylon, you get world-class support for free and only pay a low $4 per-project fee.
Feature comparisons are accurate at time of publishing, using publicly available information.
* High resolution imagery availability varies with region
**OpenSolar does not charge for its service, but requires a Nearmap subscription for hi-res imagery.
Furthermore, OpenSolar owns all of your designs.