Dimona, Southern District, Israel is exceptionally well-suited for year-round solar energy generation, ranking among the world's most favorable locations for photovoltaic installations. Located in the Northern Sub Tropics at coordinates 31.0671°N, 35.0336°E, this desert city benefits from abundant sunshine and minimal cloud cover throughout the year.

Seasonal Solar Performance

The solar energy output varies significantly across seasons, with summer being the peak production period. During summer months, each kilowatt of installed solar capacity generates an impressive 8.79 kWh per day, making this the ideal time for maximum energy harvest. Spring follows as the second-best season with 7.50 kWh per day per kilowatt installed. Autumn production drops to 5.47 kWh per day per kilowatt, while winter represents the lowest output period at 3.74 kWh per day per kilowatt. Despite winter being the weakest season, the production levels remain substantial compared to many other global locations, demonstrating the location's year-round viability.

Optimal Panel Configuration

For maximum annual energy production at Dimona, Southern District, solar panels should be installed at a fixed tilt angle of 26 degrees facing south. This optimal angle is calculated by analyzing daily solar elevation angles throughout the year, determining daily optimal panel positioning, and weighting these angles according to photovoltaic potential using solar irradiance data while accounting for Earth's elliptical orbit.

Environmental Challenges and Solutions

Despite Dimona's excellent solar potential, several environmental factors can impede energy production and require careful consideration during installation. Dust and Sand Accumulation represents the most significant challenge. The desert location means constant exposure to airborne particles that accumulate on panel surfaces, reducing light transmission and energy output. Regular cleaning schedules are essential, ideally using automated cleaning systems or water-efficient manual cleaning methods. Installing panels with anti-soiling coatings can also help reduce dust adhesion. Extreme Heat can paradoxically reduce solar panel efficiency despite increased sunlight. While panels need sunlight to generate electricity, excessive heat causes voltage drops and reduced power output. Proper ventilation spacing beneath panels and choosing panels with better temperature coefficients helps mitigate this issue. Occasional Sandstorms can temporarily block sunlight and deposit large amounts of abrasive material on panels. Installing protective barriers around solar installations and ensuring robust mounting systems that can withstand high winds are crucial preventative measures. Water Scarcity affects panel cleaning operations in this arid region. Implementing water-recycling systems for panel cleaning, using deionized water to prevent mineral deposits, or investing in dry cleaning technologies can address this challenge while maintaining optimal panel performance. The combination of Dimona's exceptional solar resource and proper installation techniques to address local environmental factors makes this location highly attractive for both residential and commercial solar energy projects throughout the entire year.

Note: The Northern Sub Tropics extend from 23.5° latitude North up to 35° latitude.

So far, we have conducted calculations to evaluate the solar photovoltaic (PV) potential in 100 locations across Israel. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.

Link: Solar PV potential in Israel by location

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

Seasonal solar PV output for Latitude: 31.0671, Longitude: 35.0336 (Dimona, Israel), 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 26° South in Dimona, Israel

To maximize your solar PV system's energy output in Dimona, Israel (Lat/Long 31.0671, 35.0336) throughout the year, you should tilt your panels at an angle of 26° 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 Dimona, Israel

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 Dimona, Israel. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 26° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
15° South in Summer	36° South in Autumn	46° South in Winter	23° 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 Dimona, Israel

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 Dimona, Israel.

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 Dimona, Israel

Topography Around Dimona

Dimona sits in the northern Negev Desert of Israel, positioned on a plateau at an elevation of approximately 600 meters above sea level. The surrounding landscape is characterized by rolling hills and gentle slopes that gradually descend toward the Dead Sea to the east and continue southward into the more expansive desert regions. The terrain consists primarily of limestone and chalk formations typical of the Judean Desert periphery, creating a relatively stable geological foundation.

The immediate area around Dimona features undulating topography with numerous wadis (dry riverbeds) cutting through the landscape. These seasonal watercourses create natural drainage patterns that flow eastward toward the Dead Sea basin. The terrain is generally arid with sparse vegetation, consisting mainly of desert shrubs and hardy perennial plants adapted to the semi-arid climate conditions.

To the west and southwest of Dimona, the landscape opens up into broader, flatter expanses of desert terrain. These areas represent some of the most geologically stable and accessible portions of the northern Negev, with minimal elevation changes and few natural obstacles. The bedrock in these western areas consists primarily of sedimentary formations that provide excellent structural support for large-scale installations.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for extensive solar photovoltaic installations lie in the relatively flat desert areas west and southwest of Dimona. These zones offer several key advantages including minimal topographical variation, which reduces construction complexity and costs associated with ground preparation and panel mounting systems. The terrain in these areas typically features gentle slopes of less than 5 degrees, making them ideal for large solar arrays.

The areas northwest of the city, extending toward the Rotem Plain, present particularly favorable conditions for solar development. This region combines flat or gently rolling terrain with excellent accessibility via existing road networks. The geological stability of the limestone bedrock provides reliable foundations for heavy solar infrastructure, while the sparse vegetation minimizes environmental clearing requirements.

South and southeast of Dimona, the terrain becomes more suitable for solar installations as it transitions into the broader Negev Desert. These areas benefit from expansive open spaces with minimal competing land uses. The relatively uniform elevation and absence of significant geological features such as deep wadis or rocky outcrops make these locations highly practical for grid-scale solar facilities.

The eastern approaches toward the Dead Sea basin, while offering some flat areas, present challenges due to the more dramatic elevation changes and increased density of wadi systems. However, selected plateaus and elevated flat areas in this direction could still accommodate smaller-scale solar installations, particularly where existing infrastructure provides adequate access for construction and maintenance activities.

Israel solar PV Stats as a country

Israel ranks 29th in the world for cumulative solar PV capacity, with 2,555 total MW's of solar PV installed. This means that 4.70% of Israel's total energy as a country comes from solar PV (that's 17th in the world). Each year Israel is generating 277 Watts from solar PV per capita (Israel ranks 16th in the world for solar PV Watts generated per capita). [source]

Are there incentives for businesses to install solar in Israel?

Yes, there are several incentives for businesses wanting to install solar energy in Israel. The Israeli government offers a variety of financial incentives and subsidies for businesses that install solar energy systems. These include grants, tax credits, and low-interest loans. Additionally, the government has implemented a feed-in tariff program which guarantees a fixed price for electricity generated from renewable sources such as solar power. This helps to ensure that businesses can recoup their investment in solar energy over time.

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