Here is the request from ERCOT, they were granted everything they asked for. It doesn't say what time they submitted the request but it was Sunday 2/14, and they got the response from the feds the same day at 8:51pm. Good turn around time.
Don't know what the fuss is. ERCOT asked for the ability to suspend emissions restrictions to operate plants in ways that produce more power but may not meet emissions certification, and the government granted that request.
https://www.energy.gov/sites/prod/files/...4.2021.pdf
'ERCOT has been notified by three major generation owners that their generating units
will, or are likely to, encounter operating restrictions during the next several days due to various
emissions and other limits established in federal permits. These units are described in Exhibit A
to this letter. These units are subject to a number of environmental limitations that may restrict
output. ERCOT has been informed that the operation of gas-fired generators during the next few
days could be impacted by permit restrictions on nitrogen oxide and carbon monoxide emissions,
that coal-fired generators would be impacted by permit restrictions on emissions of sulfur dioxide,
nitrogen oxide, mercury, and carbon monoxide, and that generation fueled by distillate fuel oil
would be subject to various restrictions on operating duration and/or emissions. ERCOT has also
been informed that generators of various fuel types may be subject to wastewater release limits.
ERCOT is also aware that many other generators not included on this list are subject to similar
federal permit limits.
Because the output from all of the generators subject to these restrictions would help
mitigate the impact of rotating outages on Texas consumers during this extreme cold weather
event, ERCOT seeks an immediate order from DOE authorizing the provision of additional energy
from all generating units subject to emissions or other permit limitations. For clarity, this request
is not limited to those generating units identified in Exhibit A. '