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Technology and R&D

New method could potentially produce hydrogen from biogas for $2/kg

Kore, an energy startup in California, has developed a new way to produce hydrogen from biogas, and is now poised to build a commercial-scale demonstration facility in Los Angeles. It said half of the carbon in the feedstock can be converted into gas, while the other half can be converted into solid elemental carbon char.

Cost comparison between lithium batteries, fuel cells, reversible solid oxide cells as storage for off-grid rooftop PV

Scientists in the United Arab Emirates have looked at how off-grid rooftop PV could be combined with batteries, fuel cells or reversible solid oxide cells for energy storage. The modeling assumed a typical commercial building in Los Angeles.

‘Pulsed Joule heating’ tech to remove snow, frost, ice from solar modules

US scientists have developed a way to remove snow and ice from solar panels at a much faster rate than conventional approaches. It is based on a glass coating on a film with high optical transparency and superhydrophobicity.

Small-scale floating PV with pumped hydro storage

Indian scientists have developed a system under which a pumped-hydro facility stores grid electricity during off-peak hours by pumping water to an upper reservoir. During peak hours, the system feeds the load, rather than taking power from the grid.

The long read: Decision time for India’s solar manufacturing plans

India is expanding solar cell production capacity in a big way. Will manufacturers go down the established mono PERC route or leapfrog to advanced n-type technologies? Uma Gupta investigates.

Terracotta solar tiles for historical buildings

Germany’s paXos, whose solar roof tiles were bought by Meyer Burger and unveiled last year, has shown off its new “Beaver Tail” terracotta solar tiles at Intersolar 2022.

Hygenco commissions green hydrogen pilot plant powered by off-grid solar 

India-based Hygenco has set up a green hydrogen generation plant on a build-own-operate basis in Madhya Pradesh. The alkaline electrolysis-based plant is co-located with a solar PV project in the state’s Ujjain district. 

High-voltage residential battery from Varta

The new high-voltage Varta.wall storage device features an aluminum design and is available in capacities ranging from 10 kWh to 20 kWh. It also boasts an emergency power function.

Solis unveils off-grid PV inverter

The S5-EO1P(4-5)K-48 series off-grid PV inverter has an efficiency of 96.7% and supports parallel operation of up to 10 units, which allows for a system capacity of up to 50 kW. According to the manufacturer, the device is compatible with all top-tier brands of lithium-ion and lead-acid batteries.

Vertical PV system for green rooftops

Norwegian startup Over Easy Solar AS is launching a vertical PV system for rooftop applications at this year’s Smarter E in Munich, Germany.

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