While building power lines and upgrading other electrical transmission equipment isn't sexy, those types of projects — along with lower natural gas prices — sure can impact an electricity bill in a positive way.

More than 650,000 residential customers of Oklahoma Gas and Electric Co. will see that impact starting next month, when the utility will make what is the largest recent cut in the price of electricity it delivers to them through a fuel-cost adjustment.

Utility officials announced Wednesday they expect monthly bills will decline by $13.34 a month for an average OG&E residential customer in Oklahoma. The reduction will go into effect the first billing cycle in April.

Because the fuel cost is calculated on kilowatt-per-hour basis, that amount will vary based on the amount of power each customer uses.