Kongsberg, Buskerud, Norway, located at latitude 59.6773° and longitude 9.6926° in the Northern Temperate Zone, experiences significant seasonal variations in solar PV energy generation throughout the year. The potential for solar power at this location shows a stark contrast between summer productivity and winter scarcity.

Seasonal Solar Production

Solar panels in Kongsberg produce their highest output during summer months, generating approximately 5.67 kWh per day for each kW of installed capacity. Spring follows as the second most productive season with 4.22 kWh/day per kW installed. Energy production drops considerably during autumn to 1.53 kWh/day, while winter yields the lowest output at just 0.63 kWh/day per kW of installed capacity.

This pattern creates a nearly tenfold difference between summer and winter production, with summer generating about nine times more energy than the winter months. The substantial seasonal variation means that solar installations in Kongsberg will produce approximately 78% of their annual energy during just spring and summer combined.

Optimal Panel Installation

For fixed solar panel installations in Kongsberg, Buskerud, the ideal tilt angle to maximize year-round energy production is 50 degrees facing South. This angle optimizes the capture of available sunlight across all seasons, balancing the low winter sun angles with higher summer sun positions.

Environmental Challenges and Solutions

Several environmental factors can impact solar production at this northern latitude:

• Snow accumulation during winter months can significantly reduce already limited winter production by covering panels
• Frequent cloud cover in the region, particularly during autumn and winter
• Potential shading from surrounding trees and buildings, especially when the sun is at lower angles
• Shorter effective production hours during winter

To mitigate these challenges, several preventative measures can be implemented:

• Install panels at the steeper 50-degree angle, which helps shed snow more effectively
• Consider snow-removal systems or regular manual clearing during winter months
• Ensure proper spacing between panel rows to minimize inter-row shading
• Conduct thorough shade analysis before installation to avoid obstructions
• Use high-efficiency panels that perform better in low-light conditions

While Kongsberg's location isn't ideal for year-round solar production due to its significant seasonal variations, properly designed systems can still provide substantial energy during spring and summer months, potentially offsetting much of a household's annual electricity needs when combined with adequate storage solutions.

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

Link: Solar PV potential in Norway by location

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

Seasonal solar PV output for Latitude: 59.6773, Longitude: 9.6926 (Kongsberg, Norway), 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 50° South in Kongsberg, Norway

To maximize your solar PV system's energy output in Kongsberg, Norway (Lat/Long 59.6773, 9.6926) throughout the year, you should tilt your panels at an angle of 50° 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 Kongsberg, Norway

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 Kongsberg, Norway. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 50° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
43° South in Summer	61° South in Autumn	72° South in Winter	52° 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 Kongsberg, Norway

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 Kongsberg, Norway.

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 Kongsberg, Norway

Kongsberg, Norway, nestled in the southeastern part of the country, presents a diverse topographical landscape characterized by gentle valleys, rolling hills, and forested terrain. The area sits within the Buskerud region, with the Numedalslågen river flowing through the town center, carving a valley that has historically supported mining and industrial activities.

Terrain Features

The landscape surrounding Kongsberg is predominantly hilly and wooded, with elevations generally ranging between 100-600 meters above sea level. The town itself is situated in a valley, with higher elevations rising to the east and west. This valley orientation runs roughly north-south, following the course of the Numedalslågen river which has played a significant role in shaping the local topography through centuries of erosion. The eastern areas feature more gradual slopes transitioning into the forests that extend toward Oslo, while the western regions present more pronounced hills and small mountains that eventually lead toward the Hardangervidda plateau further west. These western slopes often have greater elevation changes over shorter distances.

Vegetation and Land Cover

Coniferous forests dominate the landscape, particularly pine and spruce, covering many of the hillsides surrounding Kongsberg. These dense forests alternate with occasional clearings, agricultural areas in the flatter valley sections, and some exposed rocky outcrops at higher elevations. The combination of forests and varied terrain creates numerous microclimates throughout the region.

Solar PV Suitability Assessment

For large-scale solar photovoltaic installations, several factors related to the topography must be considered. The most promising areas near Kongsberg would include: The more open, south-facing slopes located primarily to the north and northeast of the town center present favorable conditions. These areas benefit from reduced shadowing effects and optimal sun exposure throughout the day. Specifically, the gradually sloping terrain between Kongsberg and Skollenborg offers several potential sites with favorable orientation. The slightly elevated plateaus and clearings to the southeast of Kongsberg, extending toward Darbu and Vestfossen, provide relatively flat terrain that would minimize installation complexities while still offering good exposure. These areas have fewer tall forest stands that might otherwise create shading issues. Some agricultural areas in the broader Numedal valley, particularly those with minimal north-facing slopes, could accommodate larger installations. These locations typically have existing access roads and fewer forest clearing requirements, reducing development costs and environmental impact.

Topographical Challenges

Despite these opportunities, several topographical factors present challenges for large-scale solar development near Kongsberg. The prevalence of forests requires careful site selection to minimize clearing requirements. Additionally, the varied terrain means that many potential sites have some degree of slope, which can complicate construction and potentially reduce overall efficiency compared to perfectly flat installations. The valley orientation also creates some natural shadowing effects, particularly during winter months when the sun angle is lower. This makes proper site selection even more critical, with preference given to locations that maximize exposure during the productive summer months while minimizing shadowing during other seasons. Water drainage patterns must also be considered, as the numerous small streams and seasonal waterways that feed into the Numedalslågen can affect site stability and maintenance requirements over time. Despite these challenges, the diverse topography around Kongsberg does offer several viable options for large-scale solar PV development, particularly when focusing on the more open, south-facing areas with good accessibility and minimal forest cover.

Norway solar PV Stats as a country

Norway ranks 70th in the world for cumulative solar PV capacity, with 225 total MW's of solar PV installed. This means that 0.10% of Norway's total energy as a country comes from solar PV (that's 42nd in the world). Each year Norway is generating 42 Watts from solar PV per capita (Norway ranks 55th in the world for solar PV Watts generated per capita). [source]

Are there incentives for businesses to install solar in Norway?

Yes, there are several incentives for businesses wanting to install solar energy in Norway. The Norwegian government offers a range of financial support and tax breaks for businesses that invest in renewable energy sources such as solar power. This includes grants, loans, and tax deductions. Additionally, the Norwegian Energy Agency provides funding for research and development projects related to renewable energy technologies. Finally, the Norwegian Power Company (Statkraft) offers discounted electricity rates for businesses that use solar power.

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