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Bitcoin Mining Difficulty Set For New All-Time High. What Comes Next?

Sead Fadilpašić
Last updated: | 5 min read

Miners’ machines seem to be on and hard at work as mining Bitcoin (BTC) is about to get more difficult – reaching a brand new all-time high, thus increasing operational costs to mine the coin. Two industry players weighed in on what might come next.

A crypto mining farm. Source: Adobe/hlxandr

Bitcoin mining difficulty, which is the measure of how hard it is to compete for mining rewards, is about to reach two milestones: an all-time high, and stepping into the never-before-seen 17 T territory.

The mining difficulty, if the current estimations by mining pool come true, will rise 8.92% in little less than three days – completely skipping over the 16 T range this time, and climbing to 17.19 T.

This follows an unchanged difficulty level during the previous adjustment, and the highest jump in two years recorded in mid-June, which itself was preceded by the eight highest drop.

The last time the difficulty was above 16 T was in early May, before the third Bitcoin halving. But the previous all-time high happened even before that, in early March this year, with 16.55 T.

The price of bitcoin has been keeping steady in the lower USD 9,000 level, not making any major swings lately. At the time of writing (13:26 UTC), the coin is changing hands at USD 9,228, having dropped just above 2% in 24 hours and appreciated less than 1% in a week. The price is down by 6% in a month and 21% in a year.

The mining difficulty of Bitcoin is adjusted every two weeks (every 2016 blocks, to be precise) to maintain the normal 10-minute block time. Since June 30, it was below 10 minutes and dropped below 9 minutes yesterday.

The battle of generations

Meanwhile, the computational power of the network, known as hashrate, has been rising as well. Since the previous difficulty adjustment on June 30, hashrate (7-day moving average) jumped nearly 7%.


Discussing growing hashrate lately, while activity in the market dropped, Tim Rainey, Chief Financial Officer of Greenidge Generation, New York-based fully compliant cryptocurrency mine-power plant hybrid, said that the reason behind this is mainly newer-generation machines coming online from pre-orders, which were placed a few months ago.

“These newer [generation] machines pack in higher hashrate per machine than their previous generation,” Rainey told “This difference is twice in the case of market-leading Antminer machines from Bitmain, where Antminer S19 has twice the hashrate of its predecessor Antminer S17. Furthermore, larger bulk orders from industrial-scale data centers, which have been cycling out their older machine models, have catalyzed this process.”

Meanwhile, BTC.TOP, a Bitcoin mining pool and mining services provider, estimates that no significant percentage of mining machines would be forced to shut down inside China, which accounts for approximately 70% of the total hashrate, the pool’s founder and CEO Jiang Zhuoer told

“Experienced and industrial scale miners continue to mine profitably with the extremely popular old-generation Antminer S9 after firmware-level modifications that increase efficiency to meet their business models. They would continue to do so after the upcoming difficulty adjustment,” Zhuoer said.

As an example he gave an Antminer S9 miner that has a power efficiency of 92J/TH, stating that “with an Asic-boost enabled firmware and after underclocking it we are able to operate it at 78J/TH. Even if the machine’s performance has deteriorated over time, it can still at least achieve an efficiency of 85J/TH.” That may not meet the business model of some data centers given their electricity costs, but they can resell such machines to industrial-scale data centers, such as BTC.TOP’s, which have access to cheaper electricity.

BTC.TOP also doesn’t expect the hashrate to change much this summer. According to Zhuoer, there are two main reasons behind this:

  1. Most data centers have already sold or unplugged the older generation mining machines that could no longer meet their profitability requirements. The re-sold machines are already operating in data centers that will continue to mine profitably with them until at least the end of summer;
  2. The supply of latest generation miners is limited. Bitmain, which accounts for a majority of the global market share, is sold out of latest generation miners until the end of this year. MicroBT, which holds the second-largest market share, is sold out until November, with latest generation miners for December not available yet. One of the reasons for this supply crunch could be the ongoing infighting and management issues inside Bitmain and Canaan, the third-largest miner-maker by market share.

Sell or hodl?

Another important question is whether miners will be selling more or less BTC into the market in the coming weeks. Rainey stated that this difficulty adjustment will have little influence on the strategy used by institutional scale mining data centers. They “utilize financial forecasts and risk analysis for better planning,” and “will continue to execute whichever strategy they believe is best for their company.”

“Miners on the fringe will be making decisions to liquidate more of their BTC to pay bills, or shutting down their old-generation machines hoping for a reversal in the next difficulty adjustment,” Rainey said.

Greenidge Generation believes that the price of BTC will rise, so they hodl “a small portion” of their mining rewards, said the CFO. But the company continues to liquidate the majority of the BTC that they mine, Rainey said, adding that they are different from other mining operations “in that we have optionality in how we generate revenue from the power that we produce in-house, so when we make the daily decision to mine vs sell power to the grid, we want to ensure that the economics we capture match up as close as possible to the decision making.”

BTC.TOP’s CEO also said that they “always keep as much of mined cryptocurrency as possible and sell only the amount needed to cover our operating expenses.” They often utilize a portion of the crypto holdings to borrow from crypto-lending institutions, said Zhuoer. “While most miners borrow as much as 65% of their collateralized crypto, we keep this percentage around 35% to keep the risk low.”

Per ByteTree, recently, miners have been holding more generated BTC than they were spending. In the past week, they generated BTC 6,950 and spent BTC 6,319.

Source: ByteTree


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