The location at Blitar, East Java, Indonesia, situated at latitude -8.0982 and longitude 112.165, offers excellent potential for solar energy generation throughout the year. This tropical location benefits from consistent sunlight, with seasons primarily characterized by wet and dry periods rather than significant temperature variations.

Solar panel performance at this site demonstrates remarkable consistency across all meteorological seasons. The highest electricity output occurs during autumn and spring, with 6.20 kWh/day and 6.21 kWh/day per kW of installed solar capacity, respectively. Summer and winter show slightly lower but still impressive outputs of 5.57 kWh/day and 5.64 kWh/day per kW.

The minimal variation between seasons indicates that Blitar is an ideal location for year-round solar energy production. The slight dips in summer and winter output are negligible, and the overall high performance across all seasons suggests that solar installations in this area would be highly efficient and productive throughout the year.

Optimal Panel Installation

For fixed panel installations in Blitar, East Java, the ideal tilt angle to maximize year-round solar production is 8 degrees North. This relatively low tilt angle is typical for locations near the equator, where the sun's path remains high in the sky throughout the year.

Environmental Considerations

While Blitar's location is generally favorable for solar energy production, there are a few environmental factors to consider:

1. Rainfall: The wet season may lead to increased cloud cover, potentially reducing solar output. Installing panels with high efficiency in diffuse light conditions can help mitigate this issue.
2. Humidity: High humidity levels can slightly decrease panel efficiency. Regular cleaning and maintenance can help counteract this effect.
3. Dust and pollution: Agricultural activities or urban pollution might lead to dust accumulation on panels. Implementing automated cleaning systems or scheduling regular manual cleaning can maintain optimal performance.

Despite these minor challenges, the consistent high output across all seasons indicates that Blitar is an excellent location for solar energy production. With proper installation techniques and maintenance practices, solar PV systems in this area can be expected to perform exceptionally well year-round.

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 Blitar

Seasonal solar PV output for Latitude: -8.0982, Longitude: 112.165 (Blitar, 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 Blitar, Indonesia

To maximize your solar PV system's energy output in Blitar, Indonesia (Lat/Long -8.0982, 112.165) 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 Blitar, 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 Blitar, 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	24° 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 Blitar, 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 Blitar, Indonesia.

Our calculation method

1. Solar Position:
   We determine the Sun's position on the Winter solstice using the location's latitude and solar declination.
2. Shadow Projection:
   We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle.
3. 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 Blitar, Indonesia

The area surrounding Blitar, Indonesia, located at latitude -8.0982 and longitude 112.165, is characterized by a diverse and picturesque topography. This region, situated in East Java, features a mix of lowlands, rolling hills, and mountainous terrain, creating a varied landscape that has been shaped by volcanic activity over millions of years. To the north of Blitar, the land gradually rises, transitioning from relatively flat agricultural areas to gently undulating hills. These hills become more pronounced as one moves further north, eventually giving way to the impressive peaks of the Southern Mountains (Pegunungan Selatan). This mountain range forms a natural boundary between the Blitar region and the areas to its north.

Volcanic Influence

The most prominent topographical feature in the vicinity of Blitar is the majestic Mount Kelud, an active stratovolcano located approximately 25 kilometers north of the city. This volcano has played a significant role in shaping the surrounding landscape, with its eruptions contributing to the fertile volcanic soil that characterizes much of the region. To the south and southeast of Blitar, the terrain gradually descends towards the Indian Ocean. This area is marked by a combination of low-lying plains and scattered hills, interspersed with rivers and streams that flow southward. The southern coast itself features a mix of sandy beaches and rocky cliffs, adding to the region's topographical diversity.

Potential for Solar PV

When considering areas near Blitar that would be most suited to large-scale solar photovoltaic (PV) installations, several factors come into play. The ideal locations would combine ample sunlight exposure, relatively flat terrain, and minimal environmental impact. The lowland areas to the south and southeast of Blitar present promising opportunities for solar PV development. These regions offer expansive, open spaces with fewer obstructions to sunlight, making them well-suited for large solar arrays. The generally flat terrain in these areas would also simplify construction and maintenance of solar facilities. Additionally, some of the gently sloping hillsides to the north and northeast of Blitar could be potential sites for solar PV installations. While these areas may require more careful planning and engineering to accommodate the terrain, they could offer excellent sun exposure and potentially less competition for land use compared to the more agriculturally productive lowlands. It's important to note that any large-scale solar PV development would need to carefully consider environmental impacts, land use regulations, and the needs of local communities. The rich agricultural heritage of the region and the presence of protected natural areas would need to be taken into account when selecting specific sites for solar energy projects.

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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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.