solar

SCIENTISTS DEVELOP SAFER LEAD-BASED PEROVSKITE SOLAR CELL STRUCTURE

SCIENTISTS DEVELOP SAFER LEAD-BASED PEROVSKITE SOLAR CELL STRUCTURE

Researchers at Northern Illinois University and the U.S. Department of Energy’s (DOE) National Renewable Energy Laboratory (NREL) in Golden, Colorado, reported in the journal Nature on a potential breakthrough in the development of hybrid perovskite solar cells. Considered rising stars in the field of solar energy, perovskite solar cells convert light into electricity. They’re potentially cheaper and simpler to produce than …

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Arduino-Peak-Power-Tracker-Solar-Charger

Arduino Peak Power Tracker Solar Charger

This project is an update of my original Peak Power Tracker Battery Charger Project. It is designed to control a 12V solar panel charging a 12V lead acid battery. The updated version of this project uses the Arduino Duemilanove development board (from www.sparkfun.com) as the basis for the project. Then I used the Arduino Protoshield …

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AMBIENT HUMIDITY ENERGY HARVESTERS COULD COMPETE WITH SOLAR CELLS

AMBIENT HUMIDITY ENERGY HARVESTERS COULD COMPETE WITH SOLAR CELLS

Leveraging the natural adsorption–desorption exchange of water molecules from ambient air at the interface of a nanoporous mesh of protein nanowires, a team of researchers from the University of Massachusetts has demonstrated a durable form of energy harvesting that could potentially compete with solar cells on volumetric power density. By Julien Happich @ eenewseurope.com Publishing their …

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Arduino Solar Garden Light

Intelligent Solar Garden Light using an Arduino- Part 1

I bought a solar powered garden light. The solar panel charges the batteries and when it gets dark the lights (3x LEDs) turn on until it either gets lights again or the batteries run out. It has a small amount of intelligence (turns on when dark off when light) but not enough! Time for some …

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RAKWIRELESS RAK4260 IS A TINY LORAWAN MODULE BASED ON MICROCHIP SAMR34 LORA SIP

RAKWIRELESS RAK4260 IS A TINY LORAWAN MODULE BASED ON MICROCHIP SAMR34 LORA SIP

Rakwireless has just announced a new module part of their LPWAN family:  RAK4260 LoRaWAN module based on Microchip ATSAMR34J18B LoRa SiP and at just 15x15x1.2 mm, one of the smallest LoRaWAN modules in the market. The new module is cheaper than the company’s earlier RAK811 module and consumes less power at just 790 nA in sleep mode. The company also provides a RAK4260 evaluation …

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INCANDESCENT LIGHT BULBS AT THE NANOSCALE

INCANDESCENT LIGHT BULBS AT THE NANOSCALE

Using tiny arrays of carbon nanotubes, a team of researchers at Rice University has designed nanoscale incandescent light source that could be tuned to precisely emit at specific wavelength, based on the materials’ configuration. The so-called nanoscale thermal emitters described in a paper titled “Non‐Hermitian Selective Thermal Emitters using Metal–Semiconductor Hybrid Resonators” published in the journal of …

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