Motala, Östergötland County, Sweden, situated at latitude 58.5334 and longitude 15.0333 in the Northern Temperate Zone, presents a location with significant seasonal variation for solar PV energy generation. The potential electricity output fluctuates dramatically throughout the year, making it a challenging yet workable location for solar energy production.

Seasonal Solar Production

Solar panels in Motala would experience their peak production during summer months, generating approximately 5.74 kWh per day for each kilowatt of installed capacity. Spring follows as the second most productive season with 4.28 kWh/day. However, energy generation drops substantially during autumn to just 1.61 kWh/day, and plummets further in winter to a minimal 0.64 kWh/day per installed kilowatt.

This stark seasonal contrast means that approximately 75% of the annual solar energy production occurs during spring and summer months, making the May to August period particularly valuable for solar energy harvesting in this location.

Optimal Panel Installation

For a fixed panel installation in Motala, Östergötland County, the ideal tilt angle to maximize year-round production is 49 degrees facing South. This specific angle has been calculated to optimize the annual solar energy capture, taking into account the region's northern latitude and seasonal sun path variations.

Environmental and Weather Challenges

Several significant factors can impede solar production at this Swedish location:

• Snow accumulation during winter months can completely cover panels, reducing or eliminating production during the already low-yield winter season
• Frequent cloud cover in the region, particularly during autumn and winter
• Potential for frost and ice formation on panels
• Limited solar irradiance during winter due to the northern latitude

Preventative Measures

To maximize energy production despite these challenges, several installation strategies can be employed:

• Install panels at the steeper 49-degree angle to promote snow sliding off panels
• Consider snow removal systems or manual cleaning protocols for winter months
• Use anti-reflective and hydrophobic panel coatings to reduce snow and ice adhesion
• Implement bifacial panels to capture ground-reflected light, particularly effective when snow cover increases albedo
• Design the system with higher capacity to compensate for seasonal variations

While Motala's location presents challenges for year-round solar production, proper system design with these considerations can still make solar PV a viable component of the local energy mix, particularly as part of a hybrid renewable energy system that incorporates other sources to compensate during low-production winter months.

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 174 locations across Sweden. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.

Link: Solar PV potential in Sweden by location

Solar output per kW of installed solar PV by season in Motala

Seasonal solar PV output for Latitude: 58.5334, Longitude: 15.0333 (Motala, Sweden), 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 49° South in Motala, Sweden

To maximize your solar PV system's energy output in Motala, Sweden (Lat/Long 58.5334, 15.0333) throughout the year, you should tilt your panels at an angle of 49° 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 Motala, Sweden

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 Motala, Sweden. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 49° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
42° South in Summer	60° South in Autumn	71° South in Winter	50° 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 Motala, Sweden

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 Motala, Sweden.

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 Motala, Sweden

Topography of Motala Region

Motala is situated in Östergötland County in southern Sweden, nestled on the eastern shores of Lake Vättern, which is Sweden's second-largest lake. The topography around Motala is characterized by a gentle, rolling landscape that transitions between lakeside lowlands and modest elevations. The terrain features a mix of open agricultural fields, scattered woodland areas, and numerous smaller lakes and waterways. The elevation in the Motala area is relatively modest, generally ranging between 90 and 150 meters above sea level. This creates a landscape that is neither mountainous nor completely flat, but rather pleasantly undulating. The proximity to Lake Vättern significantly influences the local geography, with the lakefront areas being generally flatter while the land gradually rises as one moves eastward away from the lake. The Motala River (Motala ström) flows through the area, connecting Lake Vättern with Lake Roxen to the east, creating a natural waterway that has historically been important for the region's development. This river valley creates some of the lower-lying areas in the region's topography.

Soil and Ground Conditions

The soil composition around Motala is diverse, with areas of clay-rich soils in the lower regions, particularly in agricultural areas, while higher ground often features moraine soils (a mix of unsorted glacial sediment). The region was heavily shaped by glacial activity during the last ice age, resulting in the drumlin fields and eskers that are characteristic of the area. These glacial deposits contribute to the gently rolling nature of the landscape.

Optimal Areas for Solar PV Development

For large-scale solar photovoltaic (PV) installations, several factors related to the topography make certain areas around Motala particularly suitable: The gently sloping terrain to the east and southeast of Motala offers favorable conditions for solar PV development. These areas provide natural south-facing slopes that optimize solar exposure throughout the day. The modest elevation changes are beneficial as they help avoid shadowing effects between rows of panels, while still providing enough slope for natural drainage. Agricultural plains surrounding Motala, particularly in the eastern direction toward Linköping, present extensive open areas with minimal obstruction to sunlight. These relatively flat expanses allow for efficient arrangement of solar arrays and simplified construction requirements. Some of the higher ground areas northeast of Motala town, where the land rises slightly, offer good exposure with minimal shadowing from surrounding features. These elevated positions tend to experience less fog compared to locations closer to Lake Vättern, potentially increasing overall solar efficiency.

Topographical Challenges

Despite the generally favorable terrain, some topographical challenges exist for solar development in the region. The numerous small lakes and waterways that dot the landscape can fragment potential development sites, requiring careful planning to maximize usable area. Additionally, some of the more heavily forested sections would require clearing, which must be balanced against environmental considerations. Areas immediately adjacent to Lake Vättern may experience more frequent fog conditions, especially in spring and autumn months, which could temporarily reduce solar efficiency. The lakeside areas also tend to have more valuable recreational and residential uses, making them less practical for large-scale solar installations. The northern aspects of some of the rolling hills would be less suitable for solar development due to reduced direct sunlight exposure, particularly during winter months when the sun angle is already low at this northern latitude. In conclusion, the most promising areas for large-scale solar PV development around Motala would be the open agricultural lands to the east and southeast of the town, especially on gentle south-facing slopes that maximize exposure while minimizing development challenges.

Sweden solar PV Stats as a country

Sweden ranks 36th in the world for cumulative solar PV capacity, with 1,577 total MW's of solar PV installed. This means that 0.70% of Sweden's total energy as a country comes from solar PV (that's 39th in the world). Each year Sweden is generating 152 Watts from solar PV per capita (Sweden ranks 34th in the world for solar PV Watts generated per capita). [source]

Are there incentives for businesses to install solar in Sweden?

Yes, there are several incentives for businesses wanting to install solar energy in Sweden. The Swedish Energy Agency offers a number of grants and subsidies for businesses that want to invest in renewable energy sources such as solar power. Additionally, the government has implemented a feed-in tariff system which guarantees a fixed price for electricity generated from renewable sources such as solar. This helps to make investing in solar more attractive and financially viable for businesses.

Do you have more up to date information than this on incentives towards solar PV projects in Sweden? 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.