In Asmat, where vast areas of swamp and brackish water make access to fresh water a daily challenge, an unlikely resource is becoming part of the solution. Water that was once too salty, cloudy, or unsuitable for drinking is now being processed into clearer fresh water through a solar-powered desalination system developed by the State Electricity Company Limited, or PT PLN, in the region of Papua and Papua Barat (West Papua).
The innovation has now received national recognition.
PLN UIW Papua and Papua Barat won a gold award in the environmental category at the Indonesian SDGs Awards, or ISDA, 2026, for its program to provide quality clean water in areas with limited access to fresh water in Asmat Regency, Papua Selatan (South Papua) Province. The award was presented by the Corporate Forum for CSR Development, or CFCD, on September 29, 2026.
The recognition places a relatively small community-based project in Asmat within a much larger conversation about sustainable development, renewable energy, and basic services in eastern Indonesia.
For the people using the facility, however, the significance is much more immediate.
Accessing water for drinking and daily activities without relying heavily on expensive supplies or waiting for rain is crucial.
Asmat’s Fresh Water Challenge
Geography Makes Water Access Difficult
Asmat’s geography is central to understanding why the program was developed.
The district is dominated by wetlands, swamps, and areas where available water sources are often brackish or cloudy. In many locations, finding naturally occurring fresh water is not straightforward.
For local residents, rainwater has traditionally been an important source of water for daily needs.
This dependence creates vulnerability due to the seasonal nature of rainfall and the limited storage capacity.
PLN General Manager for Papua and Papua Barat Roberth Rumsaur said access to clean water was a critical basic need, particularly in places such as Agats, where geographical conditions make conventional water sources difficult to obtain.
“We realize that access to clean water is a very crucial basic need, especially in areas with challenging geographical conditions such as Agats,” Roberth said.
The statement captures the starting point of the project.
The challenge was not simply to bring bottled water into the area. Such an approach might provide temporary relief but would not necessarily create a sustainable local source.
PLN instead looked at the water that was already available around the community.
The question became whether technology could make that water useful.
From Brackish Water to Fresh Water
A Technology-Based Solution
The answer came through desalination.
Under the PLN program, water from brackish and swamp sources is processed through a treatment system designed to remove unwanted salts and impurities.
The program uses two principal technologies: reverse osmosis and distillation.
Reverse osmosis uses pressure to force water through a specialized membrane, separating water from dissolved salts and other contaminants.
The system also incorporates distillation through steam heating.
The combination allows water that previously had an unpleasant salty taste or was cloudy to be processed into clearer fresh water that is described in the program reports as suitable for consumption.
This is particularly relevant in a place such as Asmat.
The technology does not require officials to search for an entirely new underground or surface freshwater source. Instead, it provides a way to make better use of water already present in the local environment.
That makes the program potentially adaptable to other communities facing similar geographical conditions.
Solar Power Provides the Energy
The second part of the innovation is its energy source.
The desalination system is supported by a micro solar power plant, or Mikro PLTS.
This means the system is designed to use renewable solar energy to operate the water treatment process rather than depending entirely on conventional electricity supplies.
PLN also installed supporting infrastructure, including a water storage tank and pumping system.
The combination is important.
Desalination requires energy. Without a reliable power supply, even an effective water treatment machine cannot operate consistently.
By pairing desalination with solar generation, PLN has attempted to address both sides of the problem at the same time: the availability of suitable water and the energy required to process it.
Roberth described the use of renewable energy for water treatment as an example of how green energy can support basic services in remote and geographically challenging areas.
The Project Begins at Saiful Al Bukhori Mosque
A Community Facility Becomes a Water Hub
The program was implemented at Saiful Al Bukhori Mosque in Agats District, where the desalination facility has become a practical source of water for the surrounding community.
The choice of location gives the project an important social dimension.
A mosque is not only a place of worship. In many communities, it is also a gathering point where residents meet, conduct social activities, and maintain community ties.
Providing a water facility there means the benefits can extend beyond worshippers.
The facility is designed to produce up to 2,200 liters of water per day, according to PLN and ANTARA reporting. It can process brackish or cloudy water into water that is clearer, without the salty taste and odor previously associated with the available source.
For a community facing difficulties obtaining fresh water, that capacity can make a meaningful difference.
The program also reduces some of the logistical burden associated with obtaining drinking water from elsewhere.
What Residents Say
Lower Costs and Easier Access
People who use the project best illustrate its impact.
Burhan Ar Rahman, chairman of the management board of Masjid Saiful Al Bukhori, expressed appreciation for PLN’s assistance.
He said water from the existing well had previously not been suitable for drinking. With the desalination system, the same source can now be processed into clean water.
“We are very grateful and thankful to PLN for its concern for Masjid Saiful Al-Bukhori and the surrounding community,” Burhan said.
He also said the program helped reduce the cost of buying drinking water.
That point is important because the water problem has an economic dimension.
When communities cannot rely on affordable local water sources, families may have to spend more money obtaining drinking water. In remote areas, transportation costs can further increase the price.
A locally operated treatment system has the potential to reduce part of that burden.
The facility has also made activities at the mosque more comfortable, including worship and other religious programs.
From Community Assistance to National Recognition
Why ISDA 2026 Matters
The Gold award was not simply recognition for installing a machine.
The program was submitted as a Tanggung Jawab Sosial dan Lingkungan, or TJSL, initiative under the title “Provision of Quality Clean Water Sources in Freshwater Scarce Areas of Asmat Regency Using Desalination Technology and Micro Solar Power Plants.”
The program was assessed under the environmental category of ISDA 2026.
Its design brings together several elements of the Sustainable Development Goals (SDGs).
Access to clean water relates directly to SDG 6, which focuses on clean water and sanitation.
The use of solar power supports the broader transition toward cleaner energy associated with SDG 7.
The program also has social implications because improved water access can affect health, household expenditure, and quality of life.
For PLN, therefore, the project represents more than a conventional corporate social responsibility donation.
It is an example of combining technology, renewable energy, and community needs in a single intervention.
A Different Role for PLN in Papua
Beyond Electricity
The program also illustrates the changing role of PLN in remote parts of Papua.
The company’s primary responsibility remains electricity supply.
But Roberth said PLN’s TJSL activities are intended to provide broader benefits for communities, particularly in areas where geography makes basic services more difficult to deliver.
This is relevant in Papua because infrastructure gaps often overlap.
A community may face limited electricity, difficult transportation, inadequate water infrastructure, and high logistics costs at the same time.
Solving one problem can therefore create opportunities to address another.
In Asmat, the availability of renewable electricity technology makes it possible to operate a water treatment system in a location where conventional infrastructure can be more difficult or expensive to establish.
The project demonstrates the value of looking at these challenges together rather than separately.
Why Solar Desalination Could Matter for Remote Papua
The Asmat project also has implications beyond Agats.
Numerous communities in Papua face complicated access to freshwater due to geography.
Some are surrounded by wetlands, coastal environments, or brackish water.
Others are located far from established water infrastructure.
In such areas, decentralized treatment systems can potentially offer an alternative to large centralized networks.
Solar power adds another advantage.
A solar-powered system can reduce dependence on fuel-based generators, although its effectiveness still depends on proper maintenance, adequate sunlight, equipment reliability, and the availability of trained operators.
The successful replication of the technology hinges on those practical factors.
The Asmat project therefore provides a real-world demonstration rather than a universal solution.
Its long-term value will depend on how well the facility continues to operate and whether similar systems can be adapted to other communities with comparable conditions.
Sustainability Will Be the Next Test
Winning a gold award provides recognition, but the more important test will take place after the ceremony.
The award presentation should not mark the end of water infrastructure operations.
That means maintenance, spare parts, technical assistance, and community involvement are essential.
The storage tank and pumping system need to remain functional. Solar panels require maintenance. Desalination membranes and other components have finite operating lives.
A successful program must therefore develop local capacity alongside physical infrastructure.
Community ownership can become particularly important.
If residents understand how the system works, know how to report problems, and have clear arrangements for maintenance, the facility is more likely to provide benefits over the long term.
PLN has said it intends to continue developing social and environmental initiatives that provide direct benefits and promote greater community independence in remote areas of Papua.
That commitment will be important if the Asmat model is eventually expanded.
A Small Facility with a Wider Development Message
The significance of the project goes beyond the amount of water produced each day.
The program demonstrates how to address a basic infrastructure problem by combining local conditions with appropriate technology.
Asmat has plenty of water.
The problem is that much of it is not naturally suitable for drinking.
The solution therefore is not necessarily to find more water, but to make better use of the water that exists.
That distinction is important.
It reflects an approach to development that starts with the physical realities of the region rather than imposing a standard infrastructure model designed for very different environments.
The use of solar energy strengthens that approach.
Instead of treating renewable energy simply as an electricity generation technology, PLN has linked it directly to another basic community need.
Water and energy are therefore being addressed together.
From Asmat to a Broader Papua Development Strategy
The program also fits into a broader pattern of infrastructure expansion across Papua.
PLN reported that it had connected 128 villages across Papua during the first half of 2026, reflecting continued efforts to expand electricity access in communities previously outside established networks.
The Asmat desalination project adds another layer to that effort.
Electricity becomes more valuable when it supports services that directly affect people’s lives.
In Agats, renewable electricity is helping power a system that turns locally available brackish and swamp water into a usable freshwater supply.
For residents, the connection between energy and water is practical rather than abstract.
A technological investment translates into tangible benefits in the kitchen, at the mosque, and throughout everyday community life.
Conclusion
The Asmat water desalination program represents a practical response to one of the less visible challenges facing communities in Papua: having abundant water around them while still struggling to obtain water suitable for daily consumption.
Through its TJSL program, PLN UIW Papua and Papua Barat introduced a desalination system at Masjid Saiful Al Bukhori in Agats capable of producing up to 2,200 liters of water per day. The system processes brackish and cloudy water through reverse osmosis and distillation, while a micro solar power plant supplies the energy needed for the operation. Storage and pumping facilities complete the system.
The program has now received national recognition, winning the Gold award in the Environmental category at ISDA Awards 2026, organized by CFCD and presented on September 29.
For PLN General Manager Roberth Rumsaur, the award represents recognition of the company’s commitment to the Sustainable Development Goals and to providing practical solutions for communities in geographically challenging areas.
For Burhan Ar Rahman and residents around the mosque, the achievement has a simpler meaning.
Water that once could not readily be used for drinking can now be treated locally.
Families can potentially spend less on purchased drinking water. Worshippers have a more reliable water source. And a community that has long depended heavily on rainfall has another option.
The next challenge is sustainability.
The true measure of the program will be whether the facility continues working efficiently, whether local communities can participate in maintaining it, and whether the approach can be adapted to other parts of Papua where freshwater remains difficult to access.
The Gold ISDA award recognizes what has already been achieved.
The greater opportunity lies in what comes next.
If the Asmat model proves durable, it could offer a useful example of how renewable energy and water technology can be combined to address basic needs in remote parts of eastern Indonesia.
In a region where geography can make conventional infrastructure difficult, innovation does not always have to be large to be transformative.
Sometimes, it begins with turning the water that is already there into water people can use.
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