Shanghai Electric ("Shanghai Electric" or "the Company") announced that the first molten salt tank hydro test for the Parabolic Trough Plant-II (PT2) of the fourth phase of Mohammed bin Rashid Al Maktoum Solar Park was carried out on May 9, the positive results of which laid a crucial foundation for the next phase of the molten salt system commission. The test was followed by finalized molten salt pipeline installation inside the Concentrated Solar Power (CSP) tower, marking another key milestone in construction progress. The fourth phase of Mohammed bin Rashid Al Maktoum Solar Park is the large single-site Concentrated Solar Power (CSP) project in the world, which uses hybrid solar energy technologies to generate 950MW of clean energy, including a 100 MW CSP tower plant, three 200 MW parabolic trough CSP plants and 250 MW of photovoltaic (PV) capacity. The solar tower, standing 260m-high at the center of the CSP tower plant site, will also be the world's tallest structure of its kind. Upon completion, the combined thermal energy storage of the solar tower and parabolic trough plants will allow for 24/7 energy availability, with each parabolic trough CSP plant possessing an energy storage capacity of 13.5 hours and the tower boasting up to 15 hours. Nitrate, the heat storage medium for the Parabolic Trough Plant-II, is stored in eight tanks, with each one measuring 45 meters in diameter and 25,000 cubic meters in capacity. The harsh desert environment presented a massive challenge to the test, and labor shortages during Ramadan added another layer of uncertainty to overall progress. The test was eventually completed on time with the help of water trucks which transported and unloaded the water to provisional water tanks, through which the water was pumped into the molten salt tanks. The molten salt tank system is the answer to the challenges of thermal energy storage. Thermal energy storage realized by molten salt systems enables power generation on cloudy days, or long night after sunset, with high operating efficiency and low capital costs per kilowatt-hour. During the daytime, the molten salt is circulated to a heat exchanger from a cold tank to absorb heat from the high-temperature oil. The heated molten salt can then be stored in an insulated hot tank which can later send the liquid to power steam turbines at night or during unfavourable weather conditions.