Do we need to pay extra fees to create 2 power platform environments?

john john 

Creating additional environments isn't specifically dependent on licensing. But it is dependent on Capacity and the only way to get extra Capacity is to purchase either per user or per app licenses. If all you have are Office licenses then you can also create additional environments using the Developer plan, since those aren't subject to Capacity constraints.

But in your case since you have at least one Premium license you may have the capacity to create multiple environments. Once they are created there is no licensing requirement for the use of apps or flows in those environments. Its all dependent on the connectors used.

The one other thing to be aware of is that SharePoint isn't aware of those environments. Your SharePoint lists will be available from all the environments. You can use environment variables and solutions to change which list the apps and flows are pointed at.

Reference: Do we need to pay extra fees to create 2 power platform environments? - Credits: Paul Stork 

Please click Mark as Best Response & Like if my post helped you to solve your issue. This will help others to find the correct solution easily. It also closes the item. If the post was useful in other ways, please consider giving it Like.