Connell, Washington, located in the Northern Temperate Zone, presents a moderately favorable location for year-round solar energy generation, though with significant seasonal variations that potential solar installers should carefully consider.

Seasonal Solar Performance

The solar energy output at this location shows dramatic seasonal swings. Summer delivers the strongest performance at 7.73 kWh per day per kW of installed solar capacity, making it an excellent time for solar generation. Spring follows as the second-best season with 6.35 kWh per day per kW, providing substantial energy production as daylight hours increase. Autumn sees a notable decline to 3.31 kWh per day per kW, while winter presents the most challenging conditions at just 1.61 kWh per day per kW of installed capacity. This represents nearly a five-fold difference between peak summer and winter production.

Optimal Installation Configuration

For fixed panel installations at Connell, the ideal tilt angle is 39 degrees facing south to maximize total year-round solar production. This angle is calculated by analyzing daily solar elevation angles throughout the year and weighting them by solar irradiance potential, accounting for Earth's elliptical orbit around the sun.

Local Factors Affecting Solar Production

Several environmental and weather factors in the Connell area can significantly impact solar energy production:

• Dust and Agricultural Particulates: Located in an agricultural region, solar panels may accumulate dust, pollen, and farming-related particles that reduce efficiency
• Snow Accumulation: Winter weather can cause snow buildup on panels, completely blocking energy production during covered periods
• Wind-Blown Debris: The open landscape may subject panels to wind-carried materials that can scratch or soil panel surfaces
• Temperature Extremes: Both hot summers and cold winters can affect panel efficiency and equipment longevity

Preventative Measures for Enhanced Production

To maximize solar energy output despite these challenges, several installation strategies prove beneficial:

• Regular Cleaning Schedule: Implement quarterly professional cleaning or install automated cleaning systems to remove dust and debris
• Steep Panel Angle: The recommended 39-degree tilt helps snow slide off naturally and reduces debris accumulation
• Quality Mounting Systems: Use robust mounting hardware designed for high wind loads and temperature fluctuations
• Accessible Installation: Design the system layout to allow safe, easy access for maintenance and snow removal when necessary
• Monitoring Systems: Install production monitoring to quickly identify when panels need cleaning or maintenance

Overall, while Connell offers decent solar potential during spring and summer months, the location requires careful planning and regular maintenance to optimize year-round energy production.

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 Connell

Seasonal solar PV output for Latitude: 46.6682, Longitude: -118.8554 (Connell, 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 Connell, United States

To maximize your solar PV system's energy output in Connell, United States (Lat/Long 46.6682, -118.8554) 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 Connell, 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 Connell, 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
30° South in Summer	50° 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 Connell, 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 Connell, 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 Connell, United States

Topographical Features Around Connell, Washington

Connell is situated in the Columbia River Basin of south-central Washington State, positioned within the broad expanse of the Columbia Plateau. This region is characterized by relatively flat to gently rolling terrain that was formed by ancient lava flows and subsequently modified by massive glacial floods during the last ice age. The landscape around Connell consists primarily of agricultural land with elevations ranging from approximately 800 to 1,200 feet above sea level.

The immediate area surrounding Connell features wide, open plains with minimal topographical obstacles. The terrain slopes very gradually toward the Columbia River, which flows roughly 15 miles to the south of the town. This gentle gradient creates excellent drainage while maintaining the flat characteristics that define much of the Palouse and Columbia Basin region. The landscape is punctuated by occasional low ridges and shallow coulees, but these features are generally modest in scale and do not significantly interrupt the overall flatness of the region.

Agricultural fields dominate the visual landscape, with large sections devoted to wheat cultivation, potato farming, and other crops suited to the semi-arid climate. These expansive fields demonstrate the area's naturally level topography, as mechanized farming operations require relatively flat terrain for efficiency. The soil composition consists primarily of loess deposits - fine, wind-blown sediments that have accumulated over thousands of years to create the fertile agricultural base that characterizes the region.

Optimal Areas for Large-Scale Solar Development

The topographical characteristics around Connell present exceptional opportunities for large-scale solar photovoltaic installations. The most suitable areas lie on the broad, flat plains that extend in all directions from the town, particularly those sections that are currently used for dryland farming or remain undeveloped. These areas offer the ideal combination of minimal slope, consistent orientation, and freedom from significant shading obstacles.

The areas immediately south and southeast of Connell appear particularly well-suited for solar development. This region features extensive flat terrain with excellent southern exposure and minimal interference from natural or man-made obstacles. The gentle southward slope toward the Columbia River provides natural drainage while maintaining optimal angles for solar panel placement. Additionally, these areas benefit from existing agricultural road infrastructure that could facilitate construction and maintenance access.

West and northwest of Connell, the terrain remains largely flat with good solar potential, though developers would need to consider the proximity to existing agricultural operations and rural residences. The topography in these areas is characterized by broad, open fields with minimal elevation changes, making them technically suitable for large-scale installations while requiring careful consideration of land use compatibility.

The eastern areas around Connell also present good opportunities, featuring similar flat terrain with adequate space for substantial solar arrays. These locations benefit from the same geological characteristics that make the entire region suitable - stable soil conditions, minimal slope variation, and absence of significant topographical barriers. The key advantage of these eastern areas is their distance from more densely settled agricultural zones, potentially reducing land use conflicts.

Areas to the immediate north of Connell, while topographically suitable, may present more challenges due to closer proximity to existing infrastructure and more intensive agricultural use. However, the fundamental terrain characteristics remain favorable, with the same flat to gently rolling topography that defines the broader region. Any solar development in these areas would need to carefully consider integration with existing land uses while taking advantage of the excellent topographical conditions.

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.