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Flag of DenmarkSolar PV Analysis of Haslev, Denmark

Graph of hourly avg kWh electricity output per kW of Solar PV installed in Haslev, Denmark (by season)

Haslev, Zealand, Denmark, situated at 55.3229° North, 11.9675° East, presents a location with notable seasonal variations for solar PV electricity generation. The energy output fluctuates significantly throughout the year, with the highest production occurring during summer months.

Seasonal Solar Production

Solar panels in Haslev demonstrate strong seasonal patterns in electricity generation. During summer, panels produce an impressive 5.49kWh per day for each kilowatt installed, making this the prime season for solar energy harvesting. Spring follows as the second most productive season with 4.29kWh/day per kW installed.

Autumn sees a substantial decline to 1.82kWh/day, while winter production drops dramatically to just 0.76kWh/day per kW installed. This creates a nearly 7:1 ratio between summer and winter production, highlighting the significant seasonal variation at this northern European location.

Optimal Panel Installation

For fixed solar panel installations in Haslev, Zealand, the ideal tilt angle to maximize year-round energy production is 46 degrees facing South. This specific angle has been calculated to optimize annual solar collection by accounting for the location's latitude and seasonal solar elevation changes.

Challenges and Mitigation Strategies

Several environmental factors may impact solar production in Haslev:

  • Snow accumulation during winter months can significantly reduce already low winter production if not addressed. Installing panels at the recommended 46-degree angle helps with natural snow shedding.
  • Cloud cover is common in Denmark, particularly during autumn and winter. Using high-efficiency panels designed for diffuse light conditions can help maximize energy capture during overcast periods.
  • Potential shading from trees, buildings, or other structures is particularly problematic at this northern latitude where the sun's path is lower in the sky. Careful site assessment and possibly tree trimming may be necessary.
  • Salt spray can be an issue in coastal Denmark, potentially causing corrosion. Marine-grade panel frames and mounting hardware are recommended even for this inland location.

Overall, Haslev represents a location where solar PV is highly productive during warmer months but requires careful planning to maximize year-round benefits. The dramatic seasonal variation suggests that battery storage or grid connection is essential to balance the summer abundance with winter scarcity.

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

Link: Solar PV potential in Denmark by location

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

Seasonal solar PV output for Latitude: 55.3229, Longitude: 11.9675 (Haslev, Denmark), 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:

Summer
Average 5.49kWh/day in Summer.
Autumn
Average 1.82kWh/day in Autumn.
Winter
Average 0.76kWh/day in Winter.
Spring
Average 4.29kWh/day in Spring.

 

Ideally tilt fixed solar panels 46° South in Haslev, Denmark

To maximize your solar PV system's energy output in Haslev, Denmark (Lat/Long 55.3229, 11.9675) throughout the year, you should tilt your panels at an angle of 46° 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.

The sun
At Latitude: 55.3229, Longitude: 11.9675, the ideal angle to tilt panels is 46° South

Seasonally adjusted solar panel tilt angles for Haslev, Denmark

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 Haslev, Denmark. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 46° South tilt angle throughout the year.

Overall Best Summer Angle Overall Best Autumn Angle Overall Best Winter Angle Overall Best Spring Angle
39° South in Summer 57° South in Autumn 68° South in Winter 47° South in Spring

Assuming you can modify the tilt angle of your solar PV panels throughout the year, you can optimize your solar generation in Haslev, Denmark as follows: In Summer, set the angle of your panels to 39° facing South. In Autumn, tilt panels to 57° facing South for maximum generation. During Winter, adjust your solar panels to a 68° angle towards the South for optimal energy production. Lastly, in Spring, position your panels at a 47° angle facing South to capture the most solar energy in Haslev, Denmark.

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 Haslev, Denmark

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 Haslev, Denmark.

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.






Please enter information above to calculate panel spacing.

Topography for solar PV around Haslev, Denmark

The topography surrounding Haslev, Denmark reveals a gently undulating landscape characteristic of Zealand, the largest island in Denmark. Located in the central-southern part of Zealand, Haslev sits within a region that was shaped by glacial activity during the last ice age, resulting in a moderately rolling terrain with subtle hills and shallow valleys. The elevation around Haslev is relatively modest, generally ranging between 30 to 70 meters above sea level, with few dramatic changes in altitude. The landscape consists primarily of agricultural fields interspersed with small woodlands and scattered settlements. The soil composition is predominantly fertile moraine clay, which has made the region historically valuable for farming. Several small streams and minor watercourses traverse the area, creating natural drainage patterns across the gentle slopes.

Optimal Areas for Solar PV Development

When considering large-scale solar photovoltaic installations near Haslev, several topographical factors become important. The most suitable areas would be the gently south-facing slopes found in the agricultural lands surrounding the town. These subtle inclines provide natural advantages for solar collection efficiency compared to perfectly flat terrain. Particularly promising are the open agricultural areas to the south and southwest of Haslev, where the combination of slightly elevated terrain and minimal shadowing from trees or structures creates favorable conditions. These areas benefit from good exposure throughout the day, with minimal obstruction from natural features. The relatively flat fields to the east of Haslev also present opportunities for large-scale solar development, though they lack the slight advantageous tilt of the southern slopes. These areas offer extensive contiguous spaces that could accommodate substantial solar arrays without requiring significant terrain modification. Areas to avoid would include the scattered woodland patches, particularly the larger forested area northwest of Haslev, as well as the more densely populated residential zones and lands immediately adjacent to watercourses. The small valleys with north-facing slopes would also be suboptimal due to reduced direct exposure. The general absence of extreme topographical features in the Haslev region means that most open agricultural areas could potentially support solar PV development with minimal need for extensive land preparation or terracing. This relatively uniform landscape presents fewer technical challenges for construction and maintenance of large-scale solar installations compared to more varied terrain found in other regions of Europe.

Denmark solar PV Stats as a country

Denmark ranks 37th in the world for cumulative solar PV capacity, with 1,540 total MW's of solar PV installed. This means that 4.10% of Denmark's total energy as a country comes from solar PV (that's 19th in the world). Each year Denmark is generating 264 Watts from solar PV per capita (Denmark ranks 18th in the world for solar PV Watts generated per capita). [source]

Are there incentives for businesses to install solar in Denmark?

Yes, there are several incentives for businesses wanting to install solar energy in Denmark. The Danish 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 Danish Energy Agency provides subsidies for businesses that install solar panels on their premises. Finally, some local authorities offer additional incentives such as reduced electricity bills or free installation of solar panels.

Do you have more up to date information than this on incentives towards solar PV projects in Denmark? Please reach out to us and help us keep this information current. Thanks!

Citation Guide

Article Details for Citation

Article: Solar PV Analysis of Haslev, Denmark
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Saturday 24th of May 2025
Last Updated: Friday 5th of December 2025

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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.

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