Scientists in Ghana have developed a device that combines a conventional solar PV-powered steam cooker with sand-based thermal energy storage. The system can achieve a thermal efficiency of 38.9% and ...

“My phone has not stopped ringing since the LPG crisis began,” said Priyadarshan Sahasrabuddhe of Pune, founder of Vaayu Mitra, a decentralised, waste-to-energy biogas model. The set-up promotes the ...

Solar is a clean, renewable energy source, which decreases deforestation, fossil fuel usage, and greenhouse gas emissions. Solar ovens are devices that collect energy from sunlight to focus the heat ...

Scientists have conducted an analysis of 20 years of academic publications about PV-powered electric cooking and have found interest in the field peaked in 2021-2022 in both developing and developed ...

A solar oven is an easy, environmentally friendly way to cook food solely using the sun's power. It works by reflecting sunlight onto an enclosed surface. You can use a solar oven to heat water and ...

If you liked this story, share it with other people. The ten 2021 winners of the Keeling Curve Prize for climate change solutions are recognized for innovations in grid-scale energy storage, e-bikes, ...

Editor’s Note: This story was identified by Call to Earth guest editor Rodrigo Pacheco. He is a chef who grows sustainable food at his restaurant and creative permaculture project in Ecuador, and he ...

Equity Bank Uganda is positioning itself at the center of Uganda's growing clean energy transition, unveiling an aggressive financing strategy aimed at making solar technologies, clean cooking systems ...

Even at the ripe of age of 79, I am living proof of the old adage, “You learn something new every day.” Recently, I was visiting someone who had a solar cooker on her deck. I don’t think I’d ever seen ...