Flag of United States

Flag of RomaniaSolar PV Analysis of Lazu, Romania

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

Lazu, Constanța County, Romania, situated in the Northern Temperate Zone at coordinates 44.1161, 28.6123, presents a moderate location for solar PV energy generation with significant seasonal variations. This coastal Black Sea location experiences substantial differences in solar production throughout the year, which affects its overall suitability for solar energy investments.

Seasonal Solar Production

Solar energy output at this location follows a predictable seasonal pattern. Summer stands out as the most productive period, generating approximately 6.94kWh per day for each kilowatt of installed capacity. Spring follows as the second most productive season with 5.12kWh/day. Energy production decreases considerably in autumn to 3.18kWh/day, while winter shows the lowest output at just 1.58kWh/day per kilowatt installed.

This pattern creates a substantial difference between summer and winter production, with summer generating more than four times the electricity of winter months. This seasonal variability means that while the location can provide excellent energy during warmer months, supplementary energy sources would likely be necessary during the colder season.

Optimal Panel Installation

For fixed solar panel installations in Lazu, Constanța County, the ideal tilt angle to maximize year-round energy production is 37 degrees facing South. This specific angle optimizes the capture of solar radiation throughout the year, balancing the lower winter sun path with the higher summer sun position. Proper installation at this angle can significantly improve the overall efficiency of the system.

Environmental and Weather Considerations

Several environmental factors could impact solar production at this Black Sea coastal location. The most significant include:

  • Coastal fog and humidity, which can reduce solar irradiance reaching the panels, particularly during morning hours
  • Winter snow accumulation, which may temporarily cover panels and halt production
  • Salt spray from the Black Sea, which can gradually cause corrosion and degradation of panel components
  • Occasional strong winds from coastal weather systems that might damage mounting structures

Preventative Measures

To mitigate these challenges, several preventative measures can be implemented. Using marine-grade materials and special protective coatings can prevent salt corrosion. Installing panels at the recommended 37-degree angle not only optimizes production but also helps snow to slide off more easily. Robust mounting systems designed for coastal wind conditions will ensure structural integrity during storms.

Regular cleaning schedules are particularly important in this coastal environment to remove salt deposits and other debris. Additionally, implementing micro-inverter or power optimizer technology can help minimize production losses when parts of the array are affected by temporary shading or snow coverage.

Overall, while Lazu isn't an ideal year-round solar location due to its significant winter production drop, it still offers good potential, especially from spring through autumn, when implemented with appropriate system design and preventative measures.

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

Link: Solar PV potential in Romania by location

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

Seasonal solar PV output for Latitude: 44.1161, Longitude: 28.6123 (Lazu, Romania), 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 6.94kWh/day in Summer.
Autumn
Average 3.18kWh/day in Autumn.
Winter
Average 1.58kWh/day in Winter.
Spring
Average 5.12kWh/day in Spring.

 

Ideally tilt fixed solar panels 37° South in Lazu, Romania

To maximize your solar PV system's energy output in Lazu, Romania (Lat/Long 44.1161, 28.6123) throughout the year, you should tilt your panels at an angle of 37° 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: 44.1161, Longitude: 28.6123, the ideal angle to tilt panels is 37° South

Seasonally adjusted solar panel tilt angles for Lazu, Romania

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 Lazu, Romania. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 37° South tilt angle throughout the year.

Overall Best Summer Angle Overall Best Autumn Angle Overall Best Winter Angle Overall Best Spring Angle
28° South in Summer 47° South in Autumn 58° South in Winter 36° 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 Lazu, Romania as follows: In Summer, set the angle of your panels to 28° facing South. In Autumn, tilt panels to 47° facing South for maximum generation. During Winter, adjust your solar panels to a 58° angle towards the South for optimal energy production. Lastly, in Spring, position your panels at a 36° angle facing South to capture the most solar energy in Lazu, Romania.

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 Lazu, Romania

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 Lazu, Romania.

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 Lazu, Romania

The landscape surrounding Lazu, Romania presents a fascinating topographical profile characteristic of Romania's southeastern Dobrogea region. Located at coordinates 44.1161° North, 28.6123° East, Lazu sits in Constanța County, approximately 7 kilometers northwest of the major Black Sea port city of Constanța. The topography of the Lazu area is predominantly characterized by gently rolling plains and plateaus with modest elevation changes. This region forms part of the Dobrogea Plateau, an ancient geological formation that creates a relatively flat to undulating landscape. The elevation around Lazu typically ranges between 20-50 meters above sea level, with gradual slopes rather than steep inclines dominating the terrain.

Geological Features

The underlying geology consists primarily of limestone and loess deposits, creating a stable foundation. The soil composition tends toward chernozem (black earth) soils, which are fertile but not ideally suited for agriculture without irrigation due to the region's relatively dry climate. The limestone bedrock occasionally emerges as small outcroppings in certain areas, adding subtle texture to an otherwise smooth landscape. Water features are minimal in the immediate vicinity of Lazu. The Black Sea lies approximately 10 kilometers to the east, while Lake Siutghiol is situated about 8 kilometers to the northeast. The area lacks significant rivers, though small seasonal streams may appear following precipitation events.

Vegetation and Land Use

Natural vegetation in the region has been significantly altered by human activity. The original steppe grasslands have largely been converted to agricultural use, with scattered patches of drought-resistant shrubs and grasses remaining in uncultivated areas. Trees are relatively sparse, typically appearing as windbreaks between agricultural plots or in small clusters around settlements.

Solar PV Potential Areas

For large-scale solar photovoltaic (PV) installations, several nearby areas present promising characteristics: The plateaus extending west and northwest of Lazu offer excellent potential for solar development. These areas feature flat to gently sloping terrain with minimal shadowing effects from natural features. The open expanses provide ample space for large arrays while requiring minimal grading or terrain modification. Agricultural lands between Lazu and the neighboring communities of Agigea and Valu lui Traian present substantial opportunities. These areas already have access infrastructure in place and feature the level terrain ideal for solar installations. The conversion of these lands would require consideration of agricultural impact, but their topographical characteristics are highly favorable. The slightly elevated areas south of Lazu toward Eforie Nord offer another promising zone. These locations benefit from excellent exposure with minimal obstruction, though proximity to tourist areas might present zoning challenges.

Topographical Advantages for Solar Development

The region's modest relief reduces construction complexity for large-scale solar installations, minimizing costs associated with terrain modification. The general absence of tall natural features means minimal shadowing concerns across potential development sites. The region's soil composition, while agriculturally productive with irrigation, is not exceptionally high-yield without water management. This creates potential for dual-use scenarios where solar installations might coexist with certain agricultural activities, particularly in areas where water availability limits agricultural productivity. The relatively sparse tree cover eliminates concerns about deforestation for solar development, potentially streamlining environmental approval processes. Additionally, the stable limestone bedrock provides solid foundation conditions for mounting systems with minimal risk of subsidence or erosion issues. In summary, the topography surrounding Lazu presents highly favorable conditions for large-scale solar PV development, with gently rolling plains, stable geological foundations, and minimal natural obstructions. The most suitable areas lie in the plateau regions extending west and northwest from Lazu, offering optimal conditions for efficient solar energy production.

Romania solar PV Stats as a country

Romania ranks 39th in the world for cumulative solar PV capacity, with 1,398 total MW's of solar PV installed. This means that 3.40% of Romania's total energy as a country comes from solar PV (that's 24th in the world). Each year Romania is generating 74 Watts from solar PV per capita (Romania ranks 43rd in the world for solar PV Watts generated per capita). [source]

Are there incentives for businesses to install solar in Romania?

Yes, there are incentives for businesses wanting to install solar energy in Romania. The Romanian government offers a number of financial incentives and subsidies for businesses that invest in renewable energy sources such as solar power. These include grants, tax deductions, and other forms of support. Additionally, the government has set up a Renewable Energy Support Scheme (RES) which provides additional funding for projects related to renewable energy sources such as solar power.

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

Citation Guide

Article Details for Citation

Article: Solar PV Analysis of Lazu, Romania
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Monday 9th of June 2025
Last Updated: Monday 21st of July 2025

Tell Us About Your Work

We love seeing how our research helps others! If you've cited this article in your work, we'd be delighted to hear about it. Drop us a line via our Contact Us page or on X, to share where you've used our information - we may feature a link to your work on our site. This helps create a network of valuable resources for others in the solar energy community and helps us understand how our research is contributing to the field. Plus, we occasionally highlight exceptional works that reference our research on our social media channels.

Feeling generous?

"La fel cum soarele încarcă panourile solare, cafeaua ne încarcă și pe noi în cercetarea și dezvoltarea noastră, parcă am fi niște roboți alimentați cu espresso!" 😊
Buy me a coffee - Thanks for your support!

Share this with your friends!



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.

Worldwide Solar PV Analysis of 20,000 Locations

Helping you assess viability of solar PV for your site

profileSOLAR on YouTube

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.

Calculate Your Optimal Solar Panel Tilt Angle