Since our solar thermal system is currently bringing me a lot of satisfaction, I would like to continue exploring renewable energy options and would find it helpful to receive information from you about micro wind turbines (I am not mentioning any specific company to avoid violating the forum’s advertising rules) for single-family homes, or to hear about your practical experiences with them. I am still at the very beginning.
As some of you may already know, our two-person single-family home (postal code 045xx) was built only to meet the minimum energy-saving regulations, because we did not understand the requirements, incentives, calculations, etc. for a more energy-efficient house. However, we would now like to explore further steps and currently have more free time than during the building planning phase.
Thanks in advance.
As some of you may already know, our two-person single-family home (postal code 045xx) was built only to meet the minimum energy-saving regulations, because we did not understand the requirements, incentives, calculations, etc. for a more energy-efficient house. However, we would now like to explore further steps and currently have more free time than during the building planning phase.
Thanks in advance.
W
WilderSueden21 Oct 2022 15:22Tolentino schrieb:
There are the new ones from Spain and the USA now. I’m really looking forward to those... Even the best system can’t perform well if it’s installed in the wind shadow of a 50-year-old oak tree. And even if you’re not directly in the wind shadow, obstacles near the ground have a major impact, especially in low wind conditions. There’s a good reason why proper wind turbines are getting taller and taller.
No, they somehow take that into account. Those aren’t even wheels anymore.
The first one was like a fence (Spain) – the other one uses the air currents that naturally occur around buildings (like updrafts or downdrafts, I don’t remember exactly). Unfortunately, the second one has to be placed on the roof and therefore competes with the solar panels. But the fence idea sounds really interesting to me. There is always wind along the street.
Where I live, it’s actually quite windy. I don’t know why. There are houses and trees everywhere around here.
The first one was like a fence (Spain) – the other one uses the air currents that naturally occur around buildings (like updrafts or downdrafts, I don’t remember exactly). Unfortunately, the second one has to be placed on the roof and therefore competes with the solar panels. But the fence idea sounds really interesting to me. There is always wind along the street.
Where I live, it’s actually quite windy. I don’t know why. There are houses and trees everywhere around here.
S
SaniererNRW12321 Oct 2022 16:27Tolentino schrieb:
One of them was like a fence (Spain) – the other uses the air currents that naturally occur around buildings (like updrafts or downdrafts, I don’t remember exactly). Unfortunately, the second one has to be installed on the roof, which competes with photovoltaic panels. But the fence idea sounds really interesting to me. There is always wind by the street. These are all startups that are far from being ready for mass production – mostly only single pilot installations exist. You can expect it will take several more years before these can be bought (regardless of whether it’s the Spanish, Polish, or US systems). And price-wise? Like with any new technology, they probably won’t be very competitive at first.
Spanish turbine – as of April 2022, only one prototype installation
Polish garden fence – not something I’d want in my garden... 10m (33 feet) = 1kW output – startup
US alternative – a one-off inventor’s prototype
W
WilderSueden21 Oct 2022 16:41Tolentino schrieb:
It's actually quite windy where I am. I don’t know why. There are houses and trees everywhere, after all. Wind is a complex phenomenon. Generally, wind tends to be strongest in open areas. However, depending on wind direction, strength, topography, and built environment, winds can be intensified locally through channeling and turbulence. These changes can occur over relatively small distances.
I have also seen some of the headlines. Nice ideas, and in 10 years we can see whether they are actually available for easy purchase. Just because something works as a prototype doesn’t mean it can be mass-produced economically and on a large scale.
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