Kerava, Uusimaa, Finland, situated at latitude 60.4109 and longitude 25.0936, presents a challenging environment for year-round solar energy generation. Located in the Northern Temperate Zone, this area experiences significant seasonal variations in solar output, which greatly impacts the efficiency of photovoltaic (PV) systems.

Seasonal Solar Performance

Solar energy production in Kerava fluctuates dramatically throughout the year. Summer months yield the highest output at 5.72 kWh per day for each kilowatt of installed solar capacity. Spring follows with a respectable 3.96 kWh/day. However, autumn sees a significant drop to 1.40 kWh/day, while winter plummets to a mere 0.50 kWh/day.

These figures highlight that the most ideal time for solar energy generation in Kerava is from late spring through early autumn. During this period, longer daylight hours and higher sun angles contribute to increased solar panel efficiency.

Optimal Panel Installation

To maximize year-round solar production in Kerava, Uusimaa, fixed solar panels should be tilted at a 50-degree angle facing south. This optimal angle helps capture the most sunlight throughout the year, considering the location's latitude and seasonal sun paths.

Environmental and Weather Factors

Several factors can impede solar production in Kerava:

1. Long, dark winters: With extremely short days and low sun angles, winter severely limits solar energy generation.
2. Snow accumulation: Frequent snowfall can cover panels, reducing their efficiency.
3. Cloud cover: The region experiences significant cloud cover, particularly in autumn and winter.

Preventative Measures

To mitigate these challenges and enhance solar energy production, consider the following measures:

• Install snow-shedding systems or regularly clear snow from panels.
• Use high-efficiency panels designed for low-light conditions.
• Implement a dual-axis tracking system to maximize sun exposure.
• Consider combining solar with other renewable energy sources for year-round reliability.

While Kerava's location poses challenges for solar energy production, particularly in winter, implementing these strategies can help optimize the system's performance and make solar a viable part of the local energy mix.

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

Link: Solar PV potential in Finland by location

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

Seasonal solar PV output for Latitude: 60.4109, Longitude: 25.0936 (Kerava, Finland), 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 Kerava, Finland

To maximize your solar PV system's energy output in Kerava, Finland (Lat/Long 60.4109, 25.0936) 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 Kerava, Finland

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 Kerava, Finland. 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	62° 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 Kerava, Finland

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 Kerava, Finland.

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 Kerava, Finland

Kerava, a city in southern Finland, is situated in a region characterized by gently rolling terrain typical of the Finnish landscape. The area around Kerava features a mix of low-lying plains and modest hills, with elevations generally ranging from 30 to 80 meters above sea level. The topography is largely shaped by glacial activity from the last ice age, resulting in a landscape dotted with small lakes, streams, and forested areas. The surrounding region is part of the Finnish lake plateau, which extends across much of southern and central Finland. This plateau is known for its numerous lakes and waterways, although the immediate vicinity of Kerava is not as densely populated with water bodies as some other parts of the country. The land is primarily composed of glacial till and bedrock, with some areas of clay soil in lower-lying regions.

Suitability for Large-Scale Solar PV

When considering areas nearby Kerava for large-scale solar photovoltaic (PV) installations, several factors come into play. The most suitable locations would be open, relatively flat areas with minimal shading from trees or buildings. These conditions can be found in some of the agricultural lands and cleared areas to the north and east of Kerava. The gently sloping terrain in these directions provides opportunities for solar panels to be oriented optimally towards the south, maximizing their exposure to sunlight. Additionally, areas with slightly elevated positions might be preferable, as they are less likely to be affected by morning fog or mist that can sometimes accumulate in lower-lying areas. It's worth noting that while southern Finland receives less sunlight than more southerly European countries, advancements in solar technology have made PV installations increasingly viable in this region. The long summer days in Finland can partially compensate for the reduced sunlight during winter months. However, potential sites would need to be carefully evaluated for their proximity to existing power infrastructure, accessibility for construction and maintenance, and potential environmental impacts. Areas of particular ecological significance or those designated for conservation would likely be unsuitable for large-scale solar developments. In conclusion, while the topography around Kerava is generally favorable for solar PV installations, the selection of specific sites would require detailed assessments to ensure optimal performance and minimal environmental impact.

Finland solar PV Stats as a country

Finland ranks 59th in the world for cumulative solar PV capacity, with 404 total MW's of solar PV installed. This means that 0.30% of Finland's total energy as a country comes from solar PV (that's 41st in the world). Each year Finland is generating 73 Watts from solar PV per capita (Finland ranks 45th in the world for solar PV Watts generated per capita). [source]

Are there incentives for businesses to install solar in Finland?

Yes, there are incentives for businesses wanting to install solar energy in Finland. The Finnish government offers a range of financial support and tax incentives for businesses that invest in renewable energy sources such as solar power. This includes grants, loans, and tax deductions. Additionally, the government has set up a feed-in tariff system which guarantees a fixed price for electricity generated from renewable sources such as solar power.

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