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‘Agrivoltaics can certainly be a viable and meaningful alternative to large-scale solar’

US expert in environmental and energy policy Alexis Pascaris spoke with pv magazine about opportunities and barriers associated with agrivoltaics. Agrivoltaics are a very practical and advantageous alternative to large-scale solar, specifically in places where there are land-use constraints or needs for rural economic development, she explains. Differences in costs related to ground-mounted solar can typically be attributed to the raised racking systems or additional fencing, but these upfront investments in specialised hardware are eventually recovered as agrivoltaic systems produce dual-revenue streams.

Photovoltaics and geothermal heat pumps for domestic hot water heating

According to a new study from LUT University, domestic water heating costs may be reduced by combining rooftop PV with geothermal heat pumps. Scientists developed a control method to minimise these costs by taking advantage of cheap spot market electricity and maximised PV power generation, as well as considering heat demand, PV generation forecasts, and heat pump efficiency.

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Computational model for agrivoltaics

A U.S. scientist has developed a computational framework that assesses how well a hypothetical agrivoltaic project would perform in achieving desired outcomes such as the volume of PV electricity produced, and energy-to-agriculture. The method considers the high-frequency decomposition of solar irradiance into multiple rays and analyzes how these rays are propagated forward in time, to assess multiple reflections and absorption for various system configurations. It also takes into account panel inclination, panel refractive indices, sizes, shapes, heights, and albedo.

Cleaning solar modules with sand and wind, on Mars

NASA scientists have partially cleaned up the solar modules of the Insight lander operating on Mars, by using grain sands collected nearby and trickling them on the panels during the windiest time of the day. This handmade technique has made it possible, according to them, to increase the PV array’s yield of about 30 watt-hours of energy per ‘sol,’ or Martian day.

Growatt launches new inverter for commercial and utility-scale projects

The new product has an efficiency of 98.8% and a European efficiency of up to 98.5%. It features 10 independent maximum power point tracking (MPPT) inputs, with MPPT voltage ranging from 180-1000 V.

Nano-micro-scale cooler for solar modules

The proposed technique is based on radiative cooling and consists of a glass coating made with a two-dimensional subwavelength nanostructured grating, which is imprinted in soda-lime glass and has enhanced mid-infrared emissivity, and a micro-structured grating. The temperature decrease provided by the nano-micro-grating coating was found to be approximately up to 5.8 degrees Celsius.

Flexible bifacial kesterite solar cell at 9.3% efficiency

Scientists in China developed a new kesterite solar cell they say could be suitable for indoor or outdoor applications. The bifacial solar cell reached 9.3% frontside efficiency, and also achieved a 9.0% on the backside.

JinkoSolar reaches record 25.25% efficiency with n-type monocrystalline TOPCon solar cell

The Chinese module manufacturer said the 0.35% improvement in efficiency was obtained through material upgrades integrated into the cell process and fabrication. The result was confirmed by China’s National Institute of Metrology.

Containerised, retractable PV system for quick deployment

A Swiss start-up has created a containerised movable PV system that is designed to be easily relocated to allow the use of solar energy in locations where a fixed installation is not an option. The solution is based on a racking technology which can include two racks able to host up to 30 solar panels.

Solar catamaran 100% powered by heterojunction modules headed for Australia

The 100% solar-powered boat will be tested in a 9,000 nautical mile expedition from Chile to Australia that is set to start in December. The vessel is equipped with an 11 kW PV system built with heterojunction modules provided by Russian manufacturer Hevel Solar.

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