Canby, Oregon presents a moderately challenging location for year-round solar energy generation, with significant seasonal variations in electricity output that reflect the Pacific Northwest's distinctive climate patterns.
Seasonal Solar Performance
The solar energy output at this location varies dramatically throughout the year. Summer provides the most productive period, generating 7.13 kWh per day for each kilowatt of installed solar capacity. Spring offers the second-best performance at 5.47 kWh per day, making it another favorable season for solar generation. However, the challenging seasons are quite pronounced. Autumn drops to 2.93 kWh per day, while winter presents the most difficult conditions with only 1.38 kWh per day. This represents more than a five-fold difference between peak summer and winter production.Optimal Installation Configuration
For fixed panel installations at this Canby location, the ideal tilt angle is 37 degrees facing south to maximize total year-round solar production. This angle is calculated using weighted daily solar elevation angles and accounts for Earth's elliptical orbit patterns.Local Factors Impacting Solar Production
Several environmental and weather factors in the Canby area can significantly impede solar energy production:- Frequent cloud cover and overcast skies, particularly during autumn and winter months
- Regular rainfall and persistent drizzle characteristic of Oregon's climate
- Morning fog that can linger and reduce early-day solar collection
- Accumulated debris from nearby vegetation and trees
- Snow accumulation during winter months, though typically less severe than other northern regions
Preventative Measures for Better Performance
Several installation strategies can help maximize energy production despite these challenges: Installing panels at the optimal 37-degree tilt naturally helps with snow shedding and rainfall runoff, reducing accumulation that blocks sunlight. Regular cleaning schedules become particularly important in this climate to remove moss, algae, and organic debris that thrive in Oregon's moist conditions. Proper spacing between panel rows prevents shading issues that become more critical during winter months when the sun angle is lower. Installing microinverters or power optimizers can help minimize the impact when individual panels are partially shaded by clouds or debris. Selecting panels with good low-light performance characteristics can help capture more energy during the frequent overcast conditions. Additionally, ensuring adequate ventilation behind panels helps maintain efficiency during the warmer, humid summer months. Overall, while Canby's location presents seasonal challenges typical of the Pacific Northwest, proper installation techniques and maintenance can help optimize the substantial summer and spring solar potential while minimizing winter production losses.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 Canby
Seasonal solar PV output for Latitude: 45.2525, Longitude: -122.6824 (Canby, 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 37° South in Canby, United States
To maximize your solar PV system's energy output in Canby, United States (Lat/Long 45.2525, -122.6824) throughout the year, you should tilt your panels at an angle of 37° 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 Canby, 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 Canby, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 37° 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 | 59° South in Winter | 37° 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 Canby, 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 Canby, 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 Canby, United States
Topography Around Canby, Oregon
The landscape surrounding Canby, Oregon is characterized by gently rolling terrain typical of the northern Willamette Valley. This region sits at a relatively low elevation, approximately 200 feet above sea level, creating an expansive valley floor that stretches between the Cascade Mountains to the east and the Coast Range to the west. The topography is predominantly flat to gently undulating, with occasional low hills and ridges that rarely exceed a few hundred feet in elevation change. The Molalla River flows through the eastern portion of the area, creating subtle variations in the landscape with its meandering course and associated floodplains. These river corridors introduce minor topographical features including natural levees and terraces, but the overall character remains relatively level. Agricultural fields dominate much of the surrounding countryside, indicating the generally favorable terrain for large-scale development projects.Soil and Geological Features
The underlying geology consists primarily of fertile alluvial soils deposited over thousands of years by the Willamette River system and its tributaries. These deep, well-drained soils have created the foundation for the region's agricultural productivity. The bedrock lies well below the surface in most areas, covered by substantial deposits of sediment that have created a stable foundation suitable for various types of construction. Occasional basalt outcrops and ancient lava flows from the Columbia River Basalt Group can be found in the region, though these are typically located on higher ground and represent only a small percentage of the total landscape. The majority of the terrain consists of these deep sedimentary deposits that provide excellent stability for infrastructure development.Areas Most Suitable for Large-Scale Solar Development
The flat to gently rolling agricultural lands south and east of Canby present the most promising opportunities for large-scale solar photovoltaic installations. These areas offer several key advantages including minimal grading requirements, excellent accessibility via existing rural road networks, and proximity to electrical transmission infrastructure. The relatively uniform topography across hundreds of acres would allow for efficient panel placement and maintenance access. The elevated terraces and gentle slopes found throughout the surrounding farmland provide natural drainage while maintaining the level surfaces needed for optimal solar panel orientation. Areas with southern exposure on these subtle slopes would be particularly well-suited, as they could take advantage of the natural terrain to optimize panel positioning without requiring extensive site preparation. The region's agricultural zoning and large parcel sizes create additional opportunities for solar development, particularly on lands that may be transitioning away from active farming. Many of these properties already have established access roads and utility connections, reducing the infrastructure investment required for solar installations.Topographical Considerations for Solar Development
The low elevation and valley floor location provide protection from extreme weather conditions that might affect solar installations in more exposed locations. The surrounding mountain ranges create a natural buffer against severe wind events, while the stable geological conditions minimize concerns about ground movement or settling that could affect panel arrays over time. Drainage considerations are generally favorable throughout the region, with natural water flow patterns that would not interfere with large-scale solar installations. The existing agricultural drainage systems could often be adapted or integrated into solar facility designs, reducing the need for extensive new drainage infrastructure. The relatively uniform topography across large areas allows for standardized installation techniques and equipment, potentially reducing construction costs and complexity compared to more varied terrain. This consistency also facilitates maintenance operations and allows for efficient use of land area within solar installations.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 15th of July 2025
Last Updated: Wednesday 6th of August 2025
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.




