PV systems

New MPPT technique based on improved snake algorithm

A group of researchers from Lanzhou Jiaotong University in China has developed a maximum power point tracking (MPPT) technique based on an improved snake optimizer (ISO) algorithm. The ISO is a swarm-intelligence-based optimization algorithm proposed in 2022 to improve the typical shortcomings of the snake algorithm. The latter is inspired by the behavior of snakes …

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How to select your Photovoltaic Power Plant Cable?

Photovoltaic power plant cable selection In the entire PV system, although the cost proportion of the cable is not high, it plays an important role in connecting components, inverters, distribution boxes, and power grids. It has an important impact on the operation safety and stability of the entire system, and even the overall profitability of …

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Global inventory map of floating photovoltaics

A group of researchers led by China’s Nanjing University has created a global-scale inventory map to determine the spatio-temporal distribution of floating photovoltaics. “Existing statistical reports on water-surface photovoltaics (WSPV) only provide aggregated summary statistics but lack spatiotemporal information, which hinders the environmental assessment and policy management,” the research’s lead author, Shanchuan Guo, told pv magazine. “We developed a new …

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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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Global sales of off-grid solar energy kits hit 9.5 million units in 2022

A new report by GOGLA shows annual sales of solar energy kits (lanterns, multi-light systems, and solar home systems) globally reached 9.5 million units in 2022, with 5.2 million sold between July and December 2022. “This clearly shows that we have learned to value them as we go. We have also learned to value the …

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What is a Hybrid Solar System, and is it Worth it?

If you’re interested in going solar, it’s important to know about the options available to you—especially because new developments mean there is better technology on the market than ever before. One compelling option is a hybrid solar system, which is tied to a grid but also has special hybrid inverters and battery combinations that allow …

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