Solar PV Analysis of Tangerang, Indonesia
Tangerang, Banten, Indonesia is a pretty good spot for generating solar energy all year round because it's in the Tropics where sunlight is fairly consistent throughout the year. The amount of solar energy that can be generated varies slightly with each season, but not by much. You can expect to generate around 4.68kWh/day in Summer, 5.33kWh/day in Autumn, 5.06kWh/day in Winter and 5.40kWh/day in Spring per kW of installed solar.
The best times of the year to generate solar at this location are during Autumn and Spring when the sun is most powerful and direct; however, even during Summer and Winter, you're still going to get a decent amount of energy from your panels.
If you're installing fixed panel solar at this location, tilting your panels at an angle of 7 degrees North will give you maximum total production from your panels over the course of a year.
As for local factors that could affect your solar production - Tangerang does have its wet season which could potentially reduce sunlight exposure on some days due to cloud cover or rainfall; however, remember that even on cloudy days some sunlight still gets through so it's not as if your panels will be useless during these periods.
To ensure greater energy production despite these factors you might want to consider investing in high-quality panels that perform well under different light conditions and possibly also having an efficient battery storage system so any excess power generated on particularly sunny days isn't wasted but stored for use later when sunlight might be less optimal.
In terms of topography or other environmental factors - Tangerang is quite flat which is ideal for catching maximum sun exposure; there aren't many hills or mountains casting shadows over potential installation sites which would impede panel performance. However as always before installing it's important to do a site assessment just to make sure there are no localised issues like tall buildings or trees that might cast shadows over your panels.
So overall, Tangerang is a pretty good location for solar energy generation with just a few considerations to keep in mind to maximise your system's performance.
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 Tangerang
Seasonal solar PV output for Latitude: -6.177, Longitude: 106.6284 (Tangerang, 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 Tangerang, Indonesia
To maximize your solar PV system's energy output in Tangerang, Indonesia (Lat/Long -6.177, 106.6284) 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 Tangerang, 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 Tangerang, 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 Tangerang, 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 Tangerang, 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 Tangerang, Indonesia
Tangerang, Indonesia is located on the western border of Jakarta in the province of Bataan. It's largely a flat area with an average elevation of approximately 25 meters above sea level. The region features a tropical climate with high temperatures and humidity throughout the year, as well as significant rainfall.
The topography around Tangerang is predominantly urbanized and industrialized due to its proximity to Jakarta. However, there are also some agricultural areas and open lands towards the outskirts of Tangerang.
For large-scale solar PV installations, open land or agricultural areas would be most suitable because they provide plenty of space for solar panels and have good sun exposure throughout the year. In addition, rooftops in urban areas can be used for smaller-scale solar PV installations.
However, it's important to note that although Indonesia has high potential for solar energy due to its equatorial location (which ensures consistent sunlight throughout the year), factors such as cloud cover and high humidity can affect efficiency of photovoltaic systems. Therefore, site selection needs to consider these local climatic conditions along with topography.
Moreover, any large-scale renewable energy project requires careful consideration not only from a technical standpoint but also from social-economic-environmental perspectives including land ownership issues and potential impact on local communities or ecosystems.
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!
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Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Thursday 15th of February 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.
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.
