Does solar power have anything to do with physics?

Im doing a 3 minute speech tomorrow for physics and ive left it to the last minute and my question is "Is solar power really worth the money?"
I am planning to just go on about stuff like how long it will take for solar panels to pay themselves off with the money I save and stuff about returning to the grid…..
Do this really have anything to do with physics? PLEASE HELP

Is it possible to just tie an apartment solar power array to the electrical grid without a battery?

I would like to set up a solar power array in my apartment, but I’d like to just bypass a storage battery. If I set up a solar power array and hook it up to an inverter that will then tie into a power socket into the grid itself, do I need a battery? I just want to save money on my electricity bill and not have a standby in case of a power failure.

what save more electricity? Solar panels over half my roof, or trees covering half my roof?

I was wondering which would save more money in the electricity arena (I know tree’s can damage roofs).
I had heard that the shade provided by trees covering your house can help to greatly reduce summer electric bills.
I had read that Solar panels need to go onto the south side of the house, and that is where the tree’s shade the house. So which is more cost effective?
Also I know many of the benefit’s tree’s can provide, as well as the negatives associated with large tree’s near houses.

Where can I find Solar Power Information?

I’m looking for ways to save some money on my electrical and gas bill at home. I’ve heard that solar power is a great way to do that, but it looks pretty expensive to have it installed. I’m thinking that I may have to spend some time installing it myself. Where can I find Solar Power Information to install my own solar power equipment?

How does solar power genertors work?

Would like to know how solar power works. Also what does it takes to build one. How much is the cost. How much will it produce In savings from the electric companys. Is bigger always better. Can we sell this back to the electic company? Sure hope someone can help me. I believe this could make alot of money and also help us become more indepanted.

How can I make my own solar panel and produce solar power electricity and green energy?

Solar Power Electricity will save you thousands of dollars while keeping the planet safe and pollution free. By building you own solar panels you will not just generate solar power electricity that saves you money, but you will feel a total sense of satisfaction.

Where would I look to find grants for switching to solar power for a non-profit private college?

I am looking to see if there is grant money available to help fund switching over to solar power for a small college. The college is religiously affiliated and not for profit. Are there programs out there? If so, where would I look to get started?

What is the most cost-effective place to buy large solar electric panels?

We don’t have enough money right now to buy capacity for the whole house, which would probably require about 12 kilowatts. However, I would like to start buying panels toward building up toward that.

But I want to buy the most solar panel for the least price. I think that piecing a lot of very small panels together will be a very expensive way to do it.

Does anyone know the least expensive way to buy large solar electric panels?