Nothing is lost, nothing is created, everything is transformed

[imane571]

Hello, dear user.
I am new to this forumand I hope to learn something from it.
In short I would like to know if it was possible to use energy and in parallel the recovered with a high yield?
I apologize if what I asked is foolish ...
Thank you in advance,,

[Opale2sang]

Bonjour.

I don't think the term "used" is the right one to talk about energy.
In fact we transform rather any energy into another, which is why we say that "nothing is lost".
So if we go back to your question which becomes "I would like to know if it was possible to transform one energy into another with a great yield?"
Yes it is possible with a yield "close to 100%" in the case of the transformation of ordinary matter / antimatter into thermal energy.

That answers your question.

Kind regards.

[Remundo]

conversion to 100% yield exist

mechanical energy in thermal energy (friction brake)

electrical energy in thermal energy (radiator)

[PVresistif]

the first thing before recovering energy is not to lose it!
This is particularly applicable to a house for both heating and hot water; for hot water I did a subject last week called "Hot water production efficiency", go see ...
on the other hand general rule: the world of the business (the state, the companies of the energy) seek only one thing: it is to make to spend always more while consuming more and / or by inventing always more expensive systems and more complex that require a lot of maintenance ...
Example: my water heater installed in a heated room has no losses and costs 160 €; it has much more efficiency than a thermodynamic water heater installed 20 m from the devices. Very big drawback for the state: I paid 30 € of VAT while I would have paid 500 € with a thermodynamic! C ' was before 2012, since the regulation (RT2012) made mandatory solutions with "high VAT content".
But my rule: let's be ultra-selfish, for us and the planet
Greetings

[izentrop]

A first price water heater is often a magnesium anode and the relationship between the cost of energy and its value is another story that Jancovici has developed very well https://jancovici.com/transition-energe ... -fastoche/