On Monday, the Maine Public Utilities Commission approved new standard offer rates for 2019 which will rise 14 percent, from 8 cents per kilowatt hour to 9 cents, for most home and small-businesses that get their electricity through CMP.

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According to the Portland Press Herald, the new rates affect most Central Maine Power customers who don’t buy their electricity from a competitive supplier.

The rate hike puts the power supply rates to their highest level since 2009. The Press Herald says wholesale electricity prices in New England have been on the rise, driven in part by the cost of natural gas.

The average home electric bill for CMP customers is about $88 each month. The new standard offer rates will raise the average monthly bill to about $94.