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Octaspherosilicates-based anti-icing coating for PV systems

Developed by scientists in Poland, the new coating uses transparent silicone-epoxy modified with functionalized octaspherosilicates. The researchers have created five samples, each with a different combination of chemicals, and have found that ice adhesion was reduced by up to 43%, with freezing delay time growing by up to 70 times.

PV fault detection method based on deep learning of aerial images

Conceived an international research group, the proposed model uses the convolutional neural network (CNN) architecture U-Net for image segmentation and the the CNN architecture InceptionV3-Net for fault classification.

Power-generating breakwaters for floating photovoltaics

Scientists from Singapore have designed new floating breakwaters integrating wave energy converters that can be used to reduce the impact of waves on offshore PV systems. Their analysis showed that the wave energy systems can achieve the highest additional power output when the wavelength is shorter.

New deep learning tech uses electroluminescence images to identify defective PV cells

The novel method uses the YOLOv8 framework, integrating an attention mechanism and a transformer model. It was tested on a dataset of 4,500 electroluminescence images against several other models and its results were up to 17.2% more accurate.

Low-cost machine learning framework for snail trail detection in PV panels

Conceived by French scientists, the novel system uses ensemble learning and does not require anything more than a commercially available optimizer. Before it makes a decision, the method combines K nearest neighbors, support vector machine, and decision tree learning. Accuracy is reportedly up to 89%.

How much shade is enough?

Researchers have covered part of a rooftop solar plant with a different numbers of shading cloth layers to measure their power, current, and voltage. They have been able to identify a point after which the value of system current and maximum power is no longer sensitive to shading heaviness.

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PV module cooling tech based on single-channel containing nanofluids

Scientists in Mexico have conceived a new solar module cooling tech that can reportedly improve PV power generation by up to 2%. The system uses nanofluids embedded in an aluminum single-channel attached to the back of the panel.

Researchers use artificial neural networks to optimize PV tilt angles

Scientists have tested several machine-learning algorithms to predict the optimal tilt angle (OTA) of solar projects in 37 Indian cities, leading to improvements of up to 90%.

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PV module fault detection tech based on deep learning of electroluminescence

The novel technique is based on the VarifocalNet deep-learning object detection framework, which was reportedly tweaked to achieve quicker and more accurate results. Compared to other such methods, the new approach was found to be the most accurate and third quickest.

Scientists classify weather types based on extreme photovoltaic output events

Scientists used a year’s worth of data from East China to analyze what weather conditions affect abnormal, high, and low PV output days. They also constructed a simple extreme output prediction model and examined the atmospheric circulation anomalies corresponding to extreme output events.

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