Tanjungpura, West Java, Indonesia, located in the tropics, presents a promising location for solar energy generation. This area experiences consistent sunlight throughout the year, with seasons characterized more by wet and dry periods rather than traditional temperature-based seasons.
Year-round Solar Production
The solar energy potential in Tanjungpura is remarkably stable across all meteorological seasons. Spring sees the highest output at 5.60 kWh per day for each kilowatt of installed solar capacity, closely followed by autumn at 5.48 kWh/day. Winter maintains a strong performance at 5.28 kWh/day, while summer, interestingly, has the lowest output at 4.57 kWh/day. This consistent performance throughout the year makes Tanjungpura an ideal location for solar PV installations. The relatively small variation between seasons suggests that solar energy systems here can provide a reliable power source year-round, without significant seasonal fluctuations that are common in many other parts of the world.Optimal Panel Tilt
For fixed panel installations in Tanjungpura, West Java, the ideal tilt angle to maximize year-round solar production is 7 degrees North. This slight tilt helps to optimize the panels' exposure to sunlight throughout the year, taking into account the location's proximity to the equator and the sun's path across the sky.Environmental Considerations
While Tanjungpura's tropical climate is generally favorable for solar energy production, there are some environmental factors to consider: 1. Heavy rainfall: The region experiences a wet season, which could temporarily reduce solar output. 2. High humidity: This can lead to increased dust accumulation on panels, potentially reducing efficiency. To mitigate these issues, regular cleaning and maintenance of solar panels is crucial. Installing panels at the recommended tilt angle can also help with natural cleaning during rainfall. Additionally, using high-quality, weather-resistant solar equipment designed for tropical climates can ensure better performance and longevity. In conclusion, Tanjungpura's location offers excellent potential for solar energy production throughout the year. With proper installation and maintenance, solar PV systems in this area can provide a reliable and efficient source of renewable energy.Note: The Tropics are located between 23.5° North and -23.5° South of the equator.
So far, we have conducted calculations to evaluate the solar photovoltaic (PV) potential in 151 locations across Indonesia. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Indonesia by location
Solar output per kW of installed solar PV by season in Tanjungpura
Seasonal solar PV output for Latitude: -6.2762, Longitude: 107.2661 (Tanjungpura, Indonesia), 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 7° North in Tanjungpura, Indonesia
To maximize your solar PV system's energy output in Tanjungpura, Indonesia (Lat/Long -6.2762, 107.2661) throughout the year, you should tilt your panels at an angle of 7° North 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 Tanjungpura, Indonesia
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 Tanjungpura, Indonesia. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 7° North tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 10° South in Summer | 13° North in Autumn | 22° North in Winter | 1° North 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 Tanjungpura, Indonesia
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 Tanjungpura, Indonesia.
Our calculation method
- Solar Position:
We determine the Sun's position on the Winter solstice using the location's latitude and solar declination. - Shadow Projection:
We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle. - 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 Tanjungpura, Indonesia
The area around Tanjungpura, Indonesia, is characterized by relatively flat coastal plains with some gently rolling terrain. This region is part of the northern coast of Java, known as the "Pantura" (Pantai Utara, or North Coast). The landscape is predominantly low-lying, with elevations generally ranging from sea level to about 50 meters above sea level.
The topography in this area is heavily influenced by its proximity to the Java Sea. The coastline features numerous estuaries, where rivers flowing from the interior of Java meet the sea. These river deltas have created expansive areas of wetlands and mangrove forests near the coast. As you move inland from Tanjungpura, the terrain gradually becomes more undulating, with small hills and shallow valleys interspersed throughout the landscape.
The region surrounding Tanjungpura is largely agricultural, with vast stretches of rice paddies, crop fields, and fish farms dominating the landscape. Scattered throughout this agricultural belt are small villages and towns, connected by a network of roads that crisscross the flat terrain.
For large-scale solar PV installations, the areas best suited would be the open, flat agricultural lands slightly inland from the coast. These locations offer several advantages for solar energy development:
- Abundant sunlight: The region experiences a tropical climate with ample sunshine year-round.
- Minimal shading: The flat terrain means there are few natural obstacles that could cast shadows on solar panels.
- Accessibility: The well-developed road network in the area would facilitate the transportation of equipment and maintenance access.
- Lower flood risk: While coastal areas may be prone to flooding, sites further inland would be less vulnerable to such risks.
Specific areas that might be particularly suitable for solar PV development include the agricultural lands between Tanjungpura and the cities of Karawang to the east or Bekasi to the southeast. These areas offer large, open spaces with good solar exposure and are close enough to population centers to make power distribution feasible.
However, it's important to note that any large-scale solar development would need to carefully consider the impact on local agriculture and livelihoods, as well as potential environmental effects on the region's ecosystems. Proper planning and community engagement would be crucial for successful implementation of such projects in this area.
Indonesia solar PV Stats as a country
Indonesia ranks 71st in the world for cumulative solar PV capacity, with 211 total MW's of solar PV installed. Each year Indonesia is generating 1 Watts from solar PV per capita (Indonesia ranks 88th in the world for solar PV Watts generated per capita). [source]
Are there incentives for businesses to install solar in Indonesia?
Yes, there are several incentives for businesses wanting to install solar energy in Indonesia. The Indonesian government has implemented a number of policies and programs to encourage the adoption of renewable energy sources such as solar power. These include tax exemptions, subsidies, feed-in tariffs, and other financial incentives. Additionally, the government has established a Renewable Energy Fund which provides grants for research and development projects related to renewable energy technologies.
Do you have more up to date information than this on incentives towards solar PV projects in Indonesia? Please reach out to us and help us keep this information current. Thanks!
Citation Guide
Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Thursday 1st of August 2024
Last Updated: Monday 21st of July 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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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.




