Energy & Green Tech

Up to 78 million batteries will be discarded daily by 2025

About 78 million batteries powering IoT devices will be dumped globally every day by 2025 if nothing is done to improve their lifespan. This dire statistic comes from EnABLES, an EU-funded project that's urging researchers ...

Energy & Green Tech

Green hydrogen production from curtailed wind and solar power

Designing future low-carbon energy systems to use power generated in excess of the grid's demands to produce hydrogen fuel could substantially lower electricity costs, according to new work published by Advances in Applied ...

Engineering

Expanding wind energy while preserving scenery

Wind energy is of outstanding importance to the energy transition in Germany. According to the Federal Statistical Office, its share in total gross electricity production of about 24% is far higher than those of all other ...

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Solar power

Solar power is the result of converting sunlight into electricity. Sunlight can be converted directly into electricity using photovoltaics (PV), or indirectly with concentrating solar power (CSP), which normally focuses the sun's energy to boil water which is then used to provide power. The largest solar power plants, like the 354 MW SEGS, are concentrating solar thermal plants, but recently multi-megawatt photovoltaic plants have been built. Completed in 2008, the 46 MW Moura photovoltaic power station in Portugal and the 40 MW Waldpolenz Solar Park in Germany are characteristic of the trend toward larger photovoltaic power stations. Much larger ones are proposed, such as the 550 MW Topaz Solar Farm, and the 600 MW Rancho Cielo Solar Farm.

Solar power is a predictably intermittent energy source, meaning that whilst solar power is not available at all times, we can predict with a very good degree of accuracy when it will and will not be available. Some technologies, such as solar thermal concentrators with an element of thermal storage, have the potential to eliminate the intermittency of solar power, by storing spare solar power in the form of heat; and using this heat overnight or during periods that solar power is not available to produce electricity. This technology has the potential to make solar power "dispatchable", as the heat source can be used to generate electricity at will. Solar power installations are normally supplemented by storage or another energy source, for example with wind power and hydropower.

This text uses material from Wikipedia, licensed under CC BY-SA