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This is a little more complicated than it looks, because there are many technologies, and many levels of efficiency.

Carbon footprints are rated according to the total greenhouse gas cost during the lifetime of the object. Different greenhouse gasses have different effects, so the solar footprint has to be rated on a basis that is uniform. The basis is carbon dioxide, or CO2. Also, the benefit has to be standardized, and it is easy to understand power delivery in terms of kilowatt hours. Carbon footprints can be conveniently rated in grams CO2 equivalentper kilowatt hour (g CO2e/kWh).

Most efficient, and the lowest carbon footprint of just about any technology, is solar thermal. It seems to have a carbon footprint of 5 to 10 g CO2e/kWh.

Newer solar photovoltaic (PV) technologies are rated between 23.6 and about 40 g CO2e/kWh.

Concentrated solar thermal, which is especially interesting because the energy is stored as heat to be converted into hot water later, is rated as about 40 to 45 g CO2e/kWh.

Old PVs are rated at about 105 g CO2e/kWh.

By way of comparison, hydro and wind are rated at about 12 to 20 g CO2e/kWh. Nuclear is rated at about 65 to 180 g CO2e/kWh. Combined cycle natural gas is 455 g

CO2e/kWh. Oil is about 900 g CO2e/kWh, and coal 1000 g CO2e/kWh.

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โˆ™ 2010-03-21 20:37:39
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Q: What is the carbon footprint of solar power?
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Is solar power carbon neutral?

No, it is not, not at first. But the first three months of use usually compensates for for the production emissions. In calculating the carbon footprint, the carbon costs of manufacture, transportation, and installation all have to be included, as do the costs of uninstallation and disposal at the end of the life cycle of the apparatus. The carbon footprint of solar power is small. Solar thermal power, such as is used in solar hot water, can have a smaller carbon footprint than wind or hydro, because the manufacturing cost (in terms of carbon emissions) of solar thermal can be kept to a minimum. Solar photovoltaics (PVs) have a larger carbon footprint than wind or hydro, though modern PVs have a carbon footprint that is not much bigger, perhaps twice as big. This is because a lot of energy is used in manufacture. Older PVs had a much larger carbon footprint because they were less efficient (produced less power) and manufacture required gasses like nitrogen trifluoride (NFl3), which is about 17000 times as powerful as CO2 as a greenhouse gas. The NFl3 was trapped, but tiny amounts of it escaped, and these had to be accounted for. The operation of solar power can be carbon neutral, but this does not consider the total carbon footprint as it should be - "cradle to grave," as they say.


How do solar panels impact on your carbon footprint?

Your carbon footprint measures the amount of carbon dioxide that you and your lifestyle are responsible for. Riding a bicycle keeps your carbon footprint low. Driving a big car raises your carbon footprint. Using solar panels means that some or all of your electricity is being renewably generated, that is, without greenhouse gas emissions. This is good for your carbon footprint and good for the world!


What are the advantages of using Solar Power?

we reduce our carbon footprint and we don't use fossil fuels to create the energy instead


What is a carbon footprint rap?

carbon footprint


What are the advantages of solar power installations?

There are many advantages to using solar energy instead of electrical energy. Some include saving money on your electric bill, increasing your homes value, and decreasing your carbon footprint.


Solar Hybrid Car Harness the Power of the Sun?

There is no better way to reduce the carbon footprint of your vehicle than with a solar hybrid car. These vehicles harness the power of the sun to recharge the on-board batteries. This also lowers the carbon footprint of the vehicle. Installing one of these supplemental charging systems allow the vehicle to operate in electric mode for extended periods of time which increases fuel mileage and saves money on gas.


What is the advantage of having a solar roof?

The advantage of having a solar roof is to reduce your carbon footprint on the environment by reducing your dependence on power plants. Another advantage is some governments actually offer a financial incentive to people who have invested in a solar panels on their roof.


What is the definition of the carbon footprint?

Carbon Footprint - A measure of the amount of carbon dioxide emitted through fossil fuel combustion. A carbon footprint is often expressed as tons of carbon emitted on an annual basis. See Environmental Footprint.


A firm's carbon footprint is?

A firm's carbon footprint is an indication of the firm's environmental impact. The carbon footprint measures the firm's impact on global warming.


What advantage does solar power have over biomass?

Solar power produces no carbon dioxide


Does geothermal power leave a carbo footprint?

A small one yes. To harvest the geothermal energy you need to drill, build plant and infrastructure. This drilling, and construction has a carbon footprint (it needs energy to do). However the geothermal energy harvested has no carbon footprint.


Where can one find a carbon footprint calculator?

There are many places to find a carbon footprint calculator. The Environmental Protection Agency offers a carbon footprint calculator on their website.


What is the carbon footprint of a rocket?

The carbon footprint of a rocket is the amount of carbon emission it leaves behind. It is the impact it has on the Earth.


What s carbon footprint?

Carbon footprint is the amount of carbon dioxide of anthropogenic activity released in the atmosphere.


Does solar energy have Carbon Oxide in it?

No, Solar Power is not a Chemical Compound.


Do cars produce a carbon footprint?

Yes. Your carbon footprint is the measure of how much carbon dioxide equivalent you, or any of your activities produce. A car burns petrol (gasoline) so its use has a carbon footprint.


What is part of a person's carbon footprint?

The amount of carbon dioxide emissions from transport each day is part of a person's carbon footprint.


What is a footprint calculator?

Footprint calculator can be carbon footprint calculator or ecological footprint calculator, which can give data about your impact on environment.


How does carbon footprint affect the environment?

Carbon footprint, as defined by Wikipedia is "is "the total set of greenhouse gas (GHG) emissions caused by an organization, event or product" [1] or the amount of carbon dioxide emitted. Less carbon footprint will affect the earth because the earth will be cooler if there is less carbon footprint.


Why do all products have a carbon footprint?

All products have carbon footprint because they all require something to make them and to make that you need to start out with elements and that takes away from the earth so that is your carbon footprint.


How many syllables does carbon footprint have?

The phrase 'carbon footprint' has four syllables. (car-bon foot-print)


What is the carbon footprint of a product?

The carbon footprint of a product is the amount of affect its production has on global warming. The production, manufacture, packing, cleaning, transport and presentation of the product all has an impact on global warming. This is its carbon footprint.


How much carbon footprint does a bus produce?

The amount of carbon footprint that a bus produces depends on the distance the bus travels. A bus that travels 100 miles will only produce a carbon footprint of 0.02 metric tons. A taxi that travels the same distance will produce a carbon footprint of 0.03 metric tons.


Do electric cars give out carbon dioxide?

It depends on the source of the electricity used to power them. Power plants can generate carbon dioxide a lot (coal and oil fired) or a little (watering nuclear), Although the car does not itself generate carbon dioxide the source of its power does and so the car is responsible for the carbon dioxide footprint. In areas serviced by coal fired power plants the carbon footprint of an electric car may be very similar to that of a hybrid or efficient conventional fuel car.


What are the Methods evolved to measure and check environmental degradation?

carbon credit, carbon footprint, ecological footprint and ecological shadow

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