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Location: Portsmouth, NH

Portsmouth is the only city in Rockingham County, NH. It is home to 21,233 residents as of the 2010 US census. Portsmouth became energy deregulated in 1996 when New Hampshire passed RSA 374-F. The goal of energy deregulation was to create price competition between utilities and retail energy providers. However, as of today, New Hampshire still has some of the highest electricity rates in the nation. For more information on Portsmouth energy source, usage, solar potential, and electricity rates, see the information below.

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Usage for Portsmouth, New Hampshire

Monthly average household energy usage in NH compared to the national average.

Solar Score for Portsmouth, NH

Portsmouth, NH Solar Score: 35

Compare Electricity has developed a solar score for New Hampshire residents and businesses of 19/100. The score is based on on a combination of factors including how much sun the area receives, roof space and obstacles that may obstruct the sun, electricity generation needed to be cost-effective, and more. Here is a description of each section of the solar score graph:

  • Red = “Not Viable” meaning a solar installation would not be cost-effective.
  • Yellow = “Viable” meaning a solar installation would pay for itself over time.
  • Green = “Very Viable” meaning a solar installation would pay for itself quickly and has large savings potential.

Sources for Portsmouth, NH

New Hampshire produces energy from a variety of sources. Here are the state’s current energy sources and energy production trends.

  • New Hampshire has no fossil fuels, all fossil fuels used in NH are imported
  • New Hampshire has the largest nuclear energy plant in the northeast
  • Biomass accounts for nearly half of all renewable energy generate in New Hampshire
  • Natural gas usage has nearly doubled in the last decade


Looking for a specific city in New Hampshire? Check out our featured cities below for more specific energy usage information.


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