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500,000 kWh isn't a lot of energy. But 500,000 kW produced cleanly and sustainably is a lot of power.
especially the netherlands
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Huh? Why do KWh go over the heads of so many people. A kilowatt-hour is a kilowatt generated for an hour. For instance, leaving a 1kw microwave on for an hour. That is 1kw/hr of electricity. 10c if you're using fossil fuels.
The key to this is... how long does it take to produce the 500,000kw/hrs? Obviously it's not producing a half million KW every hour or even every day, that'd be an insane amount of energy.
Is it per month? Per year? :)
Wouldn't that make a pretty foul mess though?
Put the bong down hippies....
That aside, this is one cool building!
Oh, and does the government of the country that produced this town have anything to do with constitutional libertarianism? Ron Paul?
But not without making the last couple dozen years absolutely meaningless.
The most optimistic number that I can find for solar energy density is 1.4 kW/m^2. So for 500 000 kWh
(That’s 500 Mega Watts) you would need an area of 357142.9 square meters.
Follow the more info link and we find that the panel is 315 meters long that leaves the height at > 1133 meters!
Maybe it’s just the camera angle but it doesn’t look that tall to me.
Imagine I said that my car can travel 10,000km. This doesn't tell us anything about the speed of the car until we know the time frame. 10,000km per year is fairly normal, 10,000km per day is quite fast. 500,000kWh per year is pretty good, 500,000kWh per century is not so good.
kWh are a unit that most people find rather confusing unit, much like Nm (Newton Metres) which are found my multiplying Newtons (a measure of force) by metres. I suspect this is because we are more used to measuring rates expressed as one unit divided by another, not just a bare unit or a unit multiplied by another. I hope I have cleared things up a little.
What all this means is that the panel doesn't have to be 1133 metres tall, it only needs to be 10 metres tall as long as it's out in the sun for 113 hours. Of course, in reality, it actually extracts less energy than the theoretical maximum and runs for more than 113 hours per year.
There are many more details at http://www.solar-ark.com/english/about/spec.html but to clarify some of the details mentioned in this blog, the outputs are 630kW and 530,000kWh per year. The actual usable power is 2x 300kW at 440V AC.
Although this is pretty cool, some of the best improvements to buildings can actually be made without solar panels at all. The building behind the solar array looks like it has been designed with passive solar collection in mind. Large glass windows to let in light and avoid needing artificial light, insulating glass to avoid needing costly heating and cooling and passive air-flows through the building to reduce the need for fans to move the air. It's amazing that for about 10% extra building cost, you can reduce the running costs of a building by 50% and save enormous amounts of energy at the same time.
Japan is really playing with creative ideas (to be precise:a big international corporation).
I'm sure the USA is going to see loads of similar new renewable miracles, after the election, though.