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Comment A stupid idea. (Score 2) 78

Correct: it's a mostly useless idea.

The problem really is in the laws of thermodynamics.

The total energy radiated is indeed equal to the sunlight energy (although the power density is less by a factor of 4: the Earth absorbs sunlight on an area pi r^2, but radiates heat over an area 4 pi r^2)-- but usable energy is produced not by a heat source, but by the transfer of energy from a heat source to a heat sink-- the Carnot efficiency. The difficulty is that in intercepting the outgoing radiation, you necessarily put a thermal resistor into the circuit. Basically, they end up converting at efficiency characterized by the difference in temperatures of daytime and nighttime. The efficiency is terrible.

Comment It's complicated [Re:Macroeconomics 101] (Score 1) 676

Very good, but our situation is a little more complex.

Exactly. When you get down into the details (just like a relationship), "it's complicated" is the accurate description of how the economy works.

But the point remains: the simplistic statement by anonymous coward, "When the federal reserve increases the supply of money, inflation is the net result really is not accurate. It's not that simple. Even in the simple case, it's not that simple.

Comment Trade correction to velocity of money (Score 1) 676

Yes, valid point. When money, and goods, move in and out of the economy via trade with other nations, the equation of the money supply has to take account of that as well. The correction can go either way-- if other nations (or individuals in other nations) are stockpiling US dollars, that is inherently deflationary

The principle is essentially the same, though.

Comment Macroeconomics 101 (Score 3, Informative) 676

...When the federal reserve increases the supply of money, inflation is the net result. The net result of the fed increasing the money supply and inflation, is a tax on everyone who currently owns US dollars, as each of their dollars now purchases fewer real goods

Not exactly. The (money supply) times (velocity of money) equals (cost of goods), times (production rate).

So, if the amount of money increases but velocity of money and the production rate (amount of goods produced per unit time) stay the same, the result is inflation.

However, conversely, if the production rate increases but the money supply and velocity of money does not, then the cost of goods decreases-- that's deflation. (Note that this is production rate, not productivity: production rate equals productivity time population times employment fraction.)

A steady economy is one in which the money supply increases exactly at a rate equal to the production rate-- in this case, the cost of goods stays constant (assuming that the velocity of money doesn't change).

Comment Re:When is a watt not a watt (Score 1) 196

The first part of your post is right but pretty meaningless.

I will say the same for you,

If you run a solar plant and feed it into my grid I don't care how much "rated power" you have installed.I care about the load curve your plant produces over the course of the day.

Exactly.

Rated power is important, since it tells you how much a panel can produce. But don't confuse that with the amount of power the panels do produce.

Comment When is a watt not a watt (Score 1) 196

A watt of solar power is a watt of solar power.

No.

Solar panels are rated for capacity in "peak watts". That means: the solar panel will produce one watt under an illumination of 1 kW/m2. 1 kW per square meter is, roughly, the intensity at noon on a cloud free day.

If the illumination is not 1 kW/m2: it will not produce one watt.

It means nothing in regard to day time or cloudness.

If it is cloudy, a 1-kW solar panel will not produce 1 kW of electrical output. If it is after sunset, a 1-kW solar panel will not produce 1 kW. Time of day and cloudiness determine the power output.

E.g. no one prevents you to build your 1kw plant to point to 15 O'Clock and have the right angle to produce '100%' of its rated yield in September and April.

That is correct. You can chose which way to tilt your panel, which will set what time you produce peak power. It's not always best to tilt at the angle to maximize integrated power.

Noon is only relevant if you are so stupid to point your plant right now to due south at 12:00 in July. (And the energy difference of a proper angled plant for 15:00 in September or 12:00 in June is less than a percent)

For a tracking collector, that's probably about right. For a fixed-tilt collector, the loss is a bit more than that. The output goes as cosine of the angle, times the air mass factor (which to first order we can neglect). Since the sun moves 15 per hour, going from noon to 15:00 you lose by cosine of 45, 0.707 (about 30%).

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