Tag: levelized cost of energy

I ran into a guy at my last college reunion whose career involves selling enormous sculptures made from solar PV to corporate campuses.  I seem to recall a life-size brontosaurus out in front of some IT company. Obviously, the levelized …

Solar PV Sculpture Read More »

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Here’s a renewable energy concept that I’ve been seeing here and there over the past decade. It’s a means by which a city can generate clean electricity from the water flowing under streets through pipes.

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Here’s an old maxim: People who say it cannot be done should not interrupt those who are doing it.  Wow, that applies so beautifully to the rapid migration to renewable energy.  We get comments all the time promoting coal and …

The Caribbean: Making Renewables Happen Read More »

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Here’s an ocean wave power device that captures energy from the relative motion of their two arms as the wave passes them. According to the company that developed the product, Crestwing, they plan to sell it to energy production companies …

Hydrokinetics Ideas Everywhere, But Do They Hold Water? Read More »

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The subject of high-altitude wind isn’t new.

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It’s sad to see that run-of-river hydro hasn’t taken off, since it’s such an elegant way to extract the kinetic energy from moving water; such an approach has very little impact to aquatic life, and raises few other environmental concerns. 

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Here’s a video depicting one of variations on the theme of extracting energy from ocean waves.  Though I’ve seen countless numbers, I haven’t studied each of the variants thoroughly, so it’s only a guess when I say that this seems …

Concept in Ocean Wave Energy Read More »

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In the wake of a recent and fairly significant blackout in Southern Australia, grid operators made two immediate investments, both focused on meeting future peak electricity demands: an 250 MW open-cycle natural gas plant and a  100-megawatt/129-megawatt-hour battery from Tesla, …

The Cost of Utility Scale Solar and Batteries Coming Into Parity with Natural Gas Peaker Plants Read More »

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One of the challenges facing solar and wind energy is capacity factor, i.e. the ratio of the total energy generated by a device to the total energy that it’s potentially capable of generating (multiplied by 100, to make a percentage). …

Renewable Energy Products that Cause Embarrassment To the Industry Read More »

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My long-time colleague Lindsay Oliver writes, Hi Craig; Have you seen this (The Solutions Project) yet? This is more than interesting:   Yes, Mark Z. Jacobson (professor at Stanford) is a legend to us renewable energy people.  

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