Could you add permissions for each thing in the config?

"Solarpanel default output": X //Normal output for default player group
"Solarpanel VIP output": 
"VIP1": X,
"VIP2": X //somehow make these link with the permissions below and let admins add as many as they like? 
"Solarpanel VIP Permissions": [
"SolarVIP1.use",
"SolarVIP2.use //Links with "VIP2": X" amount. 
]

Well, the issue is the plugin looks for all electrical items and adjust them. It does not look at who created them, this would be a breaking change. Its probably possible, but not in the scope of the project.