Archive for the ‘Solar’ Category:

2020-10-15 Irrigate With Moisture From Air

I’ve seen so many locations in Southern California that are pretty much barren mostly because the country is lacking water. The cost of water in So. Cal. is high because there are so many people that the water they need has to be imported from hundreds of miles away — as far as Northern California.

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2020-10-07 The Solenco PowerBox™ System

This self-contained system uses solar PV panels as the only power input. It generates and stores green hydrogen, then uses it later for both electricity and heat. The fuel cell’s byproduct is water. One important “problem” that I see is that this system makes the customer completely independent of the electricity _and_ gas utilities. There

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2020-10-03 Tesla And Hydrogen

My comment to a YouTube video. Like Tom says, “in my opinion…” There will be an upward trend in the production of green hydrogen and consequently a downward trend in the cost per kg. Large fleets of heavy vehicles can be converted from diesel to hydrogen, and it has the advantage of faster refueling than

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2020-10-01 Renewables Don’t Need Baseload Power

This 4.7 min. TED Talk Youtube video dispels the myth that solar and wind can’t do the job without “base load” power. Amory Lovins is with the US NREL, and is an authority on this subject. He also states that renewables are less expensive than fossil or nuclear power. https://youtu.be/Oo8iEL6SqgI

2020-09-28 Tesla, Sonnen, And Other Home Battery Systems

Matt Ferrell has the text to his YouTube video about the Tesla Powerwall, Sonnen, etc. and a link to the video. The Tesla Powerwall and others cost about $10,000 installed. The systems may allow you to run your home from the battery when there is a power outage on the grid. Solar PV panels will

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2020-09-10 Model Of Least Cost All Renewables Grid

This is supposed to be a least cost model. Solar reaching up to 4.3 times capacity. I would expect that much of the curtailment would be replaced by “flexible loads” controlled by the grid, most of which would be hydrogen generation. The hydrogen could be stored and used for longer term storage/generation and/or transportation fuel.

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2020-09-03 Distributed Generation And Islanding

There is a lot of concern for safety when DGs (distributed generators) are connected to the power grid. The grid operators must ensure that none of the DGs feed back into the grid when the grid generator is not operating. They go through several scenarios in this article. https://electrical-engineering-portal.com/protection-impacts-intentional-islanding-distributed-generation From what I see the DG

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2020-08-31 Costs of Wind Power; Life Cycle GHGs (Wiki)

From https://en.m.wikipedia.org/wiki/Cost_of_electricity_by_source The cost of wind power is less than solar. << In the windy great plains expanse of the central United States new-construction wind power costs in 2017 are compellingly below costs of continued use of existing coal burning plants. Wind power can be contracted via a power purchase agreement at two cents per

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