Jaffrey, New Hampshire, located in the Northern Temperate Zone, offers varied solar energy production potential throughout the year. This location experiences significant seasonal fluctuations in solar electricity generation, which is important to understand when planning a solar PV installation.

Seasonal Solar Production

Solar panels in Jaffrey demonstrate strong performance during the warmer months but experience a substantial decline during winter. In summer, each kilowatt of installed solar capacity generates approximately 5.70 kWh per day, nearly matching the spring production of 5.34 kWh per day. However, autumn sees a significant drop to 3.22 kWh per day, while winter production falls dramatically to just 1.86 kWh per day.

This pattern creates a substantial difference between peak and low production seasons, with summer generating more than three times the electricity of winter months. Spring and summer clearly represent the optimal production periods at this location.

Optimal Panel Installation

For fixed solar panel installations in Jaffrey, the ideal tilt angle is 37 degrees facing South. This specific angle maximizes year-round solar energy production by optimizing the panel's exposure to the sun's rays across the changing seasons. This calculation accounts for Jaffrey's latitude and the Earth's elliptical orbit to find the most efficient fixed position.

Environmental Considerations

Several environmental factors may affect solar production in Jaffrey:

• Snow accumulation during New Hampshire winters can significantly reduce production by covering panels, requiring either manual clearing or installation of panels at steeper angles to promote natural snow shedding
• Tree coverage is substantial in the region, potentially creating shading issues that dramatically reduce panel efficiency even when only partially shaded
• Occasional severe weather including nor'easters and ice storms may temporarily impact system performance or require maintenance

To mitigate these challenges, consider installing panels with micro-inverters or power optimizers to minimize the impact of partial shading. Adequate tree clearing around the installation site is essential, while ensuring sufficient panel elevation and appropriate tilt can help with natural snow clearing. Regular maintenance, especially after winter storms, will help maintain optimal production levels.

Despite these seasonal challenges, Jaffrey's location still provides good overall solar potential, particularly from March through September, making it a viable location for solar PV installations with proper planning.

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 Jaffrey

Seasonal solar PV output for Latitude: 42.8192, Longitude: -72.0223 (Jaffrey, 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 Jaffrey, United States

To maximize your solar PV system's energy output in Jaffrey, United States (Lat/Long 42.8192, -72.0223) 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 Jaffrey, 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 Jaffrey, 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
26° South in Summer	47° South in Autumn	57° 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 Jaffrey, 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 Jaffrey, 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.

Topography for solar PV around Jaffrey, United States

The topography around Jaffrey, New Hampshire presents a classic New England landscape characterized by rolling hills, small mountains, and varied terrain. Situated in the Monadnock Region of southwestern New Hampshire, Jaffrey sits at the base of Mount Monadnock, which dominates the local landscape at 3,165 feet (965 meters) above sea level. This prominent peak is known for its relatively isolated position rising above the surrounding terrain, creating a distinctive silhouette visible from considerable distances. The area features a mix of gentle slopes, valleys, and uplands with elevations generally ranging from around 1,000 to 1,500 feet throughout much of the region. The terrain becomes increasingly rugged as one approaches Mount Monadnock itself. Several smaller hills and ridges create a varied topographical profile throughout the vicinity. The Contoocook River flows through the region, carving valleys and creating some flatter floodplains amid the otherwise undulating landscape. Forests cover much of the land around Jaffrey, with mixed hardwood and coniferous trees dominating the natural vegetation. Numerous small lakes, ponds, and wetlands dot the landscape, including Thorndike Pond and Gilmore Pond near Jaffrey itself. These water features occupy natural depressions in the terrain.

Solar PV Suitability in the Jaffrey Region

For large-scale solar photovoltaic (PV) installations, certain areas around Jaffrey offer more favorable conditions than others. The most suitable locations would be: The relatively flat agricultural lands and cleared areas to the east and southeast of Jaffrey center present good opportunities for solar development. These areas feature more gradual slopes and fewer forest obstacles, reducing the need for extensive clearing and grading. Former industrial sites or brownfields in the region could be repurposed for solar installations. These often provide flat, already-disturbed land that can be efficiently converted to solar use without impacting natural habitats. South-facing slopes throughout the region, particularly those with gradients between 5-15 degrees, offer enhanced solar exposure compared to flat terrain. Several such hillsides exist in the broader Jaffrey area, especially in the terrain stretching toward Rindge and Peterborough. The less rugged areas to the north and northeast toward Dublin and Marlborough include some plateaus and gentler terrain that could accommodate larger installations while avoiding the most significant elevation changes. Areas to avoid would include the steeper slopes of Mount Monadnock itself and its immediate surroundings, densely forested sections requiring substantial clearing, wetlands and riparian zones, and the more developed residential and commercial centers. The western portions of the region, with more dramatic elevation changes, generally present greater challenges for large-scale solar development than the relatively more open eastern sections. Any development would need to consider the region's seasonal snow cover, which can temporarily reduce solar production but is manageable with proper panel angles and maintenance plans. The varied terrain means that microclimate effects, including potential fog in valleys and low-lying areas, should be evaluated at specific sites being considered for development.

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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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.

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.