Solar PV Analysis of Ngawi, Indonesia
The location at Ngawi, East Java, Indonesia is excellent for generating solar energy throughout the year. This is because it's located in the Tropics where sunlight is pretty consistent all year round. The amount of solar energy that can be produced varies slightly by season, but not by much. In Summer, you can expect to generate about 5.17 kilowatt-hours per day for every kilowatt of solar panels installed. In Autumn, this increases to 5.74 kWh/day, then slightly decreases to 5.66 kWh/day in Winter and increases again to 5.96 kWh/day in Spring.
So basically, there isn't a bad time of year to generate solar energy at this location - you'll get a good amount of energy no matter the season! However, if you want to maximize your energy production, Spring would be the best time as it has the highest daily output.
For a fixed panel installation here though, it's best to tilt your panels at an angle of 8 degrees facing North - this will help you get the most total production from your solar panels throughout the entire year.
As for potential factors that could impede solar production at this location - there aren't any significant ones mentioned specifically for Ngawi but generally speaking in tropical areas like this one sometimes heavy rainfall or cloud cover during wet seasons could potentially decrease solar output temporarily while they're happening.
To prevent these weather conditions from affecting your system too much though you might want install some sort of protective covering or shield over your panels that can keep off heavy rain or debris but still allows sunlight through when it's sunny out again after a storm passes over – just make sure whatever solution you choose doesn’t block sunlight getting through when weather’s clear as that would defeat purpose!
In conclusion: Ngawi is an almost ideal place for generating consistent amounts of Solar power all-year-round due its tropical climate and latitude with only minor seasonal variations and potential temporary weather-related decreases in output.
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 Ngawi
Seasonal solar PV output for Latitude: -7.4049, Longitude: 111.4498 (Ngawi, 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 Ngawi, Indonesia
To maximize your solar PV system's energy output in Ngawi, Indonesia (Lat/Long -7.4049, 111.4498) 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 Ngawi, 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 Ngawi, 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 Ngawi, 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 Ngawi, 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 Ngawi, Indonesia
Ngawi, Indonesia is located in the eastern part of Central Java Province and is characterized by a mix of flatlands and hilly areas. The region is known for its tropical climate with a significant amount of rainfall throughout the year. However, it also enjoys ample sunshine making it suitable for solar PV installations.
The flatlands around Ngawi would be most suited for large-scale solar PV installations due to ease of installation and maintenance. Areas such as Widodaren, Paron, Mantingan, or even closer to the Bengawan Solo River could be potential sites given their relatively flat topography.
However, other factors such as land availability and use, proximity to transmission lines or substations (for grid-connected systems), local regulations regarding land use and renewable energy projects should also be considered when identifying suitable locations for large-scale solar PV installations. It's also essential to conduct a detailed site-specific assessment including solar irradiance levels before deciding on a 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: Tuesday 6th 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.
