You may have noticed that your most recent electric bill is higher than usual — and if that change hasn’t happened yet, it’s probably coming this fall. These price spikes are occurring across New England, but bills are rising more in some places than others.

Some ratepayers in New Hampshire saw the price of electricity double this summer, resulting in bills up to $70 higher, while many in Massachusetts are only paying an extra $11 per month.

If it seems unfair, blame the energy markets. And if it’s confusing because everyone in New England shares an electricity grid, well, read on.

“We just have a physical constraint of how much gas we can deliver through the pipeline system to New England,” said Ben Butterworth, director of climate, energy & equity analysis at the Acadia Center.

Read the full article at WBUR here.