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Resource efficiency with useful heat or electricity: Difference between revisions
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Resource efficiency with useful heat or electricity (view source)
Revision as of 15:26, 17 September 2022
, 15:26, 17 September 2022→All types of power sources
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| Gas/liquid fuel in gas combined heat and power plants with district heating || 60 || 40 || 280 || 70 | | Gas/liquid fuel in gas combined heat and power plants with district heating || 60 || 40 || 280 || 70 | ||
|} | |} | ||
===Relative energy demand for heating with combinations of electricity production and electric heating/heat pumps=== | |||
{| class="wikitable" | |||
|+ | |||
!Examples of power source | |||
!'''Electric Efficiency''' | |||
| colspan="8" |'''System efficiency during heating''' | |||
|- | |||
! rowspan="1" |Solar collector | |||
!0% | |||
| colspan="8" |200-143% | |||
|- | |||
! rowspan="2" |Combustion for heating | |||
(oil, gas, firewood) | |||
!0% | |||
| colspan="8" |111% | |||
|- | |||
! | |||
!Electric heat | |||
!2 | |||
!3 | |||
!4 | |||
!5 | |||
!6 | |||
!7 | |||
!<=COP | |||
|- | |||
!Solar cell | |||
!'''15%''' | |||
| <u>667%<u> | |||
| <u>333%<u> | |||
| <u>222%<u> | |||
| <u>167%<u> | |||
| <u>133%<u> | |||
| <u>111%<u> | |||
| '''95%''' | |||
| | |||
|- | |||
!Nuclear power, Old coal power, oil power, good petrol engine | |||
!'''30%''' | |||
| <u>333%<u> | |||
| <u>167%<u> | |||
| <u>111%<u> | |||
| '''83%''' | |||
| 67% | |||
| 56% | |||
| 48% | |||
| | |||
|- | |||
!Efficient coal power, modern diesel engine | |||
!'''40%''' | |||
| <u>250%<u> | |||
| <u>125%<u> | |||
| '''83%''' | |||
| 63% | |||
| 50% | |||
| 42% | |||
| 36% | |||
| | |||
|- | |||
!Very large diesel engines | |||
!'''50%''' | |||
| <u>200%<u> | |||
| '''100%''' | |||
| 67% | |||
| 50% | |||
| 40% | |||
| 33% | |||
| 29% | |||
| | |||
|- | |||
!Efficient gas combined cycle power plants | |||
!'''60%''' | |||
| <u>167%<u> | |||
| 83% | |||
| 56% | |||
| 42% | |||
| 33% | |||
| 28% | |||
| 24% | |||
| | |||
|- | |||
! | |||
!'''70%''' | |||
| <u>143%<u> | |||
| 71% | |||
| 48% | |||
| 36% | |||
| 29% | |||
| 24% | |||
| 20% | |||
| | |||
|} | |||
<u>Underlined</u> system efficiencies are combinations with a lower efficiency than combustion or optimal heat capture for heating (eg oil boiler, wood burning). | |||
'''Bold''' is the dividing line where the combination gives a higher efficiency than the theoretical maximum for combustion alone or heat capture for heating (100%). | |||
===Electric car compared to ICE petrol car === | ===Electric car compared to ICE petrol car === | ||