New single sign-on for EnergyPlus and OpenStudio

In conjunction with the launch of a new feature voting site for both EnergyPlus and OpenStudio, will move to a single sign-on solution. Beginning August 10th, your OpenStudio credentials will be transferred to the site, and will allow you to login to both and, as well as the feature voting sites. The BCL will also be moving to the same sign-on solution in the near future. This change will simplify the login process by reducing the number of passwords you need to access these various tools.
If you already have an account, you will not need to create a new account. When clicking on the ‘Log in’ button, you will be redirected to, where you will enter your OpenStudio credentials. Upon a successful login, you will then be redirected back to If you do not remember your password, click on the ‘Request New Password’ tab on the login page.