It is not just the clock,but the circuits to handle the 110-220v high amperage to generate the sine wave, extra circuits to handle the switching from solar+grid to solar+battery, etc.
It is about 4x more expensive for battery+solar+grid than solar+grid, and 3x times a battery+solar (off-grid) converter.
It would have added about 5K to my existing 14 system to do the switching from grid to battery and then there is the cost of the battery.
One thing people probably don't know: a tied solar panel system inverter has no internal 60Hz cycle clock. It gets it's "heartbeat" off the grid for obvious reasons: you don't want it to be producing out of sync from the power coming from the grid. Makes the unit cheaper of course.
It also means if I lose power from the grid, I stop producing power altogether. That means I don't need expensive To get one that is off the grid an inverter must now include a 60Hz cycle generator.
I use slightly more than the average household because of the high summer temps here. 1100 average.
The problem is that to go "off the grid" I would need at least 40 panels@ 250w a panel. That takes into account losses going from DC to AC or battery charging inefficiency, or around 20% and 20% for the 20% degradation over the life of the panel.
The max my house will support using available facing rooftop is around 25. Not even close.
Part of that is because the builders tried to minimize south facing surfaces, since in 1968 they were not considering solar power.
Most inverters require a range of panels to work, like 4 to 10 per string.
Also, each time you added a panel, you would need to redo the building permit. Unless you live in the boondocks, but any where else it would be difficult.
It has been my experience that it is 10:1, but I have a lot of old growth trees in my neighborhood. In the summer this is not an issue, but in the winter the neighbor's trees kill a lot of my available light even on the second story of the house.
There are lots of hybrid SUVs, from small Toyota Highlanders to the enormous Tahoe/Yukon. Lexus and Mercedes if you are into conspicuous consumption. Honda has the Odyssey. Chrysler will have a hybrid Minivan coming out next year.
Now is the time to buy a EV/Hybrid, while the market is soft.
In rural areas, the house might be a significant distance from the road. I know the family farmhouse is at least 1/4 mile from the road, which means packages must be picked up at the post office, or at the UPS store in town.
Sending a drone to get even close to the house would be easy, and unlike in a urban/sub-urban area there is a lot of area that is not casually visible from the road.
I can see a marker of some sort to give the drone an idea of where you want it to drop things off. A simple post with a simple pattern would probably enough for the drone to figure it out. Heck, a series of reflective markers could give it a suggested flight path to make sure it does not piss off the donkey, wake up the baby, or get too close to your cherry tree and knock off flowers with the backwash.
And most game files are packed compressed binary files, PAK. There is a lot of CPU work to be done once it is in memory, they have traded CPU cycles for disk space.
I recall at least one game (A Total War title?) that offered an option to unpack the PAK files so that access was faster, but it took up a lot of disk space.
Slashdot Mirror
While you still know everything!
I live in California, if I stuck to Conservative only friends I would have....
oh wait.
Hats or DVDs?
Reporter: Is that your Crash Helmet?
Jose Jiménez: Oh.... I hope not!
It is not just the clock,but the circuits to handle the 110-220v high amperage to generate the sine wave, extra circuits to handle the switching from solar+grid to solar+battery, etc.
It is about 4x more expensive for battery+solar+grid than solar+grid, and 3x times a battery+solar (off-grid) converter.
It would have added about 5K to my existing 14 system to do the switching from grid to battery and then there is the cost of the battery.
The number quoted has no data to back it up, it appears to be thin air.
Based on this paper, current techniques are just not economically realistic
http://www.google.com/url?sa=t...
One thing people probably don't know: a tied solar panel system inverter has no internal 60Hz cycle clock.
It gets it's "heartbeat" off the grid for obvious reasons: you don't want it to be producing out of sync from the power coming from the grid. Makes the unit cheaper of course.
It also means if I lose power from the grid, I stop producing power altogether. That means I don't need expensive
To get one that is off the grid an inverter must now include a 60Hz cycle generator.
In my case it is 3.2c vrs 19.2
But here is the thing: You push 10kWh on the grid during the day, you can draw that 10kWh for a net zero cost, and 32c "profit".
In essence, I don't need a battery, I get one for free and it is called "the grid"
At IBM, we call that the Repeatable Model.
I use slightly more than the average household because of the high summer temps here. 1100 average.
The problem is that to go "off the grid" I would need at least 40 panels@ 250w a panel. That takes into account losses going from DC to AC or battery charging inefficiency, or around 20% and 20% for the 20% degradation over the life of the panel.
The max my house will support using available facing rooftop is around 25. Not even close.
Part of that is because the builders tried to minimize south facing surfaces, since in 1968 they were not considering solar power.
That would be difficult.
Most inverters require a range of panels to work, like 4 to 10 per string.
Also, each time you added a panel, you would need to redo the building permit. Unless you live in the boondocks, but any where else it would be difficult.
It has been my experience that it is 10:1, but I have a lot of old growth trees in my neighborhood. In the summer this is not an issue, but in the winter the neighbor's trees kill a lot of my available light even on the second story of the house.
I live in Sacramento. Sunny and 38.5 parallel.
I would need a huge system to provide power in the winter, and it would provide 10 to 12X too much in Summer.
I have a 16 panel system now, I would need to cover the whole house in panels and face them the right way to get that kind of power in winter.
I let him go. - John Matrix
No we wouldn't, we only produce R6000 and Z-mainframe now.
Everything x86 went to Lenovo.
Err.. whut?
There are lots of hybrid SUVs, from small Toyota Highlanders to the enormous Tahoe/Yukon. Lexus and Mercedes if you are into conspicuous consumption.
Honda has the Odyssey.
Chrysler will have a hybrid Minivan coming out next year.
Now is the time to buy a EV/Hybrid, while the market is soft.
I think you are right there.
In rural areas, the house might be a significant distance from the road. I know the family farmhouse is at least 1/4 mile from the road, which means packages must be picked up at the post office, or at the UPS store in town.
Sending a drone to get even close to the house would be easy, and unlike in a urban/sub-urban area there is a lot of area that is not casually visible from the road.
I can see a marker of some sort to give the drone an idea of where you want it to drop things off. A simple post with a simple pattern would probably enough for the drone to figure it out.
Heck, a series of reflective markers could give it a suggested flight path to make sure it does not piss off the donkey, wake up the baby, or get too close to your cherry tree and knock off flowers with the backwash.
That is why it is equipped with a small catapult.
A PAK file can be compressed. It should be compressed.
What would be the advantage if it was not?
http://www.file-extensions.org...
And most game files are packed compressed binary files, PAK. There is a lot of CPU work to be done once it is in memory, they have traded CPU cycles for disk space.
I recall at least one game (A Total War title?) that offered an option to unpack the PAK files so that access was faster, but it took up a lot of disk space.
It is the continuation of debate by other means.
Apologies to Carl von Clausewitz.
Yeah, he probably made more than $200 Million on Jar Jar Binks licensing.
Silicon Valley *used* to be the most fertile soil in the US, but it has been paved over...
and that was true before Monsanto was in the GMO business.
Problem is, your brain does not always see what your eyes are looking at. It edits the stream.
Don't believe me?
http://www.londoncyclist.co.uk...
THAT is why we need a system that is based on cameras, because our eyes are not designed for the job.
Yeah, don't give people money, they will just misuse it...
OFFS!