Shelton, Washington, located in the Northern Temperate Zone, presents a mixed picture for solar energy generation via photovoltaic (PV) systems. The location's solar potential varies significantly across seasons, with peak performance during summer months and considerably reduced output in winter.

Seasonal Solar Performance

Summer stands out as the most productive season, with an impressive 6.87 kWh per day for each kilowatt of installed solar capacity. Spring follows as the second-best season, generating 5.15 kWh/day. However, autumn sees a significant drop to 2.47 kWh/day, while winter performance plummets to a mere 1.27 kWh/day.

This stark seasonal variation highlights the challenges of relying solely on solar power in Shelton throughout the year. The location's potential for solar energy generation is heavily skewed towards the warmer months, particularly from late spring through early fall.

Optimizing Solar Panel Installation

To maximize year-round solar production in Shelton, fixed solar panels should be installed at a tilt angle of 39 degrees facing south. This optimal angle helps capture the most sunlight across all seasons, balancing the low winter sun with the higher summer sun path.

Environmental and Weather Factors

Several factors can impede solar production in Shelton:

1. Cloud cover: The Pacific Northwest is known for its frequent overcast conditions, especially during fall and winter months. This can significantly reduce solar output.
2. Rainfall: Shelton experiences considerable rainfall, which can affect panel efficiency and require more frequent cleaning.
3. Forest density: The surrounding evergreen forests may cast shadows on solar installations, particularly during winter when the sun is lower in the sky.

Preventative Measures

To mitigate these challenges, consider the following preventative measures:

• Use high-efficiency panels designed to perform well in low-light conditions
• Implement a regular cleaning schedule to remove rain residue and debris
• Conduct a thorough site assessment to minimize shading from nearby trees or structures
• Consider incorporating a hybrid system with wind or other renewable sources to compensate for low solar production during winter months

While Shelton's location presents some challenges for year-round solar energy production, proper planning and implementation can still yield significant benefits, especially during the more favorable months of the year.

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 Shelton, Washington

Seasonal solar PV output for Latitude: 47.2123, Longitude: -123.0971 (Shelton, Washington, 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 39° South in Shelton, Washington, United States

To maximize your solar PV system's energy output in Shelton, Washington, United States (Lat/Long 47.2123, -123.0971) throughout the year, you should tilt your panels at an angle of 39° 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 Shelton, Washington, 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 Shelton, Washington, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 39° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
31° South in Summer	49° South in Autumn	61° South in Winter	39° 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 Shelton, Washington, 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 Shelton, Washington, 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 Shelton, Washington, United States

The topography around Shelton, Washington, is characterized by a diverse landscape that reflects its location in the Pacific Northwest. Situated at the southern end of the Puget Sound, Shelton is nestled in a region of gentle hills, lush forests, and numerous waterways. The terrain gradually rises from sea level near the shoreline to rolling hills further inland, with elevations typically ranging from a few feet above sea level to several hundred feet in the surrounding areas. To the west of Shelton, the landscape becomes more rugged as it transitions into the foothills of the Olympic Mountains. This area is dominated by dense evergreen forests and steeper slopes. To the east, the terrain is generally flatter, with a mix of farmland, wetlands, and forested areas. The nearby Oakland Bay and Hammersley Inlet provide scenic waterfront areas, while numerous creeks and small rivers crisscross the region.

Potential for Large-Scale Solar PV

When considering areas nearby Shelton for large-scale solar PV installations, several factors come into play. The ideal locations would be relatively flat, open areas with good sun exposure and minimal shading from trees or mountains. Given the region's topography and climate, the most suitable areas for solar development would likely be: 1. The flatter agricultural lands to the east and southeast of Shelton. These areas often have large, open fields that could accommodate solar arrays without significant land clearing or grading. 2. Cleared areas on gentle slopes facing south or southwest. While hilly terrain can sometimes pose challenges for solar installations, moderately sloped areas with the right orientation can actually be beneficial for maximizing solar exposure. 3. Former industrial or commercial sites that are no longer in use. These "brownfield" areas often have the advantage of being already cleared and having existing infrastructure nearby. It's important to note that while the Shelton area does receive a fair amount of sunlight, especially during the summer months, the region's climate is characterized by frequent cloud cover and rainfall, particularly in the winter. This could impact the overall efficiency of solar installations compared to sunnier regions. Additionally, any large-scale solar project would need to carefully consider environmental impacts, given the area's rich natural resources and diverse ecosystems.

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.