To the right (or below if you’re using a smart phone) is the free version of the Solar Wizard solar calculator. Only residential is included in this free version, you can’t change the logo, and there are other limitations to the free edition, so we wouldn’t want to use it as is. However if you like how it works and the results it produces for residential, it may be worth the $35/month for the pro version. FYI I turned off email notifications for initial testing since you’re more interested in whether it’ll give good results than if it can send emails.
You’ll need to enter some settings first that are relevant for EcoMark. Use your admin login, go to Solar Wizard on the left and Settings. I would not worry with colors and style for the free version, only functionality and results. Set the numbers on the residential tab, come back here and refresh this page, enter info as if you were a potential customer, and see how it works for you.