Why Your PSEG Long Island Bill Keeps Jumping, and What It Means for Your Monthly Budget
*The part of your electric bill that swings the most is not the part PSEG controls, and it can throw off a household budget fast.*
If you are penciling out what a home actually costs you each month on Long Island, the electric bill deserves more attention than it usually gets. Most buyers and owners budget for a mortgage, taxes, and insurance, then treat utilities as an afterthought. That habit gets expensive here.
The charge that actually moves
PSEG Long Island bills are split into two main pieces. One is the Delivery Charge, which pays for the wires and the grid, and that part has stayed close to flat through 2026. The other piece is the Power Supply Charge, which covers the cost of fuel and electricity PSEG buys on your behalf, mostly natural gas burned at Long Island power plants it does not own.
That supply charge is a straight pass through, and PSEG says monthly changes mostly reflect the gap between what it projected costs would be and what they turned out to be. In practice that means it can move a lot from one billing cycle to the next. The rate rose 13.23 percent in February 2026, another 12.7 percent in March, then jumped 20.14 percent in September to reach just under 14 cents per kilowatt hour.
For context, PSEG's own posted numbers confirm the September 2026 rate at $0.139822 per kWh, a jump of more than two cents from August. A move like that on a bill you thought was settled can undo a chunk of a monthly budget in one statement.
What it costs a real household
Run the math on a typical home and the swings add up. One estimate puts the average Long Island residential rate around 24 to 27 cents per kilowatt hour, and for a household using about 1,100 kWh a month, a rate increase in that range adds more than $360 a year with no change in how much power anyone actually used.
If you are on the standard Time of Day plan, the timing of your usage matters too. Electricity used on weekdays between 3pm and 7pm in September has been running close to 49 cents all in, compared with roughly 23 cents the rest of the day. A household that runs the air conditioner or does laundry right after work is paying a real premium for that habit, separate from any rate hike.
Building it into your number
When you are figuring out what you can actually afford to pay each month on a Long Island home, do not treat the electric bill as a fixed line item. Look at a full year of past bills for a property, not just one month, since the supply charge has swung by double digits several times in a single year. A summer bill and a winter bill can look like they belong to two different houses.
If you are shopping for a home, ask the seller or the listing agent for twelve months of PSEG statements rather than one recent bill. If you already own here, checking the current Power Supply Charge posted on PSEG's rate page each month is a quick way to see whether a spike coming up is your usage or the pass through charge doing the work.
None of this is a reason to panic about buying or staying put. It is a reason to build a little more room into your monthly number than a mortgage calculator alone will show you.
If you want to talk through what a real monthly budget looks like for a specific house or neighborhood, drop a question at /askmuds, or check what your current home might be worth at /my-home-value/.