Where are we headed with off-grid PV?
An increasing number of people choose to design their PV system so it can be used even when the grid power has gone – as a back-up, so to speak. But there are markets where off-grid PV is not the back-up solution, but it is the primary source of power. There are numerous examples ranging from holiday homes and house boats in the south of Europe, to remote farmhouses, and rural regions in Africa and Asia where people don’t always have grid access. To this end, our webinar partner Solis has introduced its latest off-grid inverter which kicks into life at a mere 500 V input voltage.
Imagine a nationwide energy system relying solely on distributed PV and V2G-equipped electric vehicles
Norwegian researchers have sought to assess the theoretical technical feasibility of a country-level energy system based exclusively on distributed solar, electric vehicles, and vehicle-to-grid technologies. They applied the model to sunny Spain and found that 3.45 billion m2 of PV systems would be necessary to build a 100% self-reliant energy system.
Gallium arsenide nanowire solar cell with 7.7% efficiency
Norwegian scientists have developed a gallium arsenide (GaAs) nanowire solar cell that can be used as a top cell in a dual tandem cell with a bottom silicon cell. The device is claimed to be the most efficient single-junction GaAs nanowire solar cell grown on a silicon substrate so far.
New laser-cutting system for half-cut, shingled PV cells
German manufacturer 3-D Micromac said it has developed a new machine that can produce more than 6,000 wafers per hour. It is suitable for solar cells with temperature-sensitive coatings, or depositions such as heterojunction devices.
The world’s largest seawater heat pump based on CO2 as refrigerant
Swiss-headquartered technology corporation ABB is supplying integrated electrical infrastructure for the construction of a 50 MW seawater heat pump in Denmark. The heat pump technology will be provided by German specialist MAN Energy Solutions.
Established thin film processing for 18%-efficient perovskite mini-modules
Scientists in Germany applied vapor-based deposition techniques and laser scribed interconnection – both well established processes in existing thin-film solar manufacturing – to fabricate perovskite mini modules. The group achieved a maximum efficiency of 18% for a device measuring 4cm². Relying on these processes, they say, could simplify processing and reduce losses associated with scaling up to commercial-sized devices.
UK, Indian authorities launch plan for transnational solar super-grid
The International Solar Alliance and the U.K. authorities are leading a global super-grid program that seeks to connect 140 countries to round-the-clock renewable power.
Solar tile with anti-glare coating from Switzerland
Swiss manufacturer Megasol said the new product is compatible with the most common tile formats and also available in different colors. Megasol has also developed a coating that eliminates the glare effect of solar modules.
Greece launches Gr-Eco Islands Initiative with €100 mlllion pot
Greece’s government gathered today on the Aegean island of Halki to inaugurate a local community energy project and also launch its Gr-Eco Islands Initiative, which aims to green the country’s archipelago.
Insolight unveils 20.1%-efficient translucent photovoltaic panel for agrivoltaics
Insolight has developed a translucent monocrystalline solar panel with a nominal power of 106 W and a power conversion efficiency of 20.1%. The solar cells are covered with protective glass and optical lenses to concentrate and direct sunlight onto them at around 100 times the intensity of standard solar glass.
