Desalination

Germany’s Boreal Light says it has installed a desalination plant in Mykolaiv, Ukraine. It claims that the system – which uses 560 W solar modules to produce 125 cubic meters of clean water per hour – is Europe’s largest PV-powered desalination project.

Massachusetts Institute of Technology (MIT) researchers have developed a solar desalinator with high water output, via a multi-stage system of evaporators and condensers. It offers cost-effective solar desalination, making solar-produced drinking water cheaper than tap water for the first time.

Scientists in India have combined a solar-assisted heat pump with a humidification-dehumidification and vapor compression refrigeration (HDH-VCR) cycle to generate heat and cooling. The system is reportedly able to generate up to 5.5 l per hour (LPH) of fresh water while achieving an ‘enhanced’ coefficient of performance.

A California hydrogen developer and a Netherlands-based desalination company have formed a new partnership.

Bangladesh has introduced tax exemptions to reduce water production costs and promote the use of solar power in 19 coastal districts. This initiative comes in response to grid electricity shortages caused by a decline in coal and fuel imports. The goal is to enhance reliance on solar-powered water desalination in these areas.

UK researchers have proposed the use of photovoltaic-thermal energy for desalination purposes, via an approach based on synergistic electro-thermal coupling mechanisms. They have found that some system configurations could offer a lower levelized cost of desalinated water, in addition to higher efficiencies.

Israel and Jordan have agreed to pair 600 MW of solar with an undisclosed amount of storage. The deal, which was brokered by the United Arab Emirates at COP27, will see Jordan provide electricity to Israel in exchange for desalinated water.

Alfanar has revealed plans to set up a solar project including ground-mounted and floating PV to provide power to the Al Jubail 2 water desalination plant on the east coast of Saudi Arabia. It will require an investment of SAR 1.2 billion ($319 million).

ACWA Power and Emirates Water and Electricity Co. (EWEC) have commissioned the first phase of the Al Taweelah Independent Water Plant in the United Arab Emirates. The facility, which can produce more than 6.4 million cubic meters of water per day, sources some of its power from a nearby solar park.

The futuristic Neom City will be powered exclusively by renewable energy, but a co-optimization approach with the water sector will be crucial for desalination and sustainable water supplies. Saudi scientists have assessed different system configurations and determined that solar-plus-storage would deliver the lowest levelized cost of energy.