Dossier renewable energies being created

[Arphaxad]

'evening everyone,

I find this dossier on renewable energies very interesting and there is so much to say!
Concerning the solar voltaic (with mono and polycrystalin panel), I retained several things:
- the panels are very polluting as long as they are recycled correctly. Their lifespan is around 25 years.
- an inverter must be provided in the installation to regulate the electric current: it is a device which has a lifespan of 5 years which must be renewed and recylced.
- depending on the region, depreciation is not that interesting.

However, I discovered microcogeneration a little over a year ago. It is a set of Stirling engines using heat (from a boiler for example) and producing electricity.
The electric quantity is not there to replace the wind or the photovoltaic but to recover a max the heat of a boiler.

[the middle]

micro CHP. It is a set of Stirling engines using heat (

Microgeneration: it's not just stirling
It may also be an internal combustion engine that generates heat and electricity.

[Arphaxad]

not very ecological the internal combustion engine ... Especially since it is noisy and not very suitable for heating a house.

A Stirling engine is silent and absolutely neutral on the environment.

[the middle]

not very ecological the internal combustion engine ...

Long debate on econology

Especially since it's noisy

We talked about it on econology (little debate)

and not very suitable for heating a house.

Ha good .... (alternator power, engine heat recovery, exhaust heat recovery; all that together, it makes calories)

A Stirling engine is silent and absolutely neutral on the environment.

It depends on what you heat your stirling with
In any case, my comment simply served to underline that cogeneration, or micro-cogeneration is not only about stirling.

[the middle]

For Arphaxad:
http://www.cogengreen.com/cogeneration_ ... hnique.htm

[Arphaxad]

re!

I did not want to dwell on the subject

I would just let you know that micro-cogeneration existed and made it possible to further reduce our energy consumption.

When I speak of Micro-cogeneration it is particularly with a stove or a wood boiler.

This is the solution I have chosen which seems to me the best in a bio-compatible construction project directly linked to other systems (low-temperature underfloor heating, solar water heaters, rainwater recovery. , ...)

... and 53 to 72 db for an engine, it's not nothing
(personally I prefer the warmth of a fireplace or a wood stove and the crackling of the fire than the hum of an engine)

[the middle]

When I speak of Micro-cogeneration it is particularly with a stove or a wood boiler.

So here's your thing
https://www.econologie.com/cogeneration- ... -3866.html

[boubka]

source forum future science

Price of the boiler with the stirling: 17 000 € ... ouch. But hey when you see the price of some current heating systems ...

Another Sunmachine model is also presented at € 23500, but there are fewer technical details.

[Arphaxad]

17ke for a boiler ... it's really expensive!

I had done research more than a year ago, and in France there was nothing (for individuals).

The only brand I had found was:
http://www.stirlingpowermodule.com/

Thanks for the sunmachine link (which I didn't know).

For prices, I'm not sure to find much cheaper ...
So it would be more interesting to install a small wind turbine on the roof.

Anyway, my construction project is on standby and I am afraid that it will be compromised.


a+
(Thanks again for the information)

[Yves Thomas]

With regard to the vortex wind turbines, it seems that one parameter is missing: that of the energy consumed to produce such quantities of energy. Indeed, a surface area of ​​2 to 4 km2 still represents a solar energy of 2 to 4 MW used to produce the volume of air necessary for their operation. Couldn't such an amount of energy used be used with much smaller structures in order to provide the volume of air necessary for the vortex effect? Effect that manifests in many physical conditions?