OpenSolar is a good starting point for many solar installers, but you will soon find that there are a few features missing that 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.
Lastly, Pylon is beautifully designed for efficiency. Most users find that it takes less than 2 minutes to design an accurate solar quote. Pylon proposals are designed to convert with e-signatures and payment gateways built in to boost conversion rates.