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Green news- The positive allure of negative emissionsA tech company has committed to invest in carbon-capture technology. Is it the front edge of a bandwagon, or a one-off anomaly?
- 6 electric aviation companies to watchAlmost half of commercial flights are under 500 miles, putting them within the range of an electric motor.
- Mexican retailer Coppel travels alternative route to a fuel-efficient last mileAfter a successful pilot, the retailer is planning a full implementation covering its entire last-mile fleet of some 1,200 vehicles that make 30,000 home deliveries per day.
- Mexico wants to run a tourist train through its Mayan heartland — should it?Big public works like the Maya Train demand careful planning. But the environmental and social repercussions could be disastrous.
- 'Salmon Gold': Apple promises to embrace fish-friendly gold miningTech giant will source gold for its gadgets from miners registered under the Salmon Gold partnership, which combines mining with habitat protection for wild salmon.
- The positive allure of negative emissions
Tag Archives: home solar systems
Home Solar Systems: Worth the Cost?
Humanity has acknowledged the power of the sun since prehistoric times, awed by the glowing orb whose presence creates day and whose absence plunges the world into darkness.
For all our advances in science and technology, most of the power from the sun still eludes us. NASA reports that we use only one ten-thousandth of the sun’s energy.
Photovoltaic (PV) solar electrical systems offer new and ever-changing ways to harness that energy. The term “photovoltaic” literally means light-electricity.
In 1839, French physicist Edmond Becquerel discovered that sunlight could produce an electric current. Another century would pass before scientists fully understood that this process happens at the atomic level. Albert Einstein’s only Nobel Prize was awarded for his work on the photoelectric effect. By 1958, the space program was using solar cells. Continue reading
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