Photovoltaics at any cost - current situation and offers

  • Erstellt am 2022-07-31 13:22:19

WilderSueden

2022-11-27 09:39:33
  • #1
The problem with small wind turbines is
1. expensive
2. low output compared to photovoltaic
3. low-altitude wind in residential areas is turbulent and heavily slowed down
4. maintenance effort due to moving parts
5. vibrations/noise from moving parts (especially problematic when mounted on the house)
6. wear and tear from moving parts

And yes, there are ones with fewer moving parts, but that comes at the expense of the already poor efficiency. Economies of scale are pronounced in wind power, and downsizing brings many inverse economies of scale. In contrast, the same photovoltaic module is simply installed tens of thousands of times in large systems. Problem 3 cannot fundamentally be solved anyway.
Basically, for the foreseeable future (at least 10 years), a photovoltaic system will almost always outperform a wind turbine for a single-family house. I’ll also venture to say that even storage for photovoltaic will outperform a wind turbine. And then we are looking at an investment of the third order.
 

SumsumBiene

2022-11-27 11:50:33
  • #2
I have apparently read different articles. It said something about cheaper and more effective.
 

Nida35a

2022-11-27 12:08:38
  • #3
I’m in too, caught in - hung with, I’m bringing Skat cards into the cell.
 

motorradsilke

2022-11-27 12:53:25
  • #4

I have also read something like that. Fence-shaped wind turbines, less prone to failure, very effective, but not yet ready for mass production. Maybe our government will manage to invest some funding into such projects and into production.

In general, I hope the turbines become cheaper again once China abandons its zero-Covid policy and maybe corresponding productions are established in other countries. We had that in Germany; if they hadn’t been allowed to go bankrupt but had been subsidized, we would be in a better position now. Relevant specialists could also be trained in 2 to 3 years.
 

WilderSueden

2022-11-27 12:54:11
  • #5
Currently, these are all prototypes. Anyone can claim a lot, especially regarding the price. True mass production is a completely different story.
 

motorradsilke

2022-11-27 12:58:27
  • #6
Yes, but it would be worth pursuing further. Almost everyone has fence space or could set up one.
 

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