No. The 130 MW remaining capacity was the amount available "in SCED within 5 minutes", which in super simplified terms means "the amount of energy available quickly and economically".
The grid actually had ~4 GW spare capacity (according to the graph) if it was needed, but it wasn't part of SCED.
The grid actually had ~4 GW spare capacity (according to the graph) if it was needed, but it wasn't part of SCED.