Garden City, New York, located in the Northern Temperate Zone, offers a varied solar energy potential throughout the year. The location's ability to generate electricity via solar photovoltaic (PV) systems fluctuates significantly across seasons, presenting both opportunities and challenges for year-round energy production.
Seasonal Solar Performance
Summer stands out as the most productive season, with an impressive 6.13 kWh per day output for each kilowatt of installed solar capacity. Spring follows closely, generating 5.65 kWh/day. These seasons provide ideal conditions for solar energy harvesting, with longer daylight hours and more direct sunlight.
Autumn sees a noticeable decline in production, yielding 3.63 kWh/day. Winter experiences the most significant drop, with only 2.14 kWh/day. This substantial seasonal variation highlights the importance of proper system sizing to meet year-round energy needs.
Optimal Panel Positioning
For fixed panel installations in Garden City, 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 can impact solar production in Garden City:
- Snow accumulation in winter can temporarily reduce panel efficiency.
- Cloudy days, particularly common in winter and early spring, may decrease energy output.
To mitigate these issues, consider installing panels at a steeper angle to encourage snow sliding off and using high-efficiency panels that perform better in low-light conditions. Regular maintenance, including snow removal and panel cleaning, can help maintain optimal performance.
Conclusion
While Garden City experiences significant seasonal variations in solar potential, it remains a viable location for solar PV installations. The strong performance in summer and spring can offset the reduced output in winter, making it a worthwhile investment for those looking to harness renewable energy. Proper system design, panel positioning, and maintenance are key to maximizing solar energy production in this location.
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 Garden City, New York
Seasonal solar PV output for Latitude: 40.7244, Longitude: -73.6484 (Garden City, New York, 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 Garden City, New York, United States
To maximize your solar PV system's energy output in Garden City, New York, United States (Lat/Long 40.7244, -73.6484) 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 Garden City, New York, 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 Garden City, New York, 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 | 45° South in Autumn | 56° 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 Garden City, New York, 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 Garden City, New York, United States.
Our calculation method
- Solar Position:
We determine the Sun's position on the Winter solstice using the location's latitude and solar declination. - Shadow Projection:
We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle. - 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 Garden City, New York, United States
Garden City, located on Long Island in New York, is situated in an area characterized by relatively flat terrain. The topography of the surrounding region is predominantly level, with gentle slopes and low-lying areas. This landscape is typical of the coastal plain that makes up much of Long Island's geography. The area around Garden City features a mix of suburban development and open spaces. To the north and west, the terrain gradually rises towards the center of Long Island, forming what is known as the Harbor Hill Moraine. This slight elevation change is barely noticeable to the casual observer but does contribute to the area's drainage patterns. To the south of Garden City, the land becomes increasingly flat as it approaches the barrier islands and coastal areas. This region includes numerous marshes, wetlands, and estuaries that are part of the South Shore Estuary Reserve. These low-lying areas are particularly vulnerable to flooding and sea-level rise.
Solar PV Potential
When considering areas nearby that would be most suited to large-scale solar PV installations, several factors come into play. The flat terrain of Long Island generally provides favorable conditions for solar energy development. However, the densely populated nature of the region limits available space for extensive solar farms. Some of the more promising areas for large-scale solar PV installations might include: 1. Former industrial sites or brownfields in nearby towns like Hempstead or Uniondale. These areas often have large, open spaces that are already cleared and may have existing infrastructure that can be repurposed. 2. Agricultural lands to the east of Garden City, where there are larger tracts of open space. However, this would need to be balanced with preserving farmland and local food production. 3. Parking lots and rooftops of large commercial or industrial buildings in the surrounding area. While not technically "large-scale," distributed solar installations on these structures could collectively generate significant power. 4. The relatively flat areas south of Garden City, provided they are not in environmentally sensitive wetlands or flood-prone zones. It's important to note that any large-scale solar development in this region would need to carefully consider local zoning laws, environmental impacts, and community concerns. The dense population and high land values in this part of Long Island may make it challenging to find suitable locations for extensive solar farms compared to more rural areas of New York State.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!
Citation Guide
Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Tuesday 18th of March 2025
Last Updated: Monday 21st of July 2025
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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.




