Energy & Green Tech

Serving up renewable energy

As decisions about nuclear power installations, wind farms, solar plants, and other energy sources are being discussed, new research published in the International Journal of Business Continuity and Risk Management, reviews ...

Energy & Green Tech

Minnesota grants will prioritize EV charging solar panels

The next group of electric vehicle charging station grants from Minnesota's Volkswagen emissions-cheating settlement will prioritize projects that incorporate solar panels or other sources of local clean energy.

Electronics & Semiconductors

New blended solar cells yield high power conversion efficiencies

Researchers at Hiroshima University in Japan have blended together various polymer and molecular semiconductors as photo-absorbers to create a solar cell with increased power efficiencies and electricity generation. These ...

Engineering

New testing system could become the IoT of photovoltaics

A new system for measuring solar performance over the long term in scalable photovoltaic systems, developed by Arizona State University researchers, represents a breakthrough in the cost and longevity of interconnected power ...

Energy & Green Tech

Green energy transition: Early and steady wins the race

What's the cheapest, easiest way to honor the Paris Agreement of limiting the global warming to 1.5 degrees Celsius? A clear and strong investment in wind and solar power. Starting now.

Energy & Green Tech

Photovoltatronics: Smart solar cells that talk to each other

Imagine you're walking through the city on a sunny summer day. You look at the skyscrapers, the shop buildings, lampposts and electric taxis driving tirelessly to and fro. What you can't see is that every single piece of ...

Energy & Green Tech

Solar power stations in space could be the answer to our energy needs

It sounds like science fiction: giant solar power stations floating in space that beam down enormous amounts of energy to Earth. And for a long time, the concept—first developed by the Russian scientist, Konstantin Tsiolkovsky, ...

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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