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Flag of United StatesSolar PV Analysis of Goffstown, United States

Graph of hourly avg kWh electricity output per kW of Solar PV installed in Goffstown, United States (by season)

Goffstown, New Hampshire, located in the Northern Temperate Zone, offers varying conditions for solar PV energy generation throughout the year. This location experiences significant seasonal fluctuations in solar energy production that potential solar adopters should consider.

Seasonal Solar Production

Solar panels in Goffstown demonstrate strong performance during summer months, generating approximately 5.69 kWh per day for each kilowatt of installed capacity. Spring follows closely with 5.18 kWh/day per kW. However, production drops considerably during autumn to 3.11 kWh/day and reaches its lowest point in winter at just 1.82 kWh/day per kW of installed capacity.

The substantial difference between summer and winter production (nearly a 70% decrease) reflects the typical seasonal pattern for northern New England locations. May through August represent prime solar harvesting months, while November through February yield significantly less energy.

Optimal Installation Angle

For fixed solar panel installations in Goffstown, the ideal tilt angle to maximize year-round energy production is 37 degrees facing South. This carefully calculated angle balances seasonal solar elevation changes throughout the year to optimize total annual electricity generation.

Environmental and Weather Considerations

Several significant factors can affect solar production in Goffstown:

  • Snow accumulation during New Hampshire winters can temporarily reduce or eliminate production until panels clear
  • Tree coverage is substantial in the region and can create shading issues if not properly addressed during installation
  • Occasional severe weather including nor'easters and ice storms may impact system integrity

To mitigate these challenges, solar installations in Goffstown should incorporate several preventative measures. Panels can be installed at slightly steeper angles than the optimal 37 degrees if winter production is particularly important, as this promotes snow shedding. Regular tree maintenance around the installation area prevents shading issues as surrounding vegetation grows. Additionally, high-quality mounting systems rated for local wind and snow loads ensure system durability during severe weather events.

Overall, while Goffstown isn't ideal for year-round solar production due to its pronounced seasonal variations, properly designed systems can still provide substantial energy generation, particularly during the productive spring and summer months.

Note: The Northern Temperate Zone extends from 35° latitude North up to 66.5° latitude.

So far, we have conducted calculations to evaluate the solar photovoltaic (PV) potential in 4253 locations across the United States. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.

Link: Solar PV potential in the United States by location

Solar output per kW of installed solar PV by season in Goffstown

Seasonal solar PV output for Latitude: 43.0204, Longitude: -71.6004 (Goffstown, United States), based on our analysis of 8760 hourly intervals of solar and meteorological data (one whole year) retrieved for that set of coordinates/location from NASA POWER (The Prediction of Worldwide Energy Resources) API:

Summer
Average 5.69kWh/day in Summer.
Autumn
Average 3.11kWh/day in Autumn.
Winter
Average 1.82kWh/day in Winter.
Spring
Average 5.18kWh/day in Spring.

 

Ideally tilt fixed solar panels 37° South in Goffstown, United States

To maximize your solar PV system's energy output in Goffstown, United States (Lat/Long 43.0204, -71.6004) throughout the year, you should tilt your panels at an angle of 37° South for fixed panel installations.

As the Earth revolves around the Sun each year, the maximum angle of elevation of the Sun varies by +/- 23.45 degrees from its equinox elevation angle for a particular latitude. Finding the exact optimal angle to maximise solar PV production throughout the year can be challenging, but with careful consideration of historical solar energy and meteorological data for a certain location, it can be done precisely.

We use our own calculation, which incorporates NASA solar and meteorological data for the exact Lat/Long coordinates, to determine the ideal tilt angle of a solar panel that will yield maximum annual solar output. We calculate the optimal angle for each day of the year, taking into account its contribution to the yearly total PV potential at that specific location.

The sun
At Latitude: 43.0204, Longitude: -71.6004, the ideal angle to tilt panels is 37° South

Seasonally adjusted solar panel tilt angles for Goffstown, United States

If you can adjust the tilt angle of your solar PV panels, please refer to the seasonal tilt angles below for optimal solar energy production in Goffstown, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 37° South tilt angle throughout the year.

Overall Best Summer Angle Overall Best Autumn Angle Overall Best Winter Angle Overall Best Spring Angle
27° South in Summer 47° South in Autumn 58° South in Winter 36° South in Spring

Assuming you can modify the tilt angle of your solar PV panels throughout the year, you can optimize your solar generation in Goffstown, United States as follows: In Summer, set the angle of your panels to 27° facing South. In Autumn, tilt panels to 47° facing South for maximum generation. During Winter, adjust your solar panels to a 58° angle towards the South for optimal energy production. Lastly, in Spring, position your panels at a 36° angle facing South to capture the most solar energy in Goffstown, United States.

Our recommendations take into account more than just latitude and Earth's position in its elliptical orbit around the Sun. We also incorporate historical solar and meteorological data from NASA's Prediction of Worldwide Energy Resources (POWER) API to assign a weight to each ideal angle for each day based on its historical contribution to overall solar PV potential during a specific season.

This approach allows us to provide much more accurate recommendations than relying solely on latitude, as it considers unique weather conditions in different locations sharing the same latitude worldwide.

Calculate solar panel row spacing in Goffstown, United States

We've added a feature to calculate minimum solar panel row spacing by location. Enter your panel size and orientation below to get the minimum spacing in Goffstown, United States.

Our calculation method

  1. Solar Position:
    We determine the Sun's position on the Winter solstice using the location's latitude and solar declination.
  2. Shadow Projection:
    We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle.
  3. Minimum Spacing:
    We add the shadow length to the horizontal space occupied by tilted panels.

This approach ensures maximum space efficiency while avoiding shading during critical times, as the Winter solstice represents the worst-case scenario for shadow length.






Please enter information above to calculate panel spacing.

Topography for solar PV around Goffstown, United States

Goffstown, located in southern New Hampshire, sits within a landscape characterized by gentle to moderate rolling hills, typical of New England's terrain. The town lies in the Merrimack Valley region, with the Piscataquog River flowing through its center. The topography around Goffstown features elevations generally ranging from approximately 300 to 700 feet above sea level, creating a varied landscape with numerous small valleys and ridgelines. To the north and west of Goffstown, the terrain becomes more pronounced with higher hills and small mountains, including the southern foothills of the Uncanoonuc Mountains. These twin peaks, though modest in height by mountain standards, are prominent local landmarks rising to about 1,300 feet. The eastern portions of Goffstown transition to the somewhat flatter terrain of the Merrimack River valley as one moves toward Manchester. The area contains a mix of forested land, open fields, and developed areas. Approximately 60-70% of the surrounding region remains wooded, with deciduous and mixed forests dominating the landscape. These forests cover many of the hillsides and create natural boundaries between developed areas.

Solar PV Potential Areas

For large-scale solar photovoltaic installations, several areas around Goffstown present favorable conditions. The most suitable locations would be: The southern and southeastern facing slopes of the gentler hills provide ideal orientation for solar collection. These areas receive consistent sun exposure throughout the day, particularly during winter months when the sun is lower in the southern sky. Several such slopes exist in the southern portions of Goffstown and in neighboring Bedford. Former agricultural lands that have been cleared but are not currently in productive use represent excellent opportunities for solar development. These areas typically have minimal shading concerns and often have relatively flat or gently sloping terrain that reduces installation costs. Several such parcels exist in the southwestern and eastern sections of Goffstown. Reclaimed or unused commercial and industrial properties, particularly those along major transportation corridors like NH-114 and NH-13, offer potential for solar development without impacting undisturbed natural areas. These locations often have existing infrastructure connections that can reduce development costs. The relatively flat areas in the eastern portions of Goffstown, where the terrain transitions toward the Merrimack River valley, provide good conditions for large-scale installations with minimal grading requirements. These areas generally have fewer tall trees and natural obstacles that could create shading issues. Areas to avoid would include the steeper western slopes of hills, heavily forested sections requiring significant clearing, wetlands associated with the Piscataquog River system, and the more densely developed central portions of Goffstown. The northern sections, with more pronounced hills and greater forest cover, would generally present more challenges for large-scale solar development due to increased shading and construction complexity.

United States solar PV Stats as a country

United States ranks 2nd in the world for cumulative solar PV capacity, with 95,209 total MW's of solar PV installed. This means that 3.40% of United States's total energy as a country comes from solar PV (that's 26th in the world). Each year United States is generating 289 Watts from solar PV per capita (United States ranks 15th in the world for solar PV Watts generated per capita). [source]

Are there incentives for businesses to install solar in United States?

Yes, there are several incentives for businesses wanting to install solar energy in the United States. These include federal tax credits, state and local rebates, net metering policies, and renewable energy certificates (RECs). Additionally, many states have enacted legislation that requires utilities to purchase a certain amount of electricity from renewable sources such as solar.

Do you have more up to date information than this on incentives towards solar PV projects in United States? Please reach out to us and help us keep this information current. Thanks!

Citation Guide

Article Details for Citation

Article: Solar PV Analysis of Goffstown, United States
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Saturday 24th of May 2025
Last Updated: Thursday 4th of December 2025

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Compare this location to others worldwide for solar PV potential

The solar PV analyses available on our website, including this one, are offered as a free service to the global community. Our aim is to provide education and aid informed decision-making regarding solar PV installations.

However, please note that these analyses are general guidance and may not meet specific project requirements. For in-depth, tailored forecasts and analysis crucial for feasibility studies or when pursuing maximum ROI from your solar projects, feel free to contact us; we offer comprehensive consulting services expressly for this purpose.

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