The location at Missoula, Montana in the United States is decent for generating energy through solar panels, but it's not perfect. The amount of electricity you can get from your solar panels depends on the time of year.
In summer, each kilowatt of installed solar power will give you about 7.33 kilowatt-hours per day. In autumn, this drops to about 3.13 kilowatt-hours per day and then further in winter to just 1.30 kilowatt-hours per day due to shorter daylight hours and less intense sunlight. However, things start improving again in spring with around 5.38 kilowatt-hours per day.
So if you're thinking about when might be the best times of year to generate solar power at this location, summer and spring are definitely your best bets because they provide more sunlight than autumn or winter.
To make sure that your solar panels are as efficient as possible all year round though, it's recommended that they're tilted at an angle of 39 degrees facing southward if they're fixed installations - this position will help them capture the most sunlight over the course of a whole year.
As for local factors that could affect how much energy your solar panels produce; Missoula does have some challenges like cloudy weather and snowfall during certain periods which can cover up your panels reducing their effectiveness significantly. To overcome these issues:
1) You may want to consider installing a system that allows you to adjust the tilt angle throughout the year so it captures maximum light even during less sunny seasons.
2) For dealing with snow coverage on your panel surface - there are several solutions available such as using heated wires underneath or specialized brushes designed specifically for clearing off snow from PV modules without damaging them.
3) Regular maintenance checks should also be conducted especially after heavy storms or high wind events which could potentially damage or misalign the PV system causing decreased efficiency.
Remember though, even with these challenges, solar energy can still be a viable and environmentally friendly option for generating electricity in Missoula.
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 3033 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 Missoula
Seasonal solar PV output for Latitude: 46.9792, Longitude: -114.0602 (Missoula, 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 Missoula, United States
To maximize your solar PV system's energy output in Missoula, United States (Lat/Long 46.9792, -114.0602) 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 Missoula, 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 Missoula, 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 Missoula, 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 Missoula, 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 Missoula, United States
Missoula, located in the western part of Montana, United States, is surrounded by a diverse topography. The city is situated in the Missoula Valley and is flanked by multiple mountain ranges including the Rattlesnake Mountains to the north-east, Garnet Range to the east and Bitterroot Mountains to the south-west. The area also features several rivers such as Clark Fork River and Bitterroot River.
As for large-scale solar PV potential, it would be best suited in relatively flat areas with maximum sun exposure. Given that Missoula lies within a valley surrounded by mountains which may limit sunlight at certain times of day or year due to shadows casted by these high terrains. Therefore, open spaces like agricultural lands or unused flatlands on outskirts of town could potentially be good locations for solar farms.
However, considering local weather conditions is also crucial when assessing suitability for solar power generation. Missoula has a cool-summer humid continental climate with long cold winters and short warm summers which may not make it an ideal location compared to sunnier states such as Arizona or California.
Finally, any decision about siting large-scale PV needs careful analysis including factors like land use regulations and proximity to existing transmission infrastructure which can significantly impact feasibility and cost-effectiveness of such projects.
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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Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Tuesday 7th of May 2024
Last Updated: Wednesday 26th of June 2024
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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.