PV Gap

Peter Said:

I'm considering getting the type of solar system on my roof which feeds excess energy back into the grid?

We Answered:

It's a good idea. The main problem is the cost. Figuring the cost and payback is complex and is completely dependent on exactly where you live.

Whether or not it's "worth it" depends on where you live and what you're trying to accomplish.

If you're just trying to save money, two things are the most important. How much sun you get and how much (if anything) your State will pay you for doing this. There's also some tax deductions possible. As I say, it's complex.

If you're concerned about the environment, then you still want to know how much it will cost, but you'll be less concerned about payback from the cost of putting the system in. It may take a long time for it to pay for itself, though.

Your best bet is to talk to a local solar energy company. They'll show you how the cost, the State payment, if any, and the payback will work. No one can do that unless they know where you live, and other information about you specifically.

Chad Said:

Is it practical to use solar panels and batteries to run an HHO gas powered car?

We Answered:

Then you wasted your money. HHO is just a scam that does nothing to help your fuel economy.

Deborah Said:

Will EMP destroy PV panels?

We Answered:

yes, no question.

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Jesus Said:

Could tractor trailer trucks help solve our energy storage problems?

We Answered:

I missed something here.  What's the point of putting batteries in trailers?  A highly streamlined semi truck would consume about 1.5 kWh/mile if it ran on electricity; you could load up a trailer with batteries for the sake of the truck, but you wouldn't get very far and you'd sacrifice cargo.

It makes more sense to put the trucks on rails (which eliminates the problem of pavement damage) and provide electricity via overhead wires.  See the link.