Residential electricity prices in Mendham, NJ in August 2025 averaged approximately 24.96 cents per kilowatthour (¢/kWh), which was about 42% more than the national average rate of 17.62 ¢/kWh (August 2025). [1]
→ Electricity rates listed as zero are not currently available.
See how electricity costs in Mendham differ from the average electricity costs for the U.S. overall. [1]
On a year-over-year basis - from July 2024 to July 2025 - residential electricity prices in Mendham increased approximately 22%, from 20.70 ¢/kWh to 25.32 ¢/kWh. [1]
→ Electricity rates listed as zero are not currently available.
Residential natural gas prices in Mendham in August 2025 averaged 18.78 dollars per thousand cubic feet ($/Mcf), which was approximately 30% less than the national average rate of 26.88 $/Mcf (August 2025). [2]
→ Natural gas prices listed as zero are not currently available.
See the chart below to see a comparison of Mendham natural gas prices against U.S. average prices. Compare Mendham natural gas costs to overall U.S. average costs. [2]
On a year-over-year basis, residential natural gas prices in Mendham (New Jersey) increased approximately 10%, from 16.46 $/Mcf (July 2024) to 18.15 $/Mcf (July 2025). [2]
→ Natural gas prices listed as zero are not currently available.
The borough of Mendham (New Jersey) has an average annual solar radiation value of 4.86 kilowatt hours per square meter per day (kWh/m2/day). Compare Mendham values to both low and high values in the U.S. overall: [3]
→ Solar radiation values listed as zero are not currently available.
See the chart below for a comparison of Mendham solar radiation levels against other areas in the U.S. Compare Mendham levels against both 1) low average solar radition levels (WA) and also 2) high average solar radiation levels (NV). [3]
→ k/m/d: kilowatt hours per square meter per day.
→ Solar radiation values listed as zero are not currently available.
Households in the United States have benefited from falling energy prices in recent years, which has driven down the cost of living.
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Penn State researchers recently examined microgrids and discovered that they may not always be a wise economic move for communities.
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Through the analysis of publicly available data filed by electricity suppliers, the CT OCC discovered that electricity customers overpaid by $58 million in 2015.
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The borough of Mendham, NJ in Morris County has an approximate population of 4,981. [4]
To learn more about utility rates & usage in Mendham, NJ, or for other information related to utilities in Mendham, visit the U.S. Energy Information Administration.
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