Hommelvik, Trøndelag, Norway, situated at 63.4127° North, 10.7924° East, presents some distinct challenges for solar PV energy generation due to its northern location. The seasonal variation in electricity output is quite dramatic, with significant differences between summer and winter production.

Seasonal Solar Production

Solar panels in Hommelvik would generate their highest output during summer months, producing approximately 4.85 kWh per day for each kilowatt of installed capacity. Spring follows as the second most productive season with 3.76 kWh/day per kW installed. However, production drops dramatically in autumn to just 1.05 kWh/day, and reaches its minimum in winter with a mere 0.34 kWh/day per kW of installed capacity.

This extreme seasonal variation means that Hommelvik is far from ideal for year-round solar energy production. The location experiences a nearly 14-fold difference between summer and winter daily production rates, creating challenges for consistent energy supply throughout the year.

Optimal Panel Installation

For fixed panel installations in Hommelvik, Trøndelag, the ideal tilt angle to maximize year-round production is 52 degrees facing South. This angle has been calculated by analyzing daily solar elevation patterns at this latitude, weighted by the potential daily PV production based on NASA's solar irradiance data, while accounting for Earth's elliptical orbit.

Environmental and Weather Challenges

Several significant factors could impede solar production at this northern location:

• Snow accumulation during the long winter months can completely cover panels, essentially eliminating already minimal winter production
• Frequent cloud cover in the region, particularly during autumn and winter
• Low sun angles during winter months can increase shading issues from nearby objects
• The maritime climate can lead to salt spray deposits on panels near the fjord

Preventative Measures

To mitigate these challenges, several installation strategies can be employed:

• Install panels at steeper angles (beyond the 52° optimum) to promote snow sliding off
• Implement regular cleaning schedules, especially after snowfall and during spring thaw
• Use micro-inverters or power optimizers to minimize the impact of partial shading
• Consider tracking systems that can adjust panel orientation to maximize the limited winter sunlight
• Ensure panels are installed high enough to avoid snow drifts and potential shading from surrounding trees or structures

While Hommelvik can produce substantial solar energy during summer and spring, the extremely low winter output means that solar PV would need to be supplemented with other energy sources to provide reliable year-round power. The location is best suited for seasonal solar production rather than as a primary year-round energy source.

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 Hommelvik

Seasonal solar PV output for Latitude: 63.4127, Longitude: 10.7924 (Hommelvik, 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 52° South in Hommelvik, Norway

To maximize your solar PV system's energy output in Hommelvik, Norway (Lat/Long 63.4127, 10.7924) throughout the year, you should tilt your panels at an angle of 52° 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 Hommelvik, 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 Hommelvik, Norway. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 52° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
46° South in Summer	64° South in Autumn	74° South in Winter	54° 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 Hommelvik, 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 Hommelvik, 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 Hommelvik, Norway

Hommelvik is a small coastal town situated in the municipality of Malvik, in Trøndelag county, Norway. The town is nestled along the northern shore of the Trondheimsfjord, approximately 25 kilometers east of Trondheim, Norway's third-largest city. The topography of Hommelvik and its surrounding areas is characterized by a diverse landscape that includes coastal lowlands, gentle hills, and more elevated forested terrain. The immediate area around Hommelvik features a relatively narrow coastal plain that quickly gives way to rising terrain. The land gradually ascends from sea level at the fjord to hills that reach several hundred meters in elevation within a short distance from the coast. This creates a somewhat amphitheater-like setting, with the town cradled between the fjord and the surrounding higher ground.

Coastal Features

Along the shoreline, the terrain is generally flat to gently sloping, with some rocky outcrops and small beaches. The Trondheimsfjord provides a significant geographical feature, creating a microclimate that somewhat moderates the local temperature compared to inland areas at similar latitudes.

Inland Topography

Moving inland from Hommelvik, the landscape becomes increasingly undulating with a series of hills and small valleys. The terrain is heavily forested, predominantly with coniferous trees such as pine and spruce, interspersed with some deciduous species. Several small streams and brooks flow from the higher elevations down to the fjord, creating minor valleys and ravines throughout the area. The highest elevations near Hommelvik reach approximately 400-500 meters above sea level within a few kilometers of the coast. These hills form part of a larger system of elevated terrain that extends throughout much of the region. The topography becomes more rugged and mountainous as one moves further inland and eastward.

Potential Areas for Solar PV Development

For large-scale solar photovoltaic (PV) installations, several factors related to topography must be considered, including slope orientation, elevation, and shading effects. Based on the topographical features around Hommelvik, the following areas appear most suitable: The south-facing slopes of hills north of Hommelvik offer promising locations for solar PV development. These areas benefit from favorable orientation toward the sun's path, particularly during the summer months when solar radiation is most abundant at this northern latitude. The elevated positions also help minimize shading from adjacent terrain features. Some of the more gently sloping agricultural lands slightly inland from the coast could also be suitable. These areas typically have been previously cleared of forest, offering open spaces with less shading from vegetation. The relatively flat terrain would simplify installation and maintenance of large-scale solar arrays. The coastal plain areas, while flat and accessible, may not be ideal due to potential development conflicts with existing settlements and infrastructure. Additionally, these lower elevations may experience more fog and low cloud cover from the fjord, potentially reducing solar radiation. Areas to avoid would include north-facing slopes, deeply shadowed valleys, and the highest elevation points where weather conditions might be more severe and access more challenging. It's worth noting that at this northern latitude (63.4°N), the seasonal variation in daylight is extreme, with very long days in summer and very short days in winter. This characteristic would need to be carefully factored into any solar PV project planning, as production would be highly seasonal regardless of the topographical situation.

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.