Solar Module

Monocrystalline solar modules more resistant to hail than polycrystalline panels

An international research team has developed a new experimental setup to conduct hail impact tests for solar modules. The setup consists of an air compressor, pressure chamber, launcher barrel, and ice ball speed measuring apparatus. The latter is based on an adjustable barrel, and solenoid valve ensuring precise testing in controlled conditions. The scientists explained …

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New research shows impact of dust on PV module temperature, performance

International researchers have investigated the impact of dust accumulation on the performance of PV systems in two climate regions of Pakistan. They quantified the precise amount of dust density on the panels and analyzed the composition and particle size. The scientists created one setup on the rooftop of a building in the Pakistani capital, Islamabad, …

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Longi announces 27.09% efficiency for heterojunction back contact solar cell

Chinese solar module manufacturer Longi has achieved a power conversion efficiency of 27.09% for an HBC solar cell. Germany’s Institute for Solar Energy Research (ISFH) has confirmed the result. Longi said the result was enabled through a new laser graphical process that costs less than conventional high-cost photolithography processes. “This substitution has effectively reduced the cost of the BC …

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Make PV modules as cheap as possible, but not cheaper

The dream of solar cell and PV module manufacturing outside of Asia has become increasingly distant. A combination of falling PV module prices and China’s PV module manufacturers allegedly sitting on up to two months’ worth of stock is adding to the maelstrom. Plans for GW-scale PV cell and module production facilities in the US and Europe …

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China module prices hit record lows, operating rates estimated around 60%

The Chinese Module Marker (CMM), which is the OPIS benchmark for mono PERC modules from China, and TOPCon module prices hit another historical low this week falling $0.008 per Watt peak (wp) and $0.002/wp to $0.130 and $0.140/wp respectively, according to OPIS data. Weak market sentiment and lackluster export demand continue to weigh on the …

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China polysilicon prices rise for the eighth consecutive week

China Mono Grade, OPIS’ assessment for polysilicon in the country, extended gains for an eighth week, edging up 2.38% on-week to 75.50 CNY ($10.36)/kg. This market continues to contend with some short-term bullish factors. The increase in polysilicon production in August was still lower than expected, “mainly due to the shortage of electricity in summer,” …

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Researchers assess degradation in PV systems older than 15 years

Scientists at the Polish Academy of Sciences have studied PV installations older than 15 years and observed a decrease in energy productivity ranging from 1.9% to 2.9% over a 16-year period. They conducted their tests on two rooftop PV systems in Sinsheim, a town in southwestern Germany. The first system, a 37.8 kW grid-connected array, consists of …

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