I had thought Hybrid2 - the simulation tool - is free. Whenever I want to install it on my laptop a password and username with email are required. Which are the ones?
According to the official website, the password for the software's installation is hibrida. You need to enter your name and the email you used to download the application. I have done the same and was able to download and install the application normally without errors.
Download page: http://www.umass.edu/windenergy/research/topics/tools/software/hybrid2