#post-installation-sustainability

The evidence is a 9 cm² panel run for ~9 hours outdoors and a lab unit run for 7 days. Real deployment needs square-metre panels surviving years of seawater: aluminium corrosion, biofouling, laser-texture wear, mechanical robustness, and field salt-harvesting are all untested.

Solar evaporation yields ~10 L/m²/day outdoors—near the physical ceiling, not an engineering gap. Full domestic use (~50–100 L/person/day) requires 5–10 m² per person; a 10,000-person town needs 5–10 hectares. This bounds the technology to household/hamlet scale, not municipal su

The dominant failure mode of decentralized water infrastructure is not installation — it's what happens in year two and beyond. ~58% of handpumps in sub-Saharan Africa are non-functional at any time, representing $1.2–1.5B in stranded investment over two decades.

A black-lined basin of saltwater under a sloped glass cover: sun evaporates the water, it condenses on the glass and runs off as distillate. No moving parts, no consumables, repairable with local materials — but output is ~4–6 L/m²/day, so area demand is the binding constraint.

A shipping-container RO plant powered by solar PV and battery storage, producing ~75,000 L/day for ~25,000–35,000 people, operated by trained local staff and partly funded through water sales. Capital cost ~US$0.5–0.57M; ~20-year service life.

First large-scale solar desalination plant, built in the Atacama Desert to supply freshwater to a saltpeter/silver mining community and its draft animals using highly saline mine effluent (~140,000 ppm) as feed. The ins…

A containerized solar-PV reverse-osmosis plant installed in 2018 in Kiunga, a remote coastal fishing community south of the Somali border, where residents previously relied on brackish, contaminated water. Solar panels…