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Building my own solar power system

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Re: Building my own solar power system

#351
post #306

Earlier quoted context omitted.

I assumed that meant that big windmills would be much cheaper per watt than small ones, but according to what I'm finding in https://news.ycombinator.com/item?id=44056971 , that doesn't seem to be the case. Small rooftop windmills may actually be cheaper !

There’s another limiting factor though, which is that power is also proportional to (wind speed)^3, and the wind is greater higher up. Although having said that, I do believe the main reasons we don’t use them in the UK are noise and wildlife concerns. In many ways the total efficiency doesn’t matter if it’s generating enough power.

Yes, so it's puzzling that the small windmills (necessarily designed for low wind speeds) cost less per peak watt. You'd think getting more power per square meter higher up would reduce the cost per peak watt. Wind speeds are more consistent up there, too.

The wildlife concerns are completely specious. The main reason you don't use them in the UK are that the wrong sort of people have political power.

Re: Building my own solar power system

#352

Earlier quoted context omitted.

Greed is a Bad attribute in basically every ethical system and religion throughout history. Capitalism, on the contrary, rewards it. The best way to be under capitalism is greedy (sneakily so, if necessary). So yes, it is uniquely new to have a value system that rewards greed.

It doesn't reward greed, it rewards value. You could just as well say national borders reward invasions.

This is a redefining of terms classic in capitalist analysis.

An example I'll take from Cory Doctorow: Google search isn't getting worse. We know this because nobody's toppled Google's monopoly on search. Because of the magic of the market, if what you perceive as search being worse was actually search being worse, then, Google would no longer dominate.

Since google continues to dominate, actually, search isn't worse.

Capitalist analysis requires QED circular logic to justify its inherent contradictions.

Capitalism may occasionally reward value, but very, very rarely does it reward value more than greed.

Proof: teachers are some of the worse paid jobs in our society despite being essentially the backbone of our nation. A single teacher in the course of a year can completely alter the course of history for a classload of kids. Multiply over a two decade career... And that's just elementary school. Highschool teachers will influence hundreds of kids each semester.

Yet their wages in many states cap out at around what a recruiter makes. Recruiters being nothing more than middlemen between a labor market and a hiring market - as a former recruiter, trust me, that multi billion dollar industry creates essentially no value.

Of course the capitalist analysis means the entire system is immune to criticism - "actually, teachers don't get paid much because they don't add much value, if they added more value, they'd get paid more." QED. Circular logic.

"The multi tens of billions of dollars American health insurance industry adds value. If it didn't, it wouldn't be worth multi tens of billions of dollars."

Capitalism rewards greed, and the greediest are the most capitalistically rewarded.

Re: Building my own solar power system

#353
post #144

I’ve been running a solar microgrid on my coffee farm for the last 7years. We started with a few golf cart batteries and 4 panels, these days we’re powering 4 houses, 7 cabins, water extraction, treatment, and RO processing, campus-wide fiber network and switches, path lighting, security systems, and a small server rack. We’re running 6 inverters on our primary system in a three phase configuration, 35kw of panels an…

This is truly interesting and inspiring.

Is there any documentation of your solar microgrid systems for learning purposes? Or better can anyone visit your farm for learning the microgrid systems?

I just found these article back in 2017 and 2022 on microgrid installation in the Caribbean and they looks like promising off-grid solutions for tropical islands [1],[2].

[1] Why Solar Microgrids May Fall Short in Replacing the Caribbean’s Devastated Power Systems (2017):

https://spectrum.ieee.org/should-a-devastated-caribbean-leap...

[2] As rich nations haggle over climate solutions, storm-ravaged Caribbean is taking matters into its own hands (2022):

https://edition.cnn.com/2022/11/15/world/caribbean-solar-pow...

Re: Building my own solar power system

#354
post #77

Earlier quoted context omitted.

The fact that so many people are turning their homes into mini power plants is less a triumph of individualism and more a symptom of a broken system

Abstracting away from any particular grid regulatory environment, distributed solar and batteries make sense and make more and more sense as the cost reduces. Another way of saying that, if we were playing a city simulator as a disembodied beneficent dictator you'd want distributed generation and storage as part of your grid. In reality there's all sorts of complications, compromises, trade-offs, graft and politics b…

My point wasn't that individuals shouldn't install solar, but that the fact so many have to in order to get reliable

Re: Building my own solar power system

#355
post #77

Earlier quoted context omitted.

The fact that so many people are turning their homes into mini power plants is less a triumph of individualism and more a symptom of a broken system

Yeah nothing about home install solar + battery soundly beating utility power prices even paying retail rates for equipment and labor for years on end, as prices on the equipment falls year after year, while utility power prices keep going up makes any fucking sense.

That's what I find so wild
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