Life-cycle Greenhouse-gas Emissions of Energy Sources
A literature review of numerous energy sources CO2 emissions by the IPCC in 2011, found that, the CO2 emission value, that fell within the 50th percentile of all total life cycle emissions studies conducted, was as follows.
| Technology | Description | 50th percentile (g CO2/kWhe) |
|---|---|---|
| Hydroelectric | reservoir | 4 |
| Wind | onshore | 12 |
| Nuclear | various generation II reactor types | 16 |
| Biomass | various | 18 |
| Solar thermal | parabolic trough | 22 |
| Geothermal | hot dry rock | 45 |
| Solar PV | Polycrystaline silicon | 46 |
| Natural gas | various combined cycle turbines without scrubbing | 469 |
| Coal | various generator types without scrubbing | 1001 |
Read more about this topic: Greenhouse Gas
Famous quotes containing the words energy and/or sources:
“Long before Einstein told us that matter is energy, Machiavelli and Hobbes and other modern political philosophers defined man as a lump of matter whose most politically relevant attribute is a form of energy called “self-interestedness.” This was not a portrait of man “warts and all.” It was all wart.”
—George F. Will (b. 1941)
“My profession brought me in contact with various minds. Earnest, serious discussion on the condition of woman enlivened my business room; failures of banks, no dividends from railroads, defalcations of all kinds, public and private, widows and orphans and unmarried women beggared by the dishonesty, or the mismanagement of men, were fruitful sources of conversation; confidence in man as a protector was evidently losing ground, and women were beginning to see that they must protect themselves.”
—Harriot K. Hunt (1805–1875)