Recent content by Kiwaho Kilowatthour

Oh, my my God, 500 km diameter circle can cover many cities inside! My Chinese client only tried me to consult on a 100 km^2 or so project, I not yet refuse, but probably will refuse soon, because of too low power density. Do you know Moore's law in IC industry? I don't believe the transistors...

Video: World's tallest building could be a 24/7 Australian solar chimney http://www.zdnet.com/article/video-worlds-tallest-building-could-be-a-24-7-australian-solar-chimney/ This project occupies 36 square km. Can Chinese project beat this by larger land usage? Wish so.

There are many reports in Chinese media, but less in English media. The Wikipedia does mention the solar chimney project in China. I will try to collect its photos in Chinese media later. Following Chinese news link for your reference: https://www.china5e.com/news/news-198134-1.html

The Wikipedia says it sells to europe at price tag $0.19 /kWh. Is this price competitive in europe local energy market?

Just wondering why the rich Arab country choose low efficiency mirror-molten-salt system, but not the high efficiency PV farm.

Let us check with the $9 billion dollar price tagged parabolic trough solar farm in Morocco: https://en.wikipedia.org/wiki/Ouarzazate_Solar_Power_Station Calculate the power density on land: Given official data -- the finished NOOR I stage 450 hectares on land characterized as 2635...

Therefore, the correct math equation for equivalence should be: 0.1 x (4047 x PD x 24 x 365 / 1000) - SystemCost = 653 - PlantingCost ? Oh, forgot, local government buys back PV energy not $0.1/kwh, but $0.2/kwh for temporary incentive.

The old fable: A rabbit and a turtle are racing on a racetrack, unfortunately the winner is the turtle, not the rabbit. Of course, the rabbit transient "power density" is far greater than the turtle. Why the rabbit is the loser? Perhaps this may be the same scenario: PV & solar chimney. PV is...

"Too good to be true, I was misguided by bad scientists & government agents, the gain even cannot cover loan interest", some guys complained.

If PV super good and I were president of china, I would pass some special laws: prohibiting PV export and making full domestic use; reducing crude oil import; switching crops plantation to PV power generation; importing all foods from other countries; ...

Therefore, if a farmer switches to PV power generation, a 1000 times profit than cash-crops can be gained? But curiously, why my neighboring farmers who installed PV many years ago, they are still unhappy with the supposed 1000 times profit? Even a few of guys dismantled and sold the panels...

It is said that the Madrid Spain solar chimney project occupies 110 acres land, but only output humble 50 kw: https://en.wikipedia.org/wiki/Solar_updraft_tower The fact: the average yearly solar power density of above powerplant = 0.11 W/m^2 Interestingly, there are many countries still...