Hooksett, New Hampshire, located in the Northern Temperate Zone, presents a moderately suitable location for year-round solar energy generation, though with significant seasonal variations that are typical for this latitude.
Seasonal Solar Production Patterns
The solar energy output at this location shows dramatic seasonal swings. Summer production peaks at 5.69 kWh per day per kW of installed solar capacity, making it the most productive season. Spring follows closely with 5.19 kWh per day, representing excellent generation potential during these warmer months. However, the location experiences substantial drops in solar production during colder seasons. Autumn generates 3.11 kWh per day, while winter production falls to just 1.84 kWh per day per kW installed. This winter figure represents less than one-third of summer production, highlighting the challenges of northern latitude solar installations.Optimal Installation Configuration
For maximum year-round energy production at Hooksett, solar panels should be installed at a fixed tilt angle of 37 degrees facing south. This angle is calculated to optimize total annual output by accounting for the sun's changing position throughout the year and weighting for actual solar irradiance data.Local Factors Affecting Solar Production
Several environmental and weather factors in Hooksett can significantly impact solar energy generation:- Snow accumulation: New Hampshire's heavy winter snowfall can completely block solar panels, eliminating production for days or weeks
- Ice formation: Freezing rain and ice storms common in the region can coat panels and reduce efficiency
- Cloud cover: The area experiences frequent overcast conditions, particularly during winter months
- Deciduous tree coverage: New Hampshire's dense forests mean many properties have mature trees that can create seasonal shading
Preventative Measures for Enhanced Production
Several installation strategies can help mitigate these local challenges: Installing panels at the optimal 37-degree tilt helps snow slide off more easily compared to flatter installations. Adding snow guards or heating elements can further assist with snow removal, though the cost-benefit should be carefully evaluated. Proper site selection during installation is crucial. Panels should be positioned away from areas where trees cast shadows, particularly during the lower sun angles of winter and early spring. Sometimes selective tree trimming may be necessary. Using micro-inverters or power optimizers instead of traditional string inverters can minimize the impact when individual panels are partially shaded or snow-covered, allowing unaffected panels to continue producing at full capacity. Regular maintenance becomes especially important in this climate. Scheduling periodic cleaning and inspection, particularly after major weather events, helps ensure panels operate at peak efficiency throughout the challenging winter 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 Hooksett
Seasonal solar PV output for Latitude: 43.0968, Longitude: -71.4651 (Hooksett, 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:
 
Ideally tilt fixed solar panels 37° South in Hooksett, United States
To maximize your solar PV system's energy output in Hooksett, United States (Lat/Long 43.0968, -71.4651) 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.
Seasonally adjusted solar panel tilt angles for Hooksett, 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 Hooksett, 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 |
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 Hooksett, 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 Hooksett, United States.
Our calculation method
- Solar Position:
We determine the Sun's position on the Winter solstice using the location's latitude and solar declination. - Shadow Projection:
We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle. - 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.
Topography for solar PV around Hooksett, United States
Topographical Features Around Hooksett
Hooksett sits in the Merrimack River Valley of south-central New Hampshire, positioned along the western bank of the Merrimack River. The landscape around this area is characterized by gently rolling hills and relatively modest elevation changes typical of New England's glacially-carved terrain. The town itself occupies elevations ranging from approximately 200 to 400 feet above sea level, with the river valley representing the lowest points and the surrounding hills creating a bowl-like topography. The Merrimack River flows north to south through the eastern portion of the area, creating a natural corridor of flatter terrain along its banks. Moving westward from the river, the land gradually rises through a series of low ridges and valleys that were shaped by glacial activity thousands of years ago. These hills are generally rounded rather than steep, with slopes that rarely exceed 15-20 degrees except in localized areas near stream cuts or rocky outcrops. The region features a mix of forested hills, cleared agricultural land, and developed areas. Much of the higher elevation terrain remains wooded with mixed hardwood and softwood forests, while the lower elevations and gentler slopes have been historically cleared for farming, residential development, and commercial use. The soil composition varies from sandy loams in the river valley to rockier, less fertile soils on the hillsides.Optimal Areas for Large-Scale Solar Development
The most promising locations for substantial solar photovoltaic installations around Hooksett would be the gently sloping agricultural fields and cleared areas on the south and southeast-facing hillsides. These locations offer the ideal combination of suitable terrain, good solar exposure, and minimal environmental impact. The moderate slopes provide natural drainage while maintaining accessibility for construction and maintenance equipment. Areas of particular interest include the cleared farmland and former agricultural parcels scattered throughout the rolling hills west and southwest of the town center. These sites typically feature slopes between 5-15 degrees, which are steep enough to optimize panel positioning while remaining gentle enough for cost-effective installation. The existing cleared nature of these lands reduces environmental concerns and development costs compared to forested alternatives. The river valley floor itself, while flat and easily accessible, may present challenges due to potential flooding concerns and the presence of wetlands associated with the Merrimack River system. However, some elevated portions of the valley floor that are well-drained and not subject to flood risk could serve as viable locations for ground-mounted solar arrays. Former gravel pits and disturbed industrial sites in the area also represent excellent opportunities for solar development. These locations often feature level or gently graded terrain with existing road access and minimal environmental sensitivity. The previously disturbed nature of such sites makes them particularly attractive from a permitting and environmental impact perspective. The key consideration for any large-scale solar development in this region is balancing the topographical advantages of south-facing slopes with practical factors such as grid connectivity, road access, and distance from residential areas. The rolling nature of the landscape provides numerous suitable sites, but careful site selection can optimize both solar generation potential and development feasibility.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!
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Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Friday 1st of August 2025
Last Updated: Friday 8th of August 2025
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Compare this location to others worldwide for solar PV potential
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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.
Helping you assess viability of solar PV for your site
Calculate Your Optimal Solar Panel Tilt Angle: A Comprehensive Guide
Enhance your solar panel's performance with our in-depth guide. Determine the best tilt angle using hard data, debunk common misunderstandings, and gain insight into how your specific location affects solar energy production.




