Author: Mokurai

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Renewable Roundup: Whatever it is, it’s time (from MLK to John Lewis to me and you)

We became a majority in the US in the 1990s, held back only by the Vast RightWrong-Wing Conspiracy of lies, hate, gerrymanders, voter suppression, a corrupt Supreme Court, and the Russians, aided by thatidiotComey. But now it’s time. By Mokurai Our time has come. All of us, Black, White, Green, or Purple; Jew and Gentile and Muslim and whatever; […]

July 27th

Langston Hughs – Let America Be America Again

Langston Hughes was a great man and a great poet. In particular he is the perfect antidote for MAGAism. “Let America Be America Again (America never was America to me.)” We should have trumpeted today’s poem from the moment Trump came down the escalator. We should be declaiming it in chorus every day. For myself, I […]

July 12th

Renewable Roundup: Solar powered Air Force base

The Federal government is way too big for Trump to be able to interfere with all of it. US DoD is one of the loudest voices warning about dire consequences of global warming, and is trying to make itself as independent of fossil fuels as possible—air, land, and sea. By Mokurai Nellis Air Force Base […]

June 29th

Renewable Roundup: 25.4%-Efficient solar cells

The first “practical” solar cells came out in 1954 with 6% efficiency. Research cells have now reached 44.5% efficiency, while 23% was the best in commercial products last year. Now we are at 25.4% with a new product about to go into production. It combines two established technologies, offering the best of both. By Mokurai […]

June 25th

Renewable Roundup: Europe goes big on hydrogen

We have looked at applications of hydrogen, and specific projects. Here is an analysis of the entire European Union hydrogen market through 2030.  The problem, as with many technologies, is reducing costs to be competitive with fossil fuels. By Mokurai But there are applications where that is not necessary. When renewable energy is overproduced in […]

June 23rd

Renewable Roundup: Hydrogen fuel cells verses batteries in Australia

Despite the political hooraw about renewables in Australia, the people and the private sector are charging [sic] ahead. One can argue about batteries or fuel cells for vehicles of various sorts, or one can treat them as complementary technologies, with different strengths for different applications. (As also for Renewable Natural Gas [sic] from landfills and such.) We also […]

June 21st

Renewable Roundup: 1.5 terawatts of solar energy in 2024

Carl Sagan didn’t say it, but I will: Terawatts and terawatts and terawatts…When I started this series more than a year ago, we had about a TW of hydro and a TW of wind and solar. This has been a difficult year, but we are going to come roaring back from covid-19. By Mokurai Global […]

June 18th