Thanks for the input. ✌. Weird how the high dollar folks dismiss folks that actually know.
The whole gas grid debacle was and is political. The Texas RRC can and should mandate the winterization of the grid at least the critical gas clean up and separator plants, the pumps on the critical pipelines should be on uninterruptible dedicated powerlines or better yet tell the EPA to stuff it and go back to natural gas powered pumps so the gas in the line is powering the pump moving it down the line. The EPA mandated clear air act emissions limits so the cost to keep the gas powered pumps which are ship sized diesel engine sized was too high they were switched out to 15,000 kv train engine sized electric motors that now need the grid up to pump gas. Texas also needs to have more than 17 black start capable plants all of them are natural gas powered if the grid is down again Texas is screwed.
Texas used to keep hydro power plants as mandated black start capability since water is nearly always available behind the dams to start the grid with in an emergency. Any large generator can be a black start as long as it has a permanent magnet DC generator on site and fine speed control of the initial generator to get too and keep at synchronous speed to output that critical initial 60Hz AC sync waveform. Every other generators field coil will be synchronized to that initial one. Gas turbine don’t make for good black start their speed control is not near fine enough, large piston gas engines have the needed controls and are the first choice in black start. Hydro turbines also have the fine speed control they are a second option. Giant nuclear turbines are the least controllable they need to be synced by the megawatt level.field coil signal a terrible choice for black start and none in Texas have the ability to run without a preexisting grid signal in the tens of megawatt range at least.
Solar has inherent black start since inverters need no feed coil energy. Inverters can output a 60Hz AC sync waveform from a quartz oscillator but most utility grade inverters sync to the grid signal or if the grid is down a national time signal such as GPS. In stand alone mode my inverters use GPS atomic clock signals to put out a down to the part per million 60Hz signal. Once the grid come back up they sense the grid sync and shift the wave form to match it then trip the autobreaker to reconnect to the grid once in sync.