BY LORETTA B MANELE
One major challenge for the Solomon Islands Water Authority (SIWA) is ‘non-revenue water’, says SIWA CEO Carmine Piantedosi.
He revealed this when he delivered his presentation on Monday, August 25, 2025 at the 9th Pacific Water and Wastewater Ministers Forum and 16th Pacific Water and Waste Water Association (PWWA) Conference and Expo 2025 at the Aquatic Centre, Honiara.
Piantedosi stated that a major challenge for them is their non-revenue water which stands at 60 % nationally.
He added that in Honiara it is also around 60% which is all the water they produce and deliver.
Piantedosi said in 2024, they actually produced 13.5 gigalitres of water however only delivered 5.8 gigalitres, losing 60%.
He explained that they only collected $167 million from actual water that was sold and with 60% of non-revenue water, it equates to about $185 million SBD of foregone revenue.
Piantedosi also stated that revolutions in climate, unpredictable weather patterns, including flooding, droughts also impacted their water availability and infrastructure at the same time requires them to take some strategic actions.
He furthered that compliance is also outdated which leads to increased leaks, and increased costs, and increased disruptions in their services.
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