Now, that being said, if this speculation is true, how will that affect us in the near term? Obviously if they're shipping out another 30PH or so worth of gear we'll see upwards of a 10% diff adjustment going when it's powered on, if it's meant to be new equipment. If a good portion of it is to be able to replace and retire older, more inefficient hardware, then the diff adjustment would be a little less and even out to probably 4-7% given a 30-50% replacement rate.
I have a feeling it's mostly the latter, replacing old gear. I think you might be onto something about that initial spike in relation to the S5 batch, that would explain it. With summer in the north coming up hopefully difficulty will slow down a bit.
It is most likely upgrading gear. Many of us keep the power footprint the same to cut cost of the upgrade.
For an example:
3x s-3's = 1200 watts and 1.5 th on 1 evga 1300 g2
2x s-5's = 1200 watts and 2.3th on 1 evga 1300 g2
I think a lot of the above has happened. but that is not enough for this spike.
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KNC or Bitfury did an upgrade of gear. Or one of the new players fired up a farm.
I track sales for bitmaintech via known bitmaintech btc address's they sold under 3000 s-5's since they opened sales back up.
This is just the btc sales so 2x that and 5500 s-5's is the max they sold. that is 6ph or 6.6ph the jump is 25-30ph if 0 luck helped.
Say 20ph with some luck. So 20ph- 7 ph = 13ph maybe 20ph in big farm upgrades or startups.