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Flag of Papua New GuineaSolar PV Analysis of Finschhafen, Papua New Guinea

Graph of hourly avg kWh electricity output per kW of Solar PV installed in Finschhafen, Papua New Guinea (by season)

Solar Energy Potential in Finschhafen, Morobe Province, Papua New Guinea

Finschhafen, Morobe Province, located in Papua New Guinea, shows promising potential for solar energy generation throughout the year. This tropical location experiences consistent sunlight with seasonal variations primarily defined by wet and dry periods rather than significant temperature fluctuations. The solar electricity production varies moderately across seasons. Summer months yield the highest output at 5.45kWh per day for each kilowatt of installed solar capacity. Spring follows closely behind with 5.41kWh/day. Autumn sees a slight decrease to 4.88kWh/day, while winter represents the lowest production period with 4.15kWh/day per kilowatt installed. For fixed solar panel installations in Finschhafen, Morobe Province, the optimal tilt angle is 5 degrees facing North. This specific angle has been calculated to maximize year-round solar energy production, taking into account the location's position relative to the sun's path throughout the year.

Seasonal Considerations

The relatively small variation between seasons indicates that Finschhafen is suitable for year-round solar energy production. The difference between the highest producing season (summer) and lowest (winter) is only 1.3kWh/day per kilowatt installed, suggesting consistent performance throughout the year. Summer and spring represent peak production periods, making these seasons ideal for generating surplus energy that could be stored for use during lower-production periods. While winter shows reduced output, it still provides substantial energy generation compared to many non-tropical locations globally.

Environmental Challenges

Several environmental factors could potentially impact solar energy production in Finschhafen:
  • High humidity and frequent rainfall, particularly during the wet season, may reduce panel efficiency and increase maintenance requirements
  • Tropical storms and cyclones pose risks to panel installations and may cause damage if not properly secured
  • Salt spray from the nearby ocean can accelerate corrosion of mounting hardware and electrical components
  • Vegetation growth is rapid in tropical environments and can quickly shade panels if not regularly maintained

Preventative Measures

To maximize solar production despite these challenges, several preventative measures should be considered: Installing corrosion-resistant mounting hardware and sealed electrical components is essential given the coastal location. Panels should be mounted at sufficient height to minimize salt spray exposure and with robust fixtures capable of withstanding tropical storm conditions. Regular cleaning schedules are crucial to remove salt deposits and other debris that can accumulate on panel surfaces. Self-cleaning panel technologies or hydrophobic coatings may be beneficial in this high-humidity environment. Vegetation management around the installation area should be planned for, with sufficient clearance maintained to prevent shading. Elevated mounting structures can provide additional protection against ground-level flooding during heavy rainfall events. Despite these challenges, with proper installation and maintenance, Finschhafen's consistent solar radiation levels make it a viable location for solar PV systems that can provide reliable energy generation throughout 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 9 locations across Papua New Guinea. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.

Link: Solar PV potential in Papua New Guinea by location

Solar output per kW of installed solar PV by season in Finschhafen

Seasonal solar PV output for Latitude: -6.598434, Longitude: 147.853302 (Finschhafen, Papua New Guinea), 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:

Summer
Average 5.45kWh/day in Summer.
Autumn
Average 4.88kWh/day in Autumn.
Winter
Average 4.15kWh/day in Winter.
Spring
Average 5.41kWh/day in Spring.

 

Ideally tilt fixed solar panels 5° North in Finschhafen, Papua New Guinea

To maximize your solar PV system's energy output in Finschhafen, Papua New Guinea (Lat/Long -6.598434, 147.853302) throughout the year, you should tilt your panels at an angle of 5° 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.

The sun
At Latitude: -6.598434, Longitude: 147.853302, the ideal angle to tilt panels is 5° North

Seasonally adjusted solar panel tilt angles for Finschhafen, Papua New Guinea

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 Finschhafen, Papua New Guinea. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 5° 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 13° North in Autumn 23° North in Winter 0° in Spring

Assuming you can modify the tilt angle of your solar PV panels throughout the year, you can optimize your solar generation in Finschhafen, Papua New Guinea as follows: In Summer, set the angle of your panels to 9° facing South. In Autumn, tilt panels to 13° facing North for maximum generation. During Winter, adjust your solar panels to a 23° angle towards the North for optimal energy production. Lastly, in Spring, position your panels at a 0° angle facing to capture the most solar energy in Finschhafen, Papua New Guinea.

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 Finschhafen, Papua New Guinea

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 Finschhafen, Papua New Guinea.

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.






Please enter information above to calculate panel spacing.

Topography for solar PV around Finschhafen, Papua New Guinea

The topography around Finschhafen, Papua New Guinea presents a dramatic landscape characterized by steep coastal mountains, narrow valleys, and a rugged, irregular coastline. Situated on the Huon Peninsula in Morobe Province, Finschhafen occupies the northeastern tip of this mountainous peninsula that juts out into the Solomon Sea. The terrain rises quickly from sea level, with the coastal plains being quite narrow before transitioning into foothills and then the steeper slopes of the Rawlinson Range. These mountains, part of the larger Saruwaged Range, reach elevations of over 1,000 meters within just a few kilometers of the coast. The highest peaks in the broader vicinity exceed 4,000 meters, creating a formidable mountainous backdrop to the coastal settlement.

Coastal Features

The immediate coastline around Finschhafen features numerous small bays, coves, and headlands. The settlement itself sits on a relatively protected harbor area. Offshore, coral reefs are common, and the continental shelf drops off steeply not far from shore, resulting in deep water close to the coastline. The coastal strip contains some flatter areas, particularly around river mouths where alluvial deposits have created small deltas and plains. These areas are typically narrow, however, with the mountains approaching quite close to the shore in most locations.

River Systems

Several river systems dissect the landscape, flowing from the highlands down to the coast. These rivers have carved steep valleys through the mountains, creating V-shaped profiles typical of youthful, erosive waterways in mountainous terrain. During rainy periods, these rivers can swell significantly, carrying substantial amounts of sediment downstream. The drainage pattern is predominantly dendritic (tree-like), with numerous tributary streams feeding into the main river channels. Waterfalls are common where harder rock formations create resistant ledges in the river courses.

Vegetation and Land Cover

The natural vegetation around Finschhafen consists primarily of tropical rainforest, with density and species composition varying with elevation. The lower slopes and coastal areas feature lowland rainforest, while mid-elevation areas transition to montane forest types. At higher elevations in the nearby ranges, the vegetation transitions to subalpine and eventually alpine environments. Human settlement has created patches of cleared land, particularly in the flatter coastal areas and some of the gentler slopes. These areas are typically used for subsistence agriculture, small-scale commercial crops, and community settlements.

Potential Areas for Solar PV Development

When considering locations for large-scale solar photovoltaic installations, several factors must be evaluated, including terrain flatness, accessibility, and proximity to existing infrastructure. In the Finschhafen vicinity, the most suitable areas would include: The coastal plains, particularly where rivers have deposited alluvial materials creating flatter terrain. These areas offer the advantage of being close to existing settlements and infrastructure, though they are limited in size. Some of the broader valley floors inland from the coast may provide suitable terrain, though accessibility could be challenging due to the steep surrounding slopes. Gentler ridge tops and plateau areas within the mountains could potentially accommodate solar installations, though construction costs would be higher due to the need for access roads and the challenges of building on sloped terrain. Areas where forest has already been cleared for agriculture might present opportunities for dual-use development, minimizing additional environmental impact. The most practical approach would likely involve multiple smaller installations rather than a single massive facility, given the fragmented nature of available flat land. Careful engineering would be required to address drainage issues during the rainy season, as well as slope stability concerns in areas with steeper gradients. Existing road infrastructure is limited, which would present logistical challenges for construction and maintenance. Any major solar development would likely require significant infrastructure improvements to support both construction and ongoing operations.

Citation Guide

Article Details for Citation

Article: Solar PV Analysis of Finschhafen, Papua New Guinea
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Thursday 1st of May 2025
Last Updated: Sunday 21st of September 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.

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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.

Calculate Your Optimal Solar Panel Tilt Angle