Moulton, Alabama, located in the Northern Sub Tropics at coordinates 34.4812, -87.2934, offers a moderately good location for year-round solar energy generation, though with notable seasonal variations that potential solar installers should understand.

Seasonal Solar Performance

The solar energy output at this location varies significantly throughout the year. Summer provides the strongest performance at 6.12 kWh per day per kW of installed solar capacity, making it the peak season for solar generation. Spring follows closely behind with 5.85 kWh per day per kW, offering nearly as much energy production as summer months. Autumn shows a moderate decline to 4.35 kWh per day per kW, while winter presents the most challenging period with only 2.69 kWh per day per kW of installed capacity. This winter figure represents less than half the summer production, highlighting the importance of planning for seasonal energy storage or grid connection. The ideal times for solar generation at this Moulton location are clearly summer and spring, when the combination of longer days and higher sun angles maximizes energy output. These seasons account for the majority of annual solar energy production potential.

Optimal Panel Installation

For fixed panel installations at this location, the ideal angle to tilt panels to maximize total year-round production is 30 degrees facing South. This angle is calculated by analyzing daily solar elevation angles at this latitude, determining optimal panel tilt angles, and weighting these angles by daily photovoltaic potential using solar irradiance data while accounting for Earth's elliptical orbit.

Local Factors Affecting Solar Production

Several environmental and weather factors in the Moulton, Alabama region can impact solar energy production:

• High humidity levels typical of the Northern Sub Tropics can reduce solar panel efficiency and create more frequent cloud cover
• Thunderstorms and severe weather events common in Alabama can temporarily reduce solar output and potentially damage equipment
• Dust and pollen accumulation, particularly during spring months, can coat panels and reduce their effectiveness
• Ice storms, though infrequent, can occur in winter and temporarily block solar panels

Preventative Measures for Better Solar Performance

To maximize solar energy production despite these local challenges, several preventative measures should be considered during installation: Regular cleaning systems or accessible panel designs allow for easy removal of dust, pollen, and debris that accumulate on panel surfaces. Installing panels with adequate spacing and ventilation helps combat efficiency losses from high humidity and heat. Robust mounting systems designed to withstand severe weather, including high winds and potential hail, protect the investment and maintain consistent energy production. Consider micro-inverters or power optimizers that can minimize the impact when individual panels are shaded or dirty. Strategic placement away from large trees reduces both shading issues and the accumulation of organic debris, while also minimizing risks from falling branches during storms. Installing a monitoring system helps identify performance issues quickly, allowing for prompt maintenance that keeps the system operating at peak efficiency. Despite these regional challenges, Moulton's location still provides reasonable solar energy potential, particularly during the warmer months when energy demand for cooling is typically highest.

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 Moulton

Seasonal solar PV output for Latitude: 34.4812, Longitude: -87.2934 (Moulton, 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 Moulton, United States

To maximize your solar PV system's energy output in Moulton, United States (Lat/Long 34.4812, -87.2934) 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 Moulton, 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 Moulton, 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
18° South in Summer	39° South in Autumn	50° South in Winter	27° 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 Moulton, 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 Moulton, 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 Moulton, United States

Topographical Features of the Moulton Area

Moulton, Alabama sits within the Tennessee River Valley region of north-central Alabama, characterized by gently rolling hills and relatively modest elevation changes. The surrounding landscape features the typical topography of the Tennessee Valley, with elevations generally ranging from 500 to 800 feet above sea level. The terrain consists primarily of low ridges separated by broad valleys, creating a moderately undulating landscape that slopes gradually toward the Tennessee River system to the north.

The area around Moulton is part of the Highland Rim physiographic region, which transitions into the Tennessee Valley. This creates a mixed topographical environment with some higher ridgelines running roughly east-west, interspersed with flatter valley floors and gentle slopes. The local relief is generally moderate, with most slopes being gradual rather than steep, making much of the surrounding countryside accessible for development purposes.

Agricultural land dominates the immediate vicinity of Moulton, with large fields and pastures occupying the flatter areas and gentler slopes. These agricultural areas typically feature open terrain with minimal tree cover, providing excellent exposure to the sky. The region's topography has been shaped by centuries of farming, resulting in cleared fields that extend across rolling hills and valley bottoms.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for large-scale solar photovoltaic installations around Moulton would be the extensive agricultural areas that occupy the flatter valley floors and gentle south-facing slopes. These areas offer the ideal combination of minimal topographical obstacles, existing cleared land, and favorable orientation for solar collection. The broad valley floors particularly stand out as prime candidates, as they provide large contiguous areas of relatively flat terrain that would minimize grading and installation costs.

South-facing slopes with gradients of less than 10 degrees present excellent opportunities for solar development, as the natural slope can actually enhance solar collection efficiency when properly oriented. Many of the rolling hills around Moulton feature such gentle southern exposures, particularly in the agricultural areas where the land has already been cleared and maintained as open space.

The extensive farmland surrounding Moulton represents perhaps the greatest asset for solar development in the region. These areas typically feature large, unobstructed parcels with minimal shading from trees or structures. The agricultural nature of the land also means that much of it is already accessible by farm roads, which could facilitate construction and maintenance access for solar installations.

Areas to the south and southwest of Moulton appear particularly well-suited for solar development, as they combine favorable topography with extensive cleared agricultural land. The relatively flat to gently rolling terrain in these directions would allow for efficient panel placement and minimal site preparation costs. Additionally, the open agricultural landscape in these areas provides the kind of large, contiguous parcels that are essential for utility-scale solar projects.

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.