High Efficiency MPPT Solar Charger
Photovoltaic

High Efficiency MPPT Solar Charger

A 75 watt MPPT Solar Charger with tons of features. Efficiency > 97%, USB interface, data logging, 2 USB charging ports and much more...by Lukas Fässler This is an open source project that I've been working on for several years now. From its modest beginnings it has evolved to a...

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Researchers Develop New Hybrid Solar Panel That Can Generate Power From Rain Too
Photovoltaic

Researchers Develop New Hybrid Solar Panel That Can Generate Power From Rain Too

The researchers at Soochow University in China, have published a paper on the hybrid device that is able to harness the power of sun and rain using a hybrid panel. By attaching a transparent nanogenerator to a silicon solar cell, researchers have designed a device that harvests...

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DC-DC converter starts up and operates from a single photocell
Photovoltaic

DC-DC converter starts up and operates from a single photocell

by Marian Stofka @ www.edn.com: The bq25504 from Texas Instruments is a good candidate to become a milestone on the road to micro-power management and energy harvesting. A prominent feature of this IC is its ability to start up at a supply voltage as low as 330 mV typically, and 450...

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Solar energy harvester IC that operates with indoor lighting
Photovoltaic

Solar energy harvester IC that operates with indoor lighting

Saelig Company, Inc. (www.saelig.com) has introduced the patented Sol Chip Saturn802 Energy Harvester IC - a unique photovoltaic (PV) cell which can produce output voltage levels of 0.75V, 1.5V, 2.25V, 3.0V, 4.5V, and 9V, which existing solar cells cannot do.  The maximum power which...

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Perovskite solar cells stabilized at 19% efficiency
Photovoltaic

Perovskite solar cells stabilized at 19% efficiency

Researchers at EPFL in Switzerland have found that adding large organic compounds called guanidinium (CH6N3+) into methylammonium lead iodide perovskite solar cells can provide stable power efficiency of 19%, approaching that of silicon cells. by Nick Flaherty @ eenewseurope.com: The...

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Grid-connected solar microinverter reference design
PhotovoltaicPower

Grid-connected solar microinverter reference design

A PDF from Microchip on the theory behind inverter design connected to grip power.: There are two main requirements for solar inverter systems: harvest available energy from the PV panel and inject a sinusoidal current into the grid in phase with the grid voltage. In order to harvest...

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Bismuth Oxyiodide (BiOI)—A Non-toxic Alternative To Solar Cells
PhotovoltaicScience

Bismuth Oxyiodide (BiOI)—A Non-toxic Alternative To Solar Cells

Bismuth is considered as a "green-element" and bismuth-based compounds are gaining attention as potentially non-toxic and defect-tolerant solar absorbers. The researchers of the University of Cambridge and the United States developed theoretical and experimental methods to show that...

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Solar Power Module v2
Photovoltaic

Solar Power Module v2

Chip McClelland @ hackster.io published his solar li-po battery charger based on MCP73871 to manage the solar and DC charging of the LiPo battery, TPS63020 Buck-Boost Converter and Maxim 74043 LiPo Fuel Gauge. He writes: I build connected sensor which are often deployed in local...

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