Solar PV Analysis of Bangli, Indonesia
Bangli, Bali, Indonesia is a good location for generating solar energy throughout the year. This is because it's located in the tropics where sunlight is consistent most of the time and there are more wet and dry seasons rather than traditional summer, autumn, winter and spring seasons.
When you install 1 kilowatt (kW) of solar panels here, you can expect to generate around 5.46 kilowatt-hours (kWh) of electricity per day in summer, 6.11 kWh/day in autumn, 5.86 kWh/day in winter and 6.25 kWh/day in spring.
The best times to generate solar power at this location seem to be during autumn and spring when daily output from each kW of installed solar is slightly higher than other times.
If you're installing fixed panel solar at this location, tilting your panels at an angle facing 9 degrees North will give you the maximum total amount of electricity over a whole year.
There could be factors that might reduce how much power your panels can produce though - things like weather conditions or local environmental issues for instance.
In Bangli specifically though there aren't any significant factors that would impede production greatly but still worth noting that during rainy season or on cloudy days, less sunlight reaches the panels which reduces their output temporarily but overall yearly production remains high due to consistent tropical sunlight.
Also if there's dust or dirt on your panels they won't work as well so keeping them clean helps ensure they're working efficiently all year round - especially important considering potential dust from nearby agricultural activities common in rural Indonesia regions like Bangli.
So overall Bangli seems an ideal place for producing lots of solar energy throughout the year with minor considerations related to cleaning maintenance ensuring optimal 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 Bangli
Seasonal solar PV output for Latitude: -8.457, Longitude: 115.3598 (Bangli, 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 9° North in Bangli, Indonesia
To maximize your solar PV system's energy output in Bangli, Indonesia (Lat/Long -8.457, 115.3598) throughout the year, you should tilt your panels at an angle of 9° 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 Bangli, 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 Bangli, Indonesia. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 9° 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 | 15° North in Autumn | 24° North in Winter | 3° 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 Bangli, 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 Bangli, 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 Bangli, Indonesia
Bangli, located in the Bali province of Indonesia, is characterized by a mixed topography. It has mountainous terrain due to its proximity to Mount Batur, one of Bali's active volcanoes. However, it also includes areas of flat land and gentle slopes which are largely used for agriculture.
For large-scale solar PV installations, flat or gently sloping lands would be most suited. These types of terrains offer easier installation and maintenance compared to steep or uneven landscapes. The regions around Bangli that are predominantly used for agriculture could potentially be suitable for solar farming if they receive sufficient sunlight throughout the year.
However, it's important to note that any decision on where to locate a large-scale solar project should take into account several other factors beyond just topography. These include local climate conditions (amount and intensity of sunlight), availability and cost of land, proximity to power grids or demand centers (for electricity transmission), environmental impacts, as well as social factors such as potential disruption to local communities or cultural sites.
Moreover, given Bangli's tropical climate with high levels of rainfall throughout the year; weather patterns must also be considered when assessing suitability for solar energy generation.
In summary: while certain areas around Bangli might have suitable topographic characteristics for large-scale PV systems; a comprehensive feasibility study incorporating various technical, environmental and socio-economic aspects would need to be conducted before making any definitive conclusions about their viability.
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 10th of June 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.
