McKees Rocks, Pennsylvania, located in the Northern Temperate Zone, presents a mixed picture for solar energy generation via photovoltaic (PV) panels. The location's potential for solar power production varies significantly throughout the year, with distinct seasonal patterns.

Seasonal Solar Performance

Summer stands out as the most productive season, with an average daily output of 6.10 kWh per kW of installed solar capacity. Spring follows closely behind, generating 5.37 kWh/day. These seasons offer the best conditions for solar energy production, benefiting from longer daylight hours and more direct sunlight.

Autumn sees a noticeable decrease in solar output, dropping to 3.46 kWh/day. Winter presents the biggest challenge, with production plummeting to just 1.84 kWh/day per kW installed. This significant seasonal variation highlights the importance of proper system sizing to ensure adequate year-round energy supply.

Optimal Panel Installation

For fixed panel installations in McKees Rocks, the ideal tilt angle to maximize year-round solar production is 35 degrees facing South. This angle optimizes the panels' exposure to sunlight throughout the year, balancing the sun's changing position across seasons.

Environmental and Weather Considerations

Several factors in McKees Rocks can impact solar energy production:

• Cloud cover: The region experiences significant cloud cover, particularly in winter months, which can reduce solar output.
• Snow accumulation: Winter snowfall can temporarily cover panels, impeding energy production.

To mitigate these challenges, consider the following preventative measures:

• Install panels at the recommended 35-degree angle to promote natural snow sliding.
• Use high-efficiency panels to maximize production during periods of reduced sunlight.
• Implement a regular cleaning schedule, especially after snowfall events.
• Consider a ground-mounted system for easier access and maintenance.

While McKees Rocks isn't ideal for year-round solar production, thoughtful system design and maintenance can still yield significant energy benefits, particularly during the more productive spring and summer months.

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 McKees Rocks

Seasonal solar PV output for Latitude: 40.4688, Longitude: -80.0872 (McKees Rocks, 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 35° South in McKees Rocks, United States

To maximize your solar PV system's energy output in McKees Rocks, United States (Lat/Long 40.4688, -80.0872) throughout the year, you should tilt your panels at an angle of 35° 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 McKees Rocks, 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 McKees Rocks, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 35° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
24° South in Summer	44° South in Autumn	55° South in Winter	33° 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 McKees Rocks, 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 McKees Rocks, 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 McKees Rocks, United States

McKees Rocks, located in western Pennsylvania near Pittsburgh, sits in an area characterized by rolling hills and river valleys. The town itself is nestled along the Ohio River, with the land rising gently from the river's edge. The surrounding landscape features a mix of low hills, shallow valleys, and relatively flat areas, typical of the Appalachian Plateau region. The topography around McKees Rocks is heavily influenced by the confluence of three major rivers: the Ohio, Allegheny, and Monongahela. These waterways have carved out wide valleys over time, creating a network of flatlands near the rivers and steeper hillsides further inland. The terrain becomes more rugged and hilly as you move away from the river valleys, with elevations generally increasing.

Potential Areas for Large-Scale Solar PV

When considering locations for large-scale solar photovoltaic (PV) installations near McKees Rocks, several factors come into play. The ideal areas would be relatively flat, receive ample sunlight, and have minimal obstructions like tall buildings or dense forests. Some of the most suitable areas for solar PV development might be found on the plateaus and gentler slopes to the south and west of McKees Rocks. These areas often feature more open spaces and fewer dense urban developments, providing better opportunities for large-scale installations. Former industrial sites or brownfields in the region could also be prime candidates for solar PV projects. These areas are typically flat, already cleared of vegetation, and may have existing infrastructure that could be repurposed for solar energy production. Agricultural lands in the surrounding rural areas, particularly those with south-facing slopes, could potentially be used for solar farms. However, this would need to be balanced with the preservation of valuable farmland. It's important to note that while the rolling topography of the region presents some challenges for large-scale solar installations, modern solar panel technology has become increasingly adaptable to varied terrain. Careful site selection and creative design solutions can help overcome many of the topographical limitations in the area around McKees Rocks.

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.