Technology and R&D

Nicola Rossi, head of innovation at Enel Green Power, has told pv magazine how the company is seeking to combine microalgae cultivation with solar power generation. The integration scheme is aimed at minimizing interferences with the PV plant and maximizing the benefits in microalgae yield

The storage system is based on fluorenone derivative anolytes. Despite its small dimensions, the device is claimed to have an energy density that is more than twice that of the vanadium batteries in use today.

Spanish energy company Iberdrola and American power generation products producer Cummins have signed an agreement to promote a green hydrogen value chain in Spain by 2023. Denmark-based green hydrogen infrastructure company Everfuel has launched its H2 station roll-out plan for Denmark, targeting up to 19 fueling sites by the end of 2023. South Korean automotive manufacturer Hyundai Motor has said it would begin production of the world’s first mass-produced, heavy-duty truck powered by hydrogen, in August this year.

Researchers led by the Indian Institute of Technology Delhi have projected the waste expected from end-of-life solar panels and related components. They assumed 347.5 GW of total installed solar generation capacity would be reached this decade. The academics said the waste would include critical metals worth around $645 trillion, 70% of which could be recovered.

Junior power minister Nasrul Hamid, speaking at a signing ceremony for a planned 100 MW project, warned technology would have to develop to require less surface area for solar modules, although he did say Dhaka would fund research into rooftop solar.

The cell was fabricated with a flexible substrate made of indium tin oxide (ITO) and polyethylene terephthalate (PET). The device was tested through a damp heat test and showed it can retain around 90% of its initial efficiency after 800 hours.

The pilot project is combining hydrogen fuel cell generators with a combined capacity of 500 kW with a 570 kW solar array and 1.1 MWh of lithium-ion batteries. It is planned to come online in the spring of 2022.

India’s Aegeus Technologies has developed an autonomous, water-free cleaning bot for rooftop solar installations. The bot weighs 5 kg (with battery) and can be operated remotely through a web-based app. It uses an air wash technology to clean the panels, ensuring no need for water or any harmful chemicals.

Even as solar researchers strive to squeeze every drop of efficiency from the industry-ruling silicon solar-cell technology, scientists are constantly questing for the next, cheaper, more efficient way of harvesting the sun’s energy to power human endeavours. The appetite for accelerating 2D perovskite solar cell development has just been piqued!

The solar fence has an output of 400 W per fence section. It is built with heterojunction or n-type PERT bifacial cells developed by the German start-up and relies on its vertical mounting technology for bifacial photovoltaic panels.