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A “solar hooter” protects southern Indian farms from…
A low-cost “solar hooter” may keep animal intruders at bay on…
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A solar sprayer puts pest control in reach…
A new lightweight and low-cost solar-powered sprayer could put pest control…
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How to Build a Solar-Powered USB Charger for…
Part Two in a two-part series. Part One: How to build a…
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Modular solar micro-grids light off-grid homes
Samuel Egbu used to pay 50 naira (US $0.32) to charge…
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Coming soon in Nicaragua: A solar mobile dental…
Update July 2016: Engineering Smiles is in the midst of a…
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Next-Gen Solar in Off-Grid Africa: Five Questions with…
One million Africans could have reliable solar power within the next…
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How to Build a Solar-Powered Electronic Circuit
Part One of a two-part series. Part Two: How to build a…
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Metered Micro Grids in India: Five Questions with…
Residents of 18 villages in rural India pay for solar electricity…
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Darkness Was Gone
Light is one of those basic things like food, safe water…
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A new fold-up solar panel joins the field…
Wall sockets don’t need a eulogy, yet, but Harold Tan is…