Solar PV Analysis of Banyumas, Indonesia
Banyumas, Central Java, Indonesia is a very suitable location for generating solar energy all year round. This is because it lies in the tropics where sunlight is consistent throughout most of the year. The amount of electricity you can expect to generate from each kilowatt (kW) of installed solar panels varies slightly by season but remains relatively high: around 5 kilowatt-hours (kWh) per day in summer, autumn and spring, and slightly more than 5 kWh/day in winter.
The ideal time to generate solar power at this location would be during the autumn months when the output reaches its peak at 5.65 kWh/day per kW of installed solar. However, even during other seasons, the output remains close to this peak value making Banyumas a great place for year-round solar energy production.
For fixed panel installations at this location, tilting your panels at an angle of 8 degrees towards the North will help maximise their total yearly energy production.
As far as environmental or weather factors are concerned that could potentially affect solar production here - there aren't any major ones that stand out significantly due to its tropical climate which ensures abundant sunshine throughout most part of the year. However, it's important to remember that like any other tropical region, Banyumas also experiences wet and dry seasons which could impact overall productivity depending on how heavy or prolonged these periods are.
Heavy rainfall or extended cloudy periods during wet seasons may temporarily reduce your system’s output due to decreased sunlight exposure. To mitigate such issues while installing your panels ensure they're well-secured against stormy conditions and consider implementing cleaning routines post heavy-rainfall events to clear off any debris that might accumulate on them thereby obstructing sunlight penetration.
In conclusion though these factors do exist they don't significantly impede overall annual productivity making Banyumas an excellent choice for harnessing solar power efficiently all through-out the year.
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 Banyumas
Seasonal solar PV output for Latitude: -7.5123, Longitude: 109.3003 (Banyumas, 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 8° North in Banyumas, Indonesia
To maximize your solar PV system's energy output in Banyumas, Indonesia (Lat/Long -7.5123, 109.3003) throughout the year, you should tilt your panels at an angle of 8° 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 Banyumas, 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 Banyumas, Indonesia. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 8° North tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 8° South in Summer | 14° North in Autumn | 23° North in Winter | 2° 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 Banyumas, 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 Banyumas, 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 Banyumas, Indonesia
Banyumas, Indonesia is located in the southern part of Central Java. The topography of this area is diverse, with a mix of flat and hilly terrains. It includes coastal plains to the south, volcanic hills and mountains to the west and north, as well as fertile agricultural lands in between.
The region receives ample sunlight throughout the year due to its proximity to the equator which makes it suitable for solar PV installations. However, considering large scale solar PV projects, flat areas would be more suitable due to easier installation and maintenance.
The coastal plains towards the south could be potential sites for such projects. Also, unused agricultural lands or non-arable lands can also be considered if available. However, any project should also take into account factors like land use regulations, proximity to power grids for transmission ease and potential impact on local ecosystems or communities.
Another possibility could be installing floating solar panels on some of its many reservoirs or bodies of water (like Serayu River), a strategy that has been adopted in other parts of Indonesia already.
Remember that while an area may seem physically ideal for a solar farm based on topography alone; logistics costs like transportation accessibility and infrastructure readiness are important considerations too. Detailed feasibility studies would need to be conducted before confirming any location.
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: Monday 15th of July 2024
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?
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.
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.
