Spain

An irrigation community has built a 786 kW floating solar array on a small water reservoir in Murcia, Spain. The facility will provide power for a solar water pumping system, a desalination unit, and the community itself.

Spanish scientists have built a cooling system featuring heat exchangers on solar panels and U-shape heat exchangers installed in a borehole at a depth of 15 meters. The researchers claim that this reduces panel temperatures by up to 17%, while improving performance by about 11%.

Developers recently commissioned two different wine-related agrivoltaic projects in Europe.

German investment management company Aquila Capital has expanded its Antipodean asset base, inking a deal to buy a 220 MW/440 MWh portfolio of battery energy storage projects in South Australia from Spanish renewables developed Gransolar Group.

Solar-wind hybrid plants are rapidly becoming mainstream, and in booming markets like India and the US these hybrids are increasingly preferred to singular projects despite the higher installation cost. There is no shortage to the benefits of hybridisation, from a smoother power output profile to the cost saving of grid connection. But getting the balance right for new projects and retrofits remains a challenge. Blake Matich reports on this growing trend.

A Spanish scientist has developed a system that reportedly produces hydrogen on-site without expensive electrolysis. The prototype utilises a water tank that is initially filled with water, ferrosilicon, and sodium hydroxide.

Spanish energy and construction giant Acciona plans to massively expand its investment in Australian renewable projects over the next five years, following the new federal government’s pledge to upgrade national electricity transmission networks.

Developed by researchers in Spain, the battery uses renewable electricity to melt low-cost metals such as silicon or ferrosilicon alloys to produce and store latent heat, which is in turn used by a thermophovoltaic generator to produce power. According to its creators, the device may store electricity at a cost of €10 per kilowatt-hour (AU$14.6/kWh) for a 10MWh system.

Researchers in Spain have designed a pumped thermal energy storage system that uses supercritical carbon dioxide as a heat pump and a heat engine. The proposed system is claimed to achieve an efficiency of 80.26% and an LCOS of €0.116/kWh (AU$0.18/KWh)

OnSight Technology has developed a tele-operated vehicle to clean solar arrays. It is equipped with a radiometric thermal imaging camera and an optical zoom camera backed by artificial intelligence. It has a range of 12 hours and a speed of 1.6 km per hour.