Roswell, New Mexico represents an excellent location for year-round solar energy generation, positioned in the Northern Sub Tropics at coordinates 33.3715, -104.5287. The area demonstrates strong solar production potential across all seasons, making it highly suitable for solar photovoltaic installations.

Seasonal Solar Performance

The solar energy output at this location shows impressive consistency throughout the year. Summer delivers the highest production at 7.60 kWh per day per kW of installed solar capacity, closely followed by spring at 7.18 kWh per day. Even during the lower-production seasons, autumn generates a respectable 5.41 kWh per day, while winter still produces 3.86 kWh per day per kW installed. Spring and summer represent the ideal seasons for solar generation at this location, with both seasons producing over 7 kWh per day per kW. This high seasonal performance makes Roswell particularly attractive for solar installations, as the peak production periods align well with typical high energy demand months.

Optimal Panel Configuration

For fixed panel installations at this Roswell location, the ideal tilt angle is 30 degrees facing south to maximize total year-round solar production. This angle optimization takes into account the site's latitude, seasonal sun angles, and weighted solar irradiance data to provide the best overall annual energy harvest.

Environmental Factors and Mitigation Strategies

Several environmental factors in the Roswell area can impact solar production, though most can be effectively managed with proper installation practices. Dust accumulation presents the most significant challenge in this semi-arid region. The dry climate and occasional windstorms can deposit sand and dust particles on solar panels, reducing their efficiency by blocking sunlight. Regular cleaning schedules and the installation of automated cleaning systems can help maintain optimal performance. Some installers also recommend panels with anti-soiling coatings that make dust removal easier. Hail storms, while infrequent, can occur in this part of New Mexico and pose a risk to solar panel integrity. Installing panels rated for high impact resistance and considering protective measures like hail guards can help prevent damage during severe weather events. The high desert environment means significant temperature variations between day and night, which can stress solar equipment over time. Choosing high-quality mounting systems and electrical components rated for extreme temperature cycling helps ensure long-term reliability and performance.

Additional Considerations

Wind can be another factor, as the open terrain around Roswell offers little natural windbreak protection. Proper mounting system design and secure installation techniques are essential to prevent wind damage and ensure panels remain securely attached during high wind events. Despite these challenges, the consistently high solar irradiance levels and relatively clear skies throughout most of the year make Roswell an ideal location for solar energy generation. With appropriate equipment selection and installation practices, solar systems in this location can deliver excellent long-term performance and energy production.

Note: The Northern Sub Tropics extend from 23.5° latitude North up to 35° 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 Roswell, New Mexico

Seasonal solar PV output for Latitude: 33.3715, Longitude: -104.5287 (Roswell, New Mexico, 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 30° South in Roswell, New Mexico, United States

To maximize your solar PV system's energy output in Roswell, New Mexico, United States (Lat/Long 33.3715, -104.5287) throughout the year, you should tilt your panels at an angle of 30° 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 Roswell, New Mexico, 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 Roswell, New Mexico, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 30° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
17° South in Summer	38° South in Autumn	48° South in Winter	26° 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 Roswell, New Mexico, 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 Roswell, New Mexico, 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 Roswell, New Mexico, United States

Topography Around Roswell, New Mexico

The landscape surrounding Roswell, New Mexico is characterized by relatively flat to gently rolling terrain typical of the High Plains region. The city sits at an elevation of approximately 3,600 feet above sea level on a broad plateau that extends across much of southeastern New Mexico. This elevated plain is part of the larger Llano Estacado, a vast tableland that stretches across portions of New Mexico and Texas. The topography gradually slopes from west to east, with the terrain becoming increasingly flat as it approaches the Pecos River valley. To the west of Roswell, the land rises gently toward the foothills of the Sacramento Mountains and the Lincoln National Forest, though these elevated areas remain at considerable distance from the immediate vicinity. The eastern portions of the area feature remarkably level terrain with minimal elevation changes across large expanses.

Drainage and Surface Features

The Pecos River flows north to south through the region, creating a shallow valley that represents the most significant topographical feature in the immediate area. This river valley is relatively broad and gentle, without steep canyon walls or dramatic elevation changes. Numerous arroyos and dry washes cut across the landscape, though most remain dry except during periods of heavy rainfall. The surface geology consists primarily of sedimentary rock formations covered by varying depths of soil and caliche hardpan. These geological conditions create a stable foundation with minimal concerns about ground instability or significant erosion patterns that might affect large-scale development projects.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for extensive solar photovoltaic installations would be found on the broad, flat expanses east and southeast of Roswell. These areas offer several advantages including minimal grading requirements, consistent elevation profiles, and stable geological conditions. The terrain in these directions extends for many miles with very gradual slopes, making it ideal for large solar arrays that require level ground for optimal panel positioning. The areas north and northeast of the city also present excellent opportunities, particularly where the land remains relatively flat and uninterrupted by significant drainage features. These locations benefit from being positioned on the higher portions of the plateau while maintaining the level characteristics necessary for efficient solar installation. Agricultural lands surrounding Roswell, particularly those with minimal irrigation infrastructure, could potentially be converted to solar use with relatively straightforward site preparation. The existing road network in these areas would facilitate construction and ongoing maintenance access. Areas closer to the Pecos River valley, while still relatively flat, may present occasional challenges due to flood plain considerations and slightly more variable terrain. However, locations on the terraces above the immediate river valley could still be highly suitable while avoiding potential flooding concerns. The western approaches toward the distant mountains should generally be avoided for large-scale solar development due to gradually increasing slopes and more complex terrain as elevation rises toward the foothills.

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.