Ennis, Texas presents a reasonably good location for year-round solar energy generation, though with notable seasonal variations typical of its Northern Sub-Tropical climate zone.

Seasonal Solar Performance

The solar energy output at this location shows strong seasonal patterns. Summer delivers the highest production at 6.85 kWh per day per installed kilowatt, making it the prime season for solar generation. Spring follows as the second-best period with 5.30 kWh daily output, while autumn drops to 4.89 kWh per day. Winter presents the most challenging conditions with only 3.00 kWh daily production per kilowatt of installed capacity. This seasonal variation means that summer and spring are the ideal times for solar generation at Ennis, providing roughly double the energy output compared to winter months. The location experiences a fairly typical pattern for its latitude, with strong performance during the longer, sunnier months.

Optimal Panel Installation

For maximum year-round energy production at Ennis, solar panels should be installed at a fixed tilt angle of 29 degrees facing south. This angle has been calculated to optimize total annual output by accounting for the sun's changing position throughout the year and weighting the angles based on actual solar irradiance data.

Local Environmental Factors

Several environmental and weather factors in the Ennis area can impact solar panel performance and require consideration during installation:

• Severe Weather: Texas is prone to hailstorms, high winds, and occasional tornadoes that can damage solar installations
• Dust and Pollen: The region experiences significant dust accumulation and heavy pollen seasons that can reduce panel efficiency
• High Summer Temperatures: Extreme heat can reduce panel efficiency and stress system components
• Humidity and Moisture: The sub-tropical climate brings high humidity and occasional heavy rainfall

Preventative Measures for Better Performance

To maximize solar energy production despite these challenges, several installation strategies should be considered:

• Impact-Resistant Panels: Choose panels rated for hail impact and high wind loads to withstand severe weather
• Proper Mounting: Use robust mounting systems engineered for high wind zones and ensure adequate structural support
• Easy Cleaning Access: Design installations with safe access for regular cleaning to remove dust and pollen buildup
• Adequate Ventilation: Allow proper airflow behind panels to reduce heat buildup and maintain efficiency during hot summers
• Quality Inverters: Install inverters in shaded, well-ventilated locations to protect them from extreme temperatures
• Regular Maintenance Schedule: Plan for quarterly cleaning and annual system inspections to maintain optimal performance

Overall, while Ennis faces some environmental challenges common to Texas, proper installation techniques and regular maintenance can help ensure reliable solar energy production throughout the year.

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 Ennis

Seasonal solar PV output for Latitude: 32.3322, Longitude: -96.6206 (Ennis, 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 29° South in Ennis, United States

To maximize your solar PV system's energy output in Ennis, United States (Lat/Long 32.3322, -96.6206) throughout the year, you should tilt your panels at an angle of 29° 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 Ennis, 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 Ennis, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 29° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
16° South in Summer	37° 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 Ennis, 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 Ennis, 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 Ennis, United States

Topography Around Ennis, Texas

The terrain surrounding Ennis, Texas presents a predominantly flat to gently rolling landscape characteristic of the North Central Texas region. This area sits within the Blackland Prairie ecoregion, where the topography consists of broad, sweeping plains with minimal elevation changes. The land gradually slopes from northwest to southeast, with elevations typically ranging between 500 and 700 feet above sea level. Rolling hills occasionally break up the otherwise level terrain, creating a subtle undulating pattern across the countryside. These gentle rises and shallow valleys are remnants of ancient geological processes that shaped the region over millions of years. The soil composition primarily consists of dark, clay-rich blackland prairie soils that were formed from underlying limestone and shale bedrock. Several small creeks and tributaries meander through the area, including Waxahachie Creek and its various branches. These waterways have carved shallow channels through the landscape, creating minor topographical variations but nothing that significantly alters the overall flat character of the region. The drainage patterns generally flow eastward toward larger river systems.

Optimal Areas for Large-Scale Solar Development

The expansive flat agricultural lands stretching east and southeast of Ennis represent the most promising locations for large-scale solar photovoltaic installations. These areas offer vast open spaces with minimal topographical obstacles, allowing for efficient panel placement and maintenance access. The relatively level terrain reduces grading costs and simplifies the installation process for utility-scale solar farms. Agricultural fields that extend toward the communities of Corsicana and Palestine direction provide particularly suitable conditions. The gentle southeast-facing slopes in this region offer natural advantages for solar panel orientation while maintaining the accessibility benefits of relatively flat terrain. These areas typically feature fewer trees and existing structures that might create shading issues. The northwestern quadrant around Ennis also presents viable opportunities, especially in areas where the land transitions from residential development to open agricultural use. However, the southeastern sectors generally offer superior conditions due to their combination of optimal topography, land availability, and distance from urban development that might impose height restrictions or other regulatory constraints. Areas immediately adjacent to existing electrical transmission infrastructure would be particularly advantageous for large-scale solar development. The relatively uniform topography throughout the region means that most locations can accommodate solar installations from a terrain perspective, making factors like grid connectivity and land acquisition costs more decisive in site selection.

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.