Rifle, Colorado, located at latitude 39.5347 and longitude -107.7831 in the Northern Temperate Zone, offers varying potential for solar PV energy generation throughout the year. This location experiences significant seasonal fluctuations in solar energy production, with the highest output occurring during summer months.

Seasonal Solar Production

Solar panels in Rifle generate their maximum electricity during summer, producing approximately 7.56 kWh per day for each kilowatt of installed capacity. Spring follows as the second most productive season, yielding about 6.46 kWh daily per kilowatt. Production decreases substantially in autumn to 4.33 kWh per day, while winter sees the lowest output at just 2.88 kWh daily per installed kilowatt.

This seasonal pattern creates a relatively wide gap between summer and winter production, with summer generating more than 2.6 times the electricity of winter months. Spring and summer together form the most advantageous period for solar energy generation in this location, accounting for significantly more production than the autumn-winter period.

Optimal Panel Installation

For fixed solar panel installations in Rifle, the ideal tilt angle to maximize year-round energy production is 34 degrees facing South. This angle has been calculated by analyzing the daily solar elevation at this latitude, weighted according to the daily photovoltaic potential throughout the year.

Environmental and Weather Considerations

Several environmental factors in Rifle could potentially impact solar production:

• Snow accumulation during winter months can temporarily cover panels, reducing output during an already low-production season
• The mountainous terrain of western Colorado may create localized shading depending on specific property location
• Occasional dust storms in this semi-arid region can reduce panel efficiency
• Wildfire smoke during summer fire seasons can diminish solar radiation reaching panels

Preventative Measures

To maximize solar production despite these challenges, several preventative measures can be implemented. Installing panels at the recommended 34-degree tilt helps facilitate natural snow shedding. Regular cleaning schedules, particularly after dust events, will maintain optimal efficiency. A site assessment before installation can identify potential shading issues from surrounding terrain or vegetation. Finally, considering a slightly oversized system can help compensate for the significant winter production decrease and occasional weather-related reductions.

Overall, Rifle presents a good location for solar PV with excellent summer and spring production, though winter output is considerably lower and environmental factors require some mitigation strategies.

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 Rifle

Seasonal solar PV output for Latitude: 39.5347, Longitude: -107.7831 (Rifle, 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 34° South in Rifle, United States

To maximize your solar PV system's energy output in Rifle, United States (Lat/Long 39.5347, -107.7831) throughout the year, you should tilt your panels at an angle of 34° 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 Rifle, 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 Rifle, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 34° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
23° South in Summer	44° South in Autumn	54° South in Winter	32° 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 Rifle, 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 Rifle, 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 Rifle, United States

The topography surrounding Rifle, Colorado presents a diverse landscape characterized by dramatic elevation changes and varied terrain features. Situated in western Colorado's Garfield County at an elevation of approximately 5,348 feet (1,630 meters), Rifle lies within the Colorado River Valley. This valley creates a relatively flat corridor amidst the surrounding mountainous terrain, with the Colorado River flowing through the area from east to west. To the north of Rifle rise the imposing Grand Hogback Ridge and the Roan Plateau, featuring steep cliff faces and elevated mesas that reach heights exceeding 8,000 feet. These northern highlands are characterized by significant slopes and rugged terrain with numerous drainages and gullies cutting through the landscape. The southern horizon is dominated by the impressive Battlement Mesa, which rises dramatically from the valley floor to elevations over 10,000 feet, creating a striking visual backdrop for the region.

Solar PV Potential Areas

Several areas near Rifle offer promising conditions for large-scale solar photovoltaic development. The valley floors and gentle terraces along the Colorado River Valley present the most immediately suitable terrain for solar installations. These relatively flat areas minimize the need for extensive grading and earthwork, reducing development costs while providing adequate space for panel arrays. The lower portions of the mesas south of Rifle, particularly the northern edges of Battlement Mesa, offer south-facing slopes that receive consistent solar exposure throughout the year. These elevated positions experience minimal shadowing from surrounding terrain features, enhancing their suitability for solar development. Areas west of Rifle toward the community of Parachute include expansive valley benches and terraces that provide the flat terrain ideal for large solar installations. These western lowlands benefit from reduced cloud cover compared to the higher elevations, resulting in more consistent solar radiation reaching ground level. The elevated plateaus north of Rifle, while more challenging to access, contain significant flat areas that could accommodate large-scale solar development. These higher elevation sites typically experience clearer atmospheric conditions, though winter access may present logistical challenges. It's worth noting that the most optimal solar PV locations would balance several factors beyond just topography, including proximity to existing transmission infrastructure, land ownership patterns, and environmental considerations. The Bureau of Land Management administers substantial portions of land in the region, which may offer potential for renewable energy development through established federal leasing programs.

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.