It means everybody's bill can be lower than if they had an additional generating facility that they only sometimes needed but still have to pay off all of the c

It means everybody's bill can be lower than if they had an additional generating facility that they only sometimes needed but still have to pay off all of the capital and maintenance costs, and possibly fuel if it is a diesel plant which is typical for small islanded systems. I think it is a victory if the community can work together to use less power when there is less supply rather then people using as much as they want and forcing rolling blackouts.