Ee w04.1 m_ 2. electricity generation _ part 2 (simulation)
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This document discusses the differences between power and energy. It provides examples of how power is measured in megawatts (MW) and energy is measured in megawatt hours (MWh). It also uses these concepts to solve sample problems, such as calculating the potential annual energy production of a 500MW nuclear power plant and estimating the capacity factor of solar power in the European Union.
Ee w04.1 m_ 2. electricity generation _ part 2 (simulation)
- 1. Terminology What is the difference between power and energy?
- 2. Speed & Distance Speed (KM/Hr) Hours (Hr) Distance (KM) 12 KM/Hr 1 12 KM 12 KM/Hr 2 24 KM Power & Energy Power (MW) Hours (Hr) Energy (MWh) 200MW 1 200MWh 200MW 2 400MWh Speed & Distance KM/hr Hr KM Power & Energy MWh/Hr Hr MWh =MW Terminology
- 4. •Very Low •Nuclear •Coal •Gas •Oil •Shortage •Exceptionally high •Very high•Moderate•Low •0 •20 •30 •50 •Load curve •0 0 •0 5 •0 7 •1 0 •1 3 •1 5 •1 8 •2 4 •Very Low •Low •Moderate •Very high •Exceptionally high •Hours •4 •P
- 5. •Nuclear •Coal •Gas •Oil •Shortage •Exceptionally high •Very high•Moderate•Low •Load curve •0 0 •0 5 •0 7 •1 0 •1 3 •1 5 •1 8 •2 4 •Very Low •Low •Moderate •Very high •Exceptionally high •Very Low •P •0 •20 •30 •50 •P=0 •P=20 •P=30 •P=50 •P=CAP •Hours •5
- 7. Speed & Distance Speed (KM/Hr) Hours (Hr) Distance (KM) 12 KM/Hr 1 12 KM 12 KM/Hr 2 24 KM Power & Energy Power (MW) Hours (Hr) Energy (MWh) 200MW 1 200MWh 200MW 2 400MWh Speed & Distance KM/hr Hr KM Power & Energy MWh/Hr Hr MWh =MW Terminology
- 9. •5 €cent/KWh= 0.05€/ KWh= 50€/ MWh
- 10. • I have a nuclear with a capacity of 500MW (power). • How much energy can this power plant produce in a year? • How many hours are in a year? • 24*365= 8760 – (Q&D, +/- 10.000 minus 12%) – ≈500MW * 10.000 hours – ≈ 5.000.000MWh – ≈ 5.000GWh – ≈ 5 TWh – =4.4 TWh
- 11. • In the EU in 2012 there was a capacity of 120GW (power) in solar. This produced 100TWh in 2012. • What is approximately the capacity factor of EU solar? • How many hours are in a year? – 10.000 minus 12% • If it ran at full capacity (100% c.p.) it would have produced about 120 * 10.000GW – ≈1.200.000 GW – ≈1.200 TW – ≈1.000 TW (minus the 12%) • But it produced 10 times less… • Thus c.p. is ≈ 10%