Business

Studying the effects of crypto mining on Texas power grid

Cryptocurrency transactions may be costing more than just transaction fees. The electricity used for these transactions is more than what some countries, like Argentina and Australia, use in an entire year.

Electronics & Semiconductors

Development of a self-resonant smart energy harvester

The Internet of Things (IoT) is a network based on wireless sensor nodes that provide resources and information. For the long-lasting use of IoT devices, their batteries must be replaced, or a number of power line connections ...

Energy & Green Tech

Researchers work toward harnessing ocean energy to power devices

Tsunamis, hurricanes, and maritime weather are monitored using sensors and other devices on platforms in the ocean to help keep coastal communities safe—until the batteries on these platforms run out of juice. Without power, ...

Energy & Green Tech

Video: What is marine energy?

So you have heard of solar power and wind energy, but what about their younger cousin, marine energy?

Engineering

Engineers build a battery-free, wireless underwater camera

Scientists estimate that more than 95 percent of Earth's oceans have never been observed, which means we have seen less of our planet's ocean than we have the far side of the moon or the surface of Mars.

Energy & Green Tech

Californians told not to charge EVs as grid struggles in heat wave

Californians were told Wednesday not to charge their electric vehicles during peak hours, just days after the state said it would stop selling gas-powered cars, as the aging electricity grid struggles with a fearsome heatwave.

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