What are the drawbacks to using wind turbines or solar panels for providing all power to a home?

A. The wind and sun are not constant, so there would be times when no electricity would be generated.
B. The wind and sun are constant, so there would be plenty of electricity for the home.
C. Wind and solar power are inefficient and too expensive to use and maintain.
D. Wind and solar power are efficient, but they are not able to produce enough electricity for a single home.

Solar Power Inverter


Why won’t my 150 watt power inverter work with Harbor Freight solar panel control box?

 

 

Solar panel is too small; it will not put out enough DC voltage to power the DC to AC inverter. You need to connect the Solar panel to a battery then battery to inverter.

Solar Panel Inverter Comparison

Solar Hot Water

solar hot water
Is a solar hot water heater worth the upfront cost? What is the average time to pay it off?

Your cost return is going to depend on local sun conditions, local energy costs, initial system cost and cost of maintenance. I have generally heard that it may be as quick as 8 years or as much as 20 years or longer to pay itself off. Of course the higher energy costs rise the sooner the payback time would be.

The department of energy site listed below discusses the costs and payback terms. One thing they point out is that if the solar system heats provides less than 40% of the overall heating of your house then it’s probably not going to be cost effective.

Checkout the other site listed below for a comparison of life-cycle costs for different water heater options, including solar with electric backup heat. According to this site, indirect gas hot water heaters are the lowest cost option over a 13 year period and are less than half the cost of the solar with electric backup option.

Renewable Energy – Solar Thermal (Hot Water)

Solar Powered Generator

solar powered generator
Are the sun’s rays more powerful at higher altitudes?And would a solar power Generator produce more power?

If you live in a high elevation, will the sun be more intense because of thinner air? And would a solar power generator produce more power because of this?

Yes, because at a high altitude, the sunlight would pass through a thinner atmosphere . This means that the atmosphere would scattered less energy away.

My Solar Backup Solar Power generator

Solar Power Grid

solar power grid
solar powered grid tie inverter?

If I buy a grid tie inverter and solar panel that puts out 200watts and it costs me about 400$ how long would it take to pay for itself?

You forgot your electric rate. Assuming 10 cents/ KWh:

200watts
8hrs/day
1.6Kwh/day
0.1$/Kwh
0.16$/Day produced
400$ purchase price
2500Days payoff

Electra Green solar power grid Alternative Energy electric motorcycle on firstontop.com

Photovoltaic Solar Panels

photovoltaic solar panels
Are solar Photovoltaic panels expensive to purchase & install? Can I self install or is this a pro job?

It is expensive if you just look at the price and say Wow! that is a lot of money. But when you compare it to renting electricity for the next 30 years and total the cost.. Well you end up making money.

You should find the package system you want which comes with instructions on how to install. Install the parts of the system you can and hire an electrician to run the wires and make the connections. You could save a great deal of money doing it that way.

Mounting the solar modules on the roof is by far the hardest part of the whole install. The inverter and charge controllers all have a Pos and a Neg markings and so does the solar modules making the wireing hookups easy. However to hook up to the utility you have to have a building inspector sign the paper showing he has inspected it. Catch 22 is you have to have an electrician sign the permit or the building inspector will not approve the system. If you install it wrong your home could be flaged as unsafe and you could end up being put out of your home till the wireing is brought up to code.

The easy way and the best way, Is to let the Solar electric dealer take care of it for you. The dealer is the one who has been trained and knows the electric building codes for solar electric your area.

Solar energy / Solar photovoltaics / Photovoltaic effect (3D animation)

Solar Power Heating

solar power heating
Is a heat lamp considered as solar power?

I’m using a heat lamp for my project on solar energy. Is it considered as solar power?

Solar power uses only heat from the sun. If the heat lamp needs to be in the sun, or has a solar panel battery pack which you put in the sun, then it is solar powered. However if, like most heat lamps, you just plug it into a electric socket, then it’s running on mains electricity not solar energy.

Think you need to do a bit more thinking on this one.

Solar panels. Solartwin pool solar heating case study

Solar Energy System

solar energy system
Do you think all new buildings should use solar energy as much as they can?

Solar hot water systems are good, where I used to live if the water got cold we had a switch allowing to use electricity. I think all houses should have some sort of solar system and that energy gathered and not used during the day should be fed back into the national grid with the house being credited with that power. I think this happens in Queensland?

Yes I think that’s an excellent idea

How to Install Solar Panels : Tools for Installing Solar Energy System

How To Convert DC Power To Solar Power?

I have a sensor outside that we use 6 AA batteries to run (9 volts total). anyone know how I can convert it to solar power, and charge a battery to keep it going 24-7. I know little about electronics, but not when it comes to solar, and trying to charge, and use power at same time.
THIS UNIT NEEDS TO SAY ON 24/7 !!!!!!!!!! (even at night)

Solar System Power

solar system power
Solar power coming to Redskins home field
The Washington Redskins are going solar. The team announced Wednesday that solar power panels will be in place at FedEx Field and in the stadium’s parking lot this September. The system will provide a portion of the stadium’s electricity on game days and all of its electricity on non-game days.
Space Solar Power Systems (SSPS)