Clatskanie, Oregon, located at 46.1012° N, -123.2068° W in the Northern Temperate Zone, offers varying potential for solar energy production throughout the year. This location experiences significant seasonal differences in solar electricity generation, with summer being the most productive period.

Seasonal Solar Production

Solar panels in Clatskanie produce their highest output during summer months, generating approximately 6.76 kWh per day for each kilowatt of installed capacity. Spring follows as the second most productive season with 5.19 kWh/day per installed kilowatt.

Production drops considerably during autumn to 2.69 kWh/day per kilowatt, and winter sees the lowest generation at just 1.26 kWh/day per kilowatt. This creates a ratio of more than 5:1 between the best and worst seasons for solar energy production.

Optimal Panel Installation

For fixed solar panel installations in Clatskanie, the ideal tilt angle to maximize year-round energy production is 38 degrees facing South. This angle optimizes the annual solar harvest by accounting for the region's seasonal sun paths and solar elevation changes throughout the year.

Environmental Challenges

Several environmental factors can impact solar production in Clatskanie:

• Frequent cloud cover and rainfall in the Pacific Northwest, particularly during fall and winter months
• Potential for snow accumulation during winter, which can temporarily block panels
• Morning fog common in this river valley location, reducing early-day production
• Possible forest fire smoke during late summer months, which can diminish solar radiation

Mitigation Strategies

To maximize solar production despite these challenges, consider implementing these preventative measures:

Installing panels with slightly steeper angles than the optimal 38 degrees can help shed snow more effectively during winter months. Automated cleaning systems or regular manual cleaning can remove dust, pollen, and other debris that accumulates on panels.

Microinverters or power optimizers can help minimize production losses when some panels are shaded or covered. Additionally, oversizing the array relative to inverter capacity can improve production during low-light conditions common in winter months.

While Clatskanie isn't ideal for year-round solar production compared to sunnier regions, a properly designed system can still provide significant energy, particularly from late spring through early fall when production is substantially higher.

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 Clatskanie

Seasonal solar PV output for Latitude: 46.1012, Longitude: -123.2068 (Clatskanie, 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 38° South in Clatskanie, United States

To maximize your solar PV system's energy output in Clatskanie, United States (Lat/Long 46.1012, -123.2068) throughout the year, you should tilt your panels at an angle of 38° 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 Clatskanie, 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 Clatskanie, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 38° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
29° South in Summer	48° South in Autumn	60° South in Winter	38° 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 Clatskanie, 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 Clatskanie, 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 Clatskanie, United States

The landscape surrounding Clatskanie, Oregon is characterized by diverse topographical features typical of the Pacific Northwest region. Situated in Columbia County along the Columbia River, Clatskanie lies approximately 60 miles northwest of Portland in a transitional zone between the Coast Range mountains and the Columbia River valley.

Topographical Features

Clatskanie is nestled in a valley surrounded by forested hills and mountains. The terrain rises dramatically from the Columbia River floodplain into the foothills of the Coast Range, with elevations ranging from near sea level along the river to several hundred feet in the surrounding highlands. The Clatskanie River, a tributary of the Columbia, winds through the area creating additional valleys and riparian corridors. The immediate vicinity features a mix of flat bottomlands near the river and increasingly steep, undulating terrain as one moves away from the water. Dense coniferous forests cover much of the hillsides, with Douglas fir, western hemlock, and western red cedar being predominant species. These forested slopes create significant areas of shade and varied sun exposure throughout the region.

Climate Considerations

The climate in the Clatskanie area is heavily influenced by its proximity to the Pacific Ocean, resulting in moderate temperatures but considerable precipitation. The region receives substantial rainfall, particularly during fall and winter months, with overcast conditions being common. Fog is also frequent, especially in valley areas during morning periods. Maritime influences moderate temperature extremes, creating milder winters and cooler summers compared to inland locations at similar latitudes. This coastal influence affects solar potential by introducing more cloud cover and atmospheric moisture than would be found in drier inland regions.

Solar Potential Areas

For large-scale solar photovoltaic development, the most suitable areas near Clatskanie would be:

Columbia River Floodplain

The relatively flat agricultural lands along the Columbia River floodplain offer the most promising locations for solar development. These areas provide: - Level terrain requiring minimal grading - Fewer obstructions from tall vegetation - Better solar access with fewer topographical shadows - Existing access to transportation infrastructure Specifically, the farmlands between Clatskanie and the Columbia River, extending east toward Rainier and west toward Westport, present the best combination of favorable topography for solar installations.

Cleared Upland Areas

Some upland areas where commercial timber has been harvested may offer secondary potential. South-facing cleared slopes, particularly those with established access roads from logging operations, could provide suitable sites. However, these locations present more challenges in terms of: - Increased construction complexity on sloped terrain - Potential shading from adjacent forested areas - More complex drainage and erosion control requirements

Topographical Limitations

Several topographical factors limit solar development potential in the broader Clatskanie region: The prevalence of steep, forested hillsides creates significant shading issues across much of the landscape. These forested areas also represent valuable timber resources and wildlife habitat, making conversion to solar facilities economically and environmentally challenging. Wetland areas, particularly along the Clatskanie River and its tributaries, present development constraints due to environmental sensitivity and flooding potential. The rugged nature of the Coast Range foothills also means that many areas would require substantial and costly site preparation. Additionally, the region's overall topographical variety means that microclimates exist throughout the area, with some locations receiving significantly different amounts of solar radiation based on aspect, elevation, and exposure to coastal weather patterns.

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.