Harrisburg, Pennsylvania, located in the Northern Temperate Zone, offers a moderate environment for solar energy generation throughout the year. The city's location at latitude 40.3404 and longitude -76.7882 provides varying levels of solar potential across different seasons.

Seasonal Solar Performance

Solar energy production in Harrisburg fluctuates significantly between seasons. Summer stands out as the most productive period, with an average daily output of 6.07 kWh per kW of installed solar capacity. Spring follows closely, generating 5.31 kWh/day. Autumn sees a noticeable decrease to 3.33 kWh/day, while winter experiences the lowest output at 2.04 kWh/day.

Optimal Times for Solar Generation

The most ideal times for solar energy production in Harrisburg are during the late spring, summer, and early autumn months. This period typically spans from May to September, when daylight hours are longer, and the sun's angle is more favorable. However, it's important to note that solar panels can still generate electricity year-round, even during the less productive winter months.

Panel Installation Considerations

For fixed panel installations in Harrisburg, the optimal tilt angle to maximize year-round solar production is 35 degrees facing south. This angle helps balance energy generation across seasons, capturing more sunlight during winter months when the sun is lower in the sky, while still performing well during summer.

Environmental and Weather Factors

Several factors can impact solar production in Harrisburg:

• Snow accumulation in winter can temporarily reduce panel efficiency
• Cloudy days, which are common in the region, can decrease daily output

To mitigate these issues, consider installing panels at a steeper angle to encourage snow sliding off. Additionally, using high-efficiency panels and ensuring proper maintenance can help maximize energy production even under less-than-ideal conditions.

Overall, while Harrisburg may not offer the most ideal conditions for solar energy production year-round, it still presents a viable opportunity for renewable energy generation, particularly during the warmer 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 Harrisburg

Seasonal solar PV output for Latitude: 40.3404, Longitude: -76.7882 (Harrisburg, 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 Harrisburg, United States

To maximize your solar PV system's energy output in Harrisburg, United States (Lat/Long 40.3404, -76.7882) 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 Harrisburg, 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 Harrisburg, 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 Harrisburg, 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 Harrisburg, 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 Harrisburg, United States

Harrisburg, the capital city of Pennsylvania, is situated in a diverse topographical region. The city itself lies in the Great Valley, also known as the Cumberland Valley, which is part of the larger Ridge and Valley province of the Appalachian Mountains. This valley is characterized by its relatively flat terrain, with gentle rolling hills and fertile farmland. To the west of Harrisburg, the landscape becomes more rugged as it transitions into the Appalachian Mountains. Here, you'll find forested ridges and steep hillsides, creating a picturesque backdrop to the city. The famous Blue Mountain ridge runs parallel to the valley, forming a natural boundary to the north. The Susquehanna River, a major waterway in the eastern United States, flows through Harrisburg, cutting a wide path through the valley. This river has played a significant role in shaping the local topography, creating islands, floodplains, and steep riverbanks along its course.

Potential Areas for Large-Scale Solar PV

When considering areas suitable for large-scale solar photovoltaic (PV) installations near Harrisburg, several factors come into play. The ideal locations would have ample open space, relatively flat terrain, and good sun exposure. Based on these criteria, a few areas stand out as potentially suitable: The agricultural lands to the south and east of Harrisburg offer promising opportunities for solar development. These areas, part of the Great Valley, feature expansive farmlands with minimal shading from natural features. The gently rolling terrain in this region would require minimal grading for solar panel installation. Former industrial sites or brownfields in the greater Harrisburg area could also be repurposed for solar energy production. These locations often have the advantage of being already cleared and leveled, with existing infrastructure that could potentially be utilized for solar projects. The ridge tops of the nearby mountains, while more challenging to access, could provide excellent sun exposure for solar panels. However, the environmental impact and construction difficulties in these areas would need to be carefully considered. It's important to note that any large-scale solar PV project would require detailed site assessments, environmental impact studies, and compliance with local zoning regulations. The suitability of specific locations would ultimately depend on a combination of geographical, environmental, and regulatory factors.

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.