Apex, North Carolina, located in the Northern Temperate Zone, offers a reasonably good location for solar PV energy generation throughout the year. The seasonal variations in electricity output demonstrate the potential for solar power in this area, with higher production during summer and spring months.

Seasonal Solar Performance

Summer stands out as the peak season for solar energy production in Apex, with an impressive 6.60 kWh per day for each kilowatt of installed solar capacity. Spring follows closely behind, generating 6.03 kWh/day. These seasons provide ideal conditions for maximizing solar output.

Autumn sees a moderate decrease in production, yielding 4.42 kWh/day. Winter experiences the lowest output at 2.75 kWh/day, which is expected due to shorter days and lower sun angles. Despite this seasonal dip, the overall year-round performance remains favorable for solar energy generation.

Optimizing Solar Panel Installation

To maximize year-round solar production in Apex, fixed solar panels should be tilted at a 31-degree angle facing south. This optimal angle ensures the panels capture the most sunlight throughout the year, accounting for the Earth's elliptical orbit and the location's specific latitude.

Environmental and Weather Considerations

While Apex generally offers favorable conditions for solar energy production, there are some factors to consider:

• Occasional severe weather events, such as hurricanes or thunderstorms, may temporarily impact solar production.
• Tree coverage in some areas could potentially cast shadows on solar panels, reducing their efficiency.

To mitigate these factors, consider installing panels on higher ground or rooftops to avoid potential flooding. Regular tree maintenance and strategic panel placement can help minimize shading issues. Additionally, using durable, high-quality solar equipment can enhance resilience against severe weather conditions.

Overall, Apex, North Carolina, presents a suitable location for solar PV energy generation, with strong performance during summer and spring months and acceptable output throughout the year. With proper installation and maintenance, solar panels can provide a reliable source of renewable energy in this area.

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 Apex

Seasonal solar PV output for Latitude: 35.7178, Longitude: -78.8428 (Apex, 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 31° South in Apex, United States

To maximize your solar PV system's energy output in Apex, United States (Lat/Long 35.7178, -78.8428) throughout the year, you should tilt your panels at an angle of 31° 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 Apex, 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 Apex, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 31° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
20° South in Summer	41° South in Autumn	51° South in Winter	28° 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 Apex, 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 Apex, 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 Apex, United States

The topography around Apex, North Carolina, located at approximately 35.7178°N latitude and 78.8428°W longitude, is characterized by gently rolling hills and moderate elevation changes typical of the Piedmont region. This area sits between the coastal plains to the east and the Appalachian Mountains to the west, resulting in a landscape that is neither flat nor mountainous. The terrain around Apex features a mix of low hills, shallow valleys, and small streams. The elevation in this area generally ranges from about 150 to 500 feet above sea level, with gradual slopes rather than steep inclines. This topography is the result of millions of years of erosion, which has worn down the once-mountainous landscape into its current, more subdued form.

Vegetation and Land Use

The natural vegetation in the Apex area consists primarily of deciduous and mixed forests, interspersed with areas of open fields and grasslands. However, much of the land has been developed for residential, commercial, and agricultural purposes. The region's moderate climate and ample rainfall support a diverse ecosystem when left undisturbed.

Suitability for Large-Scale Solar PV

When considering areas nearby that would be most suited to large-scale solar photovoltaic (PV) installations, several factors come into play. The gently rolling terrain around Apex offers some advantages for solar development, as it provides opportunities for optimal panel orientation without requiring extensive land modification. Areas to the south and southeast of Apex may be particularly well-suited for solar PV installations. These locations tend to have slightly flatter terrain and fewer forested areas, which could reduce the need for clearing and grading. Additionally, south-facing slopes in this region would receive more direct sunlight throughout the day, maximizing solar energy production. Former agricultural lands or brownfield sites in the vicinity could also be prime candidates for solar development. These areas often provide large, open spaces with minimal shading from trees or buildings, which is ideal for solar panel placement. It's important to note that while the topography is generally favorable, other factors such as proximity to electrical infrastructure, local zoning regulations, and environmental considerations would also play crucial roles in determining the most suitable locations for large-scale solar PV projects in the Apex area.

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.