Sunlight at high noon directly overhead is close to 1000 watts per square meter. My neighbor's roof has panels about 2x4 ft (a bit less than a square meter) that are rated at 120 watts output each. Her rooftop array of just a dozen panels provided 100% of her consumption last year, per her net metering annual bill. It's a very modest sized house, One bedroom, one bath, about 1000 square feet, but it is also a very modest sized array.
Arggh. How did anyone ever think those graphics were a good idea. It seemed like the page loaded pretty fast, so when my eyes stopped watering I got some good dark glasses, and browsed around the site. Navigating was so flipping fast it was virtually instantaneous.
I clean up PCs for my clients pretty often - 1 or 2 malware infections per week. These are folks using PCs at work, doing their regular job, not downloading games, screen savers or much of anything at all. Because they hire me to keep their systems running they are (usually) fully patched, with working and up to date anti-malware. They do, in fact, mostly get infected by zero day exploits - from compromised web sites. And the compromised sites have been mostly places they go to in the normal course of doing their job. Order entry sites for parts distributors, a web site for booking conference rooms etc. Windows XP and 7 seem about equally vulnerable. When they ask how they could have avoided the problem I don't have any really good answer. Locking the PCs down so tight they can't install anything might help - but that's just not practical. I have them keep regular system image backups so it's easy to clean up...
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Sunlight at high noon directly overhead is close to 1000 watts per square meter. My neighbor's roof has panels about 2x4 ft (a bit less than a square meter) that are rated at 120 watts output each. Her rooftop array of just a dozen panels provided 100% of her consumption last year, per her net metering annual bill.
It's a very modest sized house, One bedroom, one bath, about 1000 square feet, but it is also a very modest sized array.
Arggh. How did anyone ever think those graphics were a good idea. It seemed like the page loaded pretty fast, so when my eyes stopped watering I got some good dark glasses, and browsed around the site. Navigating was so flipping fast it was virtually instantaneous.
I clean up PCs for my clients pretty often - 1 or 2 malware infections per week. These are folks using PCs at work, doing their regular job, not downloading games, screen savers or much of anything at all. Because they hire me to keep their systems running they are (usually) fully patched, with working and up to date anti-malware. ...
They do, in fact, mostly get infected by zero day exploits - from compromised web sites. And the compromised sites have been mostly places they go to in the normal course of doing their job. Order entry sites for parts distributors, a web site for booking conference rooms etc. Windows XP and 7 seem about equally vulnerable.
When they ask how they could have avoided the problem I don't have any really good answer. Locking the PCs down so tight they can't install anything might help - but that's just not practical.
I have them keep regular system image backups so it's easy to clean up