Yes. But there was some agreement with Daesh that the electricity will not be disrupted, nor for the loyalists, nor for the rebel, nor for the Daesh regions, everybody pays for electricity, of course, and nobody bombs the powerplant.
And there was some problem with this, because the US has attacked the powerplant (attacking Daesh, of course), which has led to power disruption in Aleppo as a whole. I'm not aware about the actual state of this - how serious the damage was, and if electricity has been restored.
By the way, it seems that the claims of taking the powerplant have been premature, actually it is claimed that there are fights around it.
(On the other hand, even more progress from Latakia, with two hills taken, one on the way toward the Turkish border North of the M4 highway, one South-East of Kinsabba.)
Yes. This is what http://www.moonofalabama.org/2016/02/the-race-to-raqqa-a-syrian-campaign-plan.html names the "race to Raqqa". The US thought that they could use the Kurds, but the Kurds have no interest in Raqqa, its Arabic, but are much more interested in the Al Bab-Manbij region which is Kurdish. And the Russians like this very much - they support the Kurds in this region as much as they can, frustrating Erdogan. And they have started their own expedition toward Raqqa.
The Kurds would be much closer, but are not interested. The Turks and the Saudis are far away.
Personally I don't believe that much that this is a race to Raqqa. I think the prior intention of the offensive below is simply to cut the Daesh near the Tabka airport into parts. This would, anyway, close the way for Erdogan to Raqqa through Daesh territory. They would need an open aggression against Syria or the Kurds after this. The way from the South for the Saudis would be even more difficult, given Deir Ezzor being on the way.
How about using credible sources? You seem to like that guy who runs around dressed up like Hitler. You keep citing him as a reference.