Do I need to create a profile and sign in and use the enervee/ca marketplace?

Nope. There’s no need to create a profile or sign in: anyone can visit enervee/ca marketplace and make use of the information. However, if you want to you’re your searches, mark your favorite products and receive price alerts and buying guides that describe and show ways to save energy and money, then you would need to create a profile and sign-in.