3 ms·
It is worth noting that the highest efficiency gas turbines are combined cycle. That is, the waste heat is captured almost in entirety to make steam to run othe
by auspiv 3y ago
It is worth noting that the highest efficiency gas turbines are combined cycle. That is, the waste heat is captured almost in entirety to make steam to run other turbines (potentially part of the same generating unit) to increase efficiency.
From a grid standpoint, peaker gas turbines can go from 0 to 100% in a few minutes. Combined cycle turbines can take a couple hours. They are precision machines and need to warm up to operating temperature much slower.
- Animats 3y agoGeneral Electric claims 5 minute startup time for their combined-cycle 50-megawatt turbine.[1] They've shipped 1200 of those. [1] https://www.ge.com/gas-power/products/gas-turbines/lm6000 https://www.ge.com/gas-power/products/gas-turbines/lm6000
- imtringued 3y agoYou didn't read the combined cycle section which claims a cold iron start takes 30 min for combined cycle. That is plenty fast though.
- Animats 3y agoAh, right. Have to click on the combined cycle options to see that.