Mainers will see higher electricity rates with utility regulators approving new standard offer rates for next year.

The Maine Public Utilities Commission announced Wednesday that the average Central Maine Power customer will see the supply side of their monthly bills go up by about $11 after Jan. 1.

Versant Power residential customers will face an average increase of about $16 a month.

The standard offer is selected for customers by default if they don’t purchase electricity from an alternative supplier.

Those rates are not set by Central Maine Power or Versant Power, which only distribute electricity.

The news comes a day after the Maine PUC rejected CMP’s proposal for a five-year plan that would have led to an increase of about $35 for the average residential customer.

The plan called for a $1 billion investment to improve infrastructure and bring on more workers.

The commission said a rate increase is not out of the question, but the one rejected on Tuesday raised concerns about affordability.

CMP is expected to propose an alternative plan.