Mosier, Oregon, located in the Northern Temperate Zone, presents a mixed picture for year-round solar energy generation. This location, with coordinates 45.6835, -121.3973, experiences significant seasonal variations in solar PV output, which impacts its overall suitability for solar energy production.

Seasonal Solar Performance

The solar energy potential in Mosier varies dramatically across the seasons. Summer stands out as the most productive period, with an impressive 7.72 kWh per day for each kilowatt of installed solar capacity. Spring follows as the second-best season, generating 6.26 kWh/day. However, there's a sharp decline in autumn, with only 3.31 kWh/day, and winter performance drops even further to a mere 1.60 kWh/day.

Optimal Times for Solar Generation

Clearly, the months from late spring through early fall offer the best conditions for solar energy production in Mosier. During this period, longer days and typically clearer skies contribute to higher energy yields. The summer solstice in June marks the peak of solar potential, with gradually decreasing output as the days shorten towards autumn.

Panel Installation Considerations

For those planning a fixed panel installation in Mosier, the ideal tilt angle to maximize year-round production is 38 degrees facing south. This angle helps optimize energy capture across all seasons, balancing the high summer sun with the lower winter sun angle.

Environmental and Weather Factors

Several environmental factors could potentially impact solar production in Mosier:

1. Winter weather: The low winter output suggests frequent overcast conditions and possibly snow, which can cover panels and reduce efficiency.
2. Wildfire smoke: The Pacific Northwest is prone to summer wildfires, and smoke can significantly reduce solar irradiance.
3. Morning fog: Being close to the Columbia River, Mosier may experience morning fog, particularly in cooler months.

Mitigation Strategies

To address these challenges, consider the following preventative measures:

• Install panels at a steeper angle to encourage snow sliding off
• Use high-quality, anti-reflective coatings to maximize light absorption, even in less-than-ideal conditions
• Implement a robust cleaning schedule, especially after wildfire events
• Consider a tracking system to maximize energy capture during limited daylight hours in winter

While Mosier's location presents some challenges for year-round solar energy production, with proper planning and mitigation strategies, it can still be a viable option for renewable energy generation, particularly 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 Mosier

Seasonal solar PV output for Latitude: 45.6835, Longitude: -121.3973 (Mosier, 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 Mosier, United States

To maximize your solar PV system's energy output in Mosier, United States (Lat/Long 45.6835, -121.3973) 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 Mosier, 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 Mosier, 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	49° 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 Mosier, 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 Mosier, 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 Mosier, United States

Mosier, located in northern Oregon along the Columbia River Gorge, is characterized by a diverse and dramatic topography. The area surrounding this small city features a mix of steep, forested hillsides and flatter, open plateaus. The Columbia River forms a major geographical feature to the north, with its wide, flat surface contrasting sharply with the rugged terrain on either side. The landscape immediately around Mosier is dominated by the Columbia River Gorge, a deep canyon carved by ancient floods and erosion. This gorge creates steep cliffs and dramatic elevation changes, with some areas rising several hundred feet above the river in a short distance. The southern side of Mosier, moving away from the river, transitions into rolling hills that gradually climb towards the foothills of Mount Hood.

Vegetation and Land Use

The vegetation in the area varies significantly with elevation and proximity to the river. Near the water, you'll find more moisture-loving plants and deciduous trees. As you move up in elevation, the landscape transitions to drier, more open areas with grass and shrubs, interspersed with stands of evergreen trees like Douglas fir and Ponderosa pine. Much of the flatter land around Mosier is used for agriculture, particularly fruit orchards. The hillsides are often left in their natural state or used for grazing, as they are too steep for most forms of cultivation.

Potential for Solar PV

When considering areas near Mosier for large-scale solar PV installations, the most suitable locations would be the flatter, open areas on the plateaus above the river gorge. These areas offer several advantages: 1. They receive more consistent sunlight throughout the day, as they are less affected by the shadowing that can occur in the deeper parts of the gorge. 2. The relatively flat terrain makes construction and maintenance of solar arrays easier and more cost-effective. 3. Many of these areas are already cleared for agriculture, which could potentially be converted to solar use with less environmental impact than developing untouched land. Specific areas that might be suitable include the plateaus to the south and east of Mosier, where the land levels out above the steep river banks. However, any large-scale solar development would need to carefully consider the environmental impact, particularly given the scenic and ecological importance of the Columbia River Gorge area. It's worth noting that while these areas may be topographically suitable, other factors such as grid connectivity, local regulations, and community acceptance would also play crucial roles in determining the feasibility of large-scale solar projects in the region.

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

Tell Us About Your Work

We love seeing how our research helps others! If you've cited this article in your work, we'd be delighted to hear about it. Drop us a line via our Contact Us page or on X, to share where you've used our information - we may feature a link to your work on our site. This helps create a network of valuable resources for others in the solar energy community and helps us understand how our research is contributing to the field. Plus, we occasionally highlight exceptional works that reference our research on our social media channels.

Feeling generous?

Share this with your friends!

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.