[burnz]

Originally Posted by oldel

Oh, I see our angry facebook poster has returned here instead of starting his own blog elsewhere.
You are mad, YOUR reality is bonkers. Stop getting news from facebook or where ever.
Haven't you heard of the Hunter Power project? It's mentioned on the same pages as snowy 2.0 but it's not in the same place.
https://www.snowyhydro.com.au/hunter-power-project/

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I mean what would you like to do? You know coal plants aren't getting built and the existing ones are closing. Hydro can't do everything and 2.0 is more of a battery really. So currently people are building gas etc. It's not green, but it's not greenies who want it anyway - they'd prefer solar and wind.

But the resources sector is huge and powerful, it's them that are pushing the governments to gas! (or bringing up nuclear).

E: anyway, snowy 2.0 isn't a green power supply, (that would be solar, wind or tidal instead). Snowy 2.0 is a pumped hydro plan, ie a battery. Still need to make power somewhere but those in power are getting lobbied by the resource industry and pushing gas upon us. Keeps those industries in business, keeps miners mining, and more employed servicing and maintaining it. Nothing green about it, it's not a green solution. It's about jobs etc.

crazzy dazz is correct..

First Law
The first law of thermodynamics states: In a process without transfer of matter, the change in internal energy, {\displaystyle \Delta U}\Delta U, of a thermodynamic system is equal to the energy gained as heat, {\displaystyle Q}Q, less the thermodynamic work, {\displaystyle W}W, done by the system on its surroundings.[26][nb 1]

{\displaystyle \Delta U=Q-W}{\displaystyle \Delta U=Q-W}.
For processes that include transfer of matter, a further statement is needed: With due account of the respective fiducial reference states of the systems, when two systems, which may be of different chemical compositions, initially separated only by an impermeable wall, and otherwise isolated, are combined into a new system by the thermodynamic operation of removal of the wall, then

{\displaystyle U_{0}=U_{1}+U_{2}}{\displaystyle U_{0}=U_{1}+U_{2}},
where U0 denotes the internal energy of the combined system, and U1 and U2 denote the internal energies of the respective separated systems.

Adapted for thermodynamics, this law is an expression of the principle of conservation of energy, which states that energy can be transformed (changed from one form to another), but cannot be created or destroyed.[27]

Internal energy is a principal property of the thermodynamic state, while heat and work are modes of energy transfer by which a process may change this state. A change of internal energy of a system may be achieved by any combination of heat added or removed and work performed on or by the system. As a function of state, the internal energy does not depend on the manner, or on the path through intermediate steps, by which the system arrived at its state.

Second Law
A traditional version of the second law of thermodynamics states: Heat does not spontaneously flow from a colder body to a hotter.

The second law refers to a system of matter and radiation, initially with inhomogeneities in temperature, pressure, chemical potential, and other intensive properties, that are due to internal 'constraints', or impermeable rigid walls, within it, or to externally imposed forces. The law observes that, when the system is isolated from the outside world and from those forces, there is a definite thermodynamic quantity, its entropy, that increases as the constraints are removed, eventually reaching a maximum value at thermodynamic equilibrium, when the inhomogeneities practically vanish. For systems that are initially far from thermodynamic equilibrium, though several have been proposed, there is known no general physical principle that determines the rates of approach to thermodynamic equilibrium, and thermodynamics does not deal with such rates. The many versions of the second law all express the irreversibility of such approach to thermodynamic equilibrium.

In macroscopic thermodynamics, the second law is a basic observation applicable to any actual thermodynamic process; in statistical thermodynamics, the second law is postulated to be a consequence of molecular chaos.

Third Law
The third law of thermodynamics states: As the temperature of a system approaches absolute zero, all processes cease and the entropy of the system approaches a minimum value.

This law of thermodynamics is a statistical law of nature regarding entropy and the impossibility of reaching absolute zero of temperature. This law provides an absolute reference point for the determination of entropy. The entropy determined relative to this point is the absolute entropy. Alternate definitions include "the entropy of all systems and of all states of a system is smallest at absolute zero," or equivalently "it is impossible to reach the absolute zero of temperature by any finite number of processes".

Absolute zero, at which all activity would stop if it were possible to achieve, is −273.15 °C (degrees Celsius), or −459.67 °F (degrees Fahrenheit), or 0 K (kelvin), or 0° R (degrees Rankine).

you can't get something from nothing, it is always diminishing returns.. (you need more to make less)