I just want to light the point 1 suggested by reinisp 29 days ago.
We have to keep in mind that the number of SC mined is pretty much the same between two close dates because the difficulty grows up according to the hashrate even if the hashrate explode.
Before A3 the total hash rate was about 500 TH/s so one good GPU did 2 GH/s for 150 Watts (https://sia.today/9/best-amd-gpus-hashrate) so there were about 500000/2 = 250000 GPU which mined Siacoin.
The total power consumption was about 250000 GPU x 150 W = 37.5 MegaWatts
When the A3 arrived, we can think that all GPU stopped mining immediately. The high electrical consumption didsn’t allow to earn some money against A3 (75watts/GH/s versus 1.6 Watts/GH/s and GPU had to mine much more time to mine 1 SC because of the difficulty increasing).
The Hashrate when A3 arrived went to about 11900 TH/s. One A3 use about 1275 Watts for mining about 815 GH/s so we can estimate there were about 11900TH/s / 0.815 = 14602 A3. So the total consumption was about 14602 A3 x 1275 W = 18.6 MegaWatts.
Right now the total hash rate is about 24000 TH/s so there are about 24000 TH/s / 0.815 TH/s = 29447 A3 and the total consumption is right now about 29447 A3 x 1275 Watts = 37.5 MegaWatts
As we can see, the A3 owners do not need to convert more SC than the GPU owners before A3 comes.
So the point 1 is not true and the electrical consumption doesn’t impact right now the price of SC.
