Solar PV Analysis of Sidoarjo, Indonesia
Sidoarjo, East Java, Indonesia is a very good location for producing solar energy all year round. This is because it's located in the Tropics where there is consistent sunlight throughout most of the year. The seasons are typically characterized by wet and dry periods rather than drastic changes in temperature or daylight hours.
In terms of energy production from solar panels, you can expect around 4.99 kilowatt-hours (kWh) per day for each kilowatt (kW) installed during summer, 5.58 kWh/day in autumn, 5.62 kWh/day in winter, and 5.88 kWh/day in spring.
This means that spring would be the best time to generate solar power at this location due to slightly higher daily output compared to other seasons. However, since the difference between each season isn't significant, you can still count on reliable solar production throughout the year.
If you're planning on installing fixed panel solar systems here, it’s recommended that you tilt your panels at an angle of 8 degrees towards North for maximum efficiency and total annual production.
As with any location though, there could be local factors that might affect how much energy you can produce from your solar panels such as weather conditions or environmental issues.
For instance, Sidoarjo experiences rainy seasons which may reduce sunlight exposure temporarily affecting electricity generation from your panels but not significantly enough to deter installation altogether due its tropical climate having ample sunshine across most days of the year overall.
Also keep in mind about potential dust accumulation on your panels especially during dry seasons which could lower their efficiency over time if not regularly cleaned off; so preventive measures like regular cleaning maintenance should be part of your plan when installing these systems here to ensure optimal performance and greater overall energy yield.
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 Sidoarjo
Seasonal solar PV output for Latitude: -7.4469, Longitude: 112.7181 (Sidoarjo, 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 Sidoarjo, Indonesia
To maximize your solar PV system's energy output in Sidoarjo, Indonesia (Lat/Long -7.4469, 112.7181) 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 Sidoarjo, 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 Sidoarjo, 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 |
|---|---|---|---|
| 9° 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 Sidoarjo, 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 Sidoarjo, 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 Sidoarjo, Indonesia
Sidoarjo is located in the province of East Java, Indonesia. The region has a relatively flat topography, as it is situated on a coastal plain near the Java Sea. It is also surrounded by several rivers which makes the area fertile and suitable for agriculture.
The city lies just south of Surabaya and north of Mount Penanggungan, with several smaller hills to its east. However, these geographical features do not significantly affect the overall flatness of Sidoarjo's terrain.
Regarding solar PV installations, areas with high sun exposure and minimal shading are ideal. Given that Sidoarjo experiences tropical weather with abundant sunlight throughout the year, large-scale solar PV projects could potentially be successful here.
Flat open spaces such as unused agricultural lands or industrial zones could be suitable for such projects due to their exposure to sunlight and ease of installation. The northern part towards Porong or southern regions closer to Sepanjang might be particularly suited given their expanses of flat land.
However, other factors also need consideration when planning large-scale solar PV installations - including proximity to power grids for easy transmission, local regulations regarding land use and renewable energy projects, potential environmental impacts etc., hence thorough feasibility studies would be needed beforehand.
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: Wednesday 17th of April 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.
