They are fessing up to the ERS issue, but no mention of the crankshaft problem, which remains rumor. And yes, Red Bull's cooling issues are their own problem, and not really unexpected either.
TJ13, who broke the crankshaft story, claim that because of it, Renault has limited the teams to 250km per engine, or about 56 laps at Jerez. No mention of rev limits.
"We know on our side we have one problem that we have clearly identified and we want to fix it," explained Taffin. "We could not fix it for this morning, so we decided to do as much as we could on our side to make sure that, for tomorrow, and especially for Red Bull and Toro Rosso, that we are sure we can take to the track at 9 a.m. We are confident that tomorrow morning we will have all three cars on track."
Taffin declined to elaborate on the specifics of the problem with the energy stores, but suggested it was the way that the batteries were interacting with the rest of the power unit that was causing troubles.
"You have to bear in mind that a power unit is made up of a lot of sub components, and it is not a matter of one of them not working," he said. "It is clearly a problem of integration of all these systems.
"In particular, for this problem, we had to fix the problem through the energy store, but I am not going to go into detail due to the nature of the architecture of our system. We have clearly identified something that we would have to change.
"We have the parts, we have the people here, we have the means to do this, and we were prepared to do this. We did not want to do this when we came here, but that is what has happened and we are doing it."
Taffin added that the smoking issues spotted at Red Bull did not relate to the energy store problems.