Cryptocurrency
Bitcoin miners double down on efficiency and renewable energy at the World Digital Mining Summit

Bitmain rolled out its next-generation Antminer S21 and S21 Hydro ASIC miners at the World Digital Mining Summit (WDMS) in Hong Kong on Sept. 22, revealing the crucial performance stats the entire industry has been waiting for. The S21 has a hash rate of 200 terahashes per second (TH/s) and an efficiency of 17.5 joules per terahash (J/T), while the S21 hydro hashes at 335 TH/s and 16 J/T, which is notable given that until recently, most Bitcoin ASICS were operating above the 20 J/T level.
With electricity costs continuing to rise year-over-year and the Bitcoin halving projected to occur in April 2024, ASIC efficiency is quickly becoming the paramount focus of miners, and many are also pivoting toward folding in renewable energy sources as a core component of their operations.

Bitcoin miners focus on efficiency and renewable energy
Sustainable development in the mining industry was a core theme discussed in a majority of the panels at the WDMS. In the opening roundtable, team members from Terrawulf, Core Scientific, CleanSpark and Iris Energy shared their perspectives on how further integration of renewable energy sources will become a critical strategy to implement for many miners after the April 2024 Bitcoin supply halving.

According to Nazar Khan, Terrawulf’s chief operating officer:
“There’s a significant transition going on in the supply side of the generation process; there’s a concerted effort to decarbonize the entire supply stack, and so when we talk about Bitcoin miners consuming more renewable energy, that’s part of a broader theme that’s happening across the United States without Bitcoin mining as well. The role that we play is locating our Bitcoin mining loads in places where that’s happening and how do we facilitate that decarbonization process.“
One impact of the upcoming supply halving is that miners will maintain the same capital and operational costs, plus the need to pay down any revolving debts, while essentially seeing their block reward distribution cut in half.
For this reason, miners will either need to increase the percentage of their hash rate derived from sustainable energy sources or make efficiency adjustments to their ASIC fleet to maintain or increase their profitability.
Regarding the rollout of the Antminer XP 21 and its potential impact on the mining industry, BMC founder Justin Kramer said:
“The S21, if reliable, fairly priced and readily available — and yes, that’s a lot of ifs with Bitmain’s history — could revolutionize the crypto mining landscape with its efficiency. It is basically packing the power of two S19 100T miners into one unit. Despite this, the burgeoning aftermarket firmware market, coupled with hydro/immersion systems, give miners more tools to keep older generation miners, such as the S19, profitable also. Thus, while the S21 represents a notable advancement, it may not render sub 110 TH/s miners entirely obsolete.”
When asked about the more exciting aspects of the new S19 XP, Kramer noted that:
“I like that Bitmain is rewarding environmentally friendly mining farms with better pricing and advanced delivery with their new Carbon Neutral Certificate. But, I’ll add that, it was a little surprising when I noticed that both new S21 models offer 33% more hash rate (S21 200T versus 151T on S19j XP; S21 hydro is 335T versus the S19 XP Hydro at 257T). Is this a coincidence? I’m doubtful, and it likely signals more of the same systematic model releases from Bitmain where a slight tweak to the firmware and maybe a few other items that are adjusted results in a moderate increase in hash rate and a brand-new miner.”
Bitcoin is en route to becoming an ESG asset
A theme of the past few years has been an increase in Bitcoin miners and BTC advocates pushing back against the assertion that Bitcoin mining is bad for the environment, and that the industry’s reliance on carbon-based energy production accelerates emissions.
Countering this perspective, Hong Kong Sustaintech Foundation professor in accounting and finance, Haitian Lu, bluntly announced that:
“Bitcoin mining is promoting renewable energy adoption in many areas.”
Lu explained that “over the years, Bitcoin mining has become more efficient and is also using cleaner energy. History tells us that human development from an agricultural society to industrialization to the future of a digitalized economy goes with every increasing energy consumption per capita. What makes the difference is human’s ability to use renewable energy increases, thus achieving sustainable development.”
Like the perspectives shared by other panelists, Lu said that Bitcoin miners’ participation in demand response agreements with power producers and distributors leads to energy grid efficiency, and they “provide an economic incentive for the development of renewable energy “promotion and development of renewable energy projects.”
In addition to Bitcoin mining tapping into stranded energy, encouraging the development of renewable energy projects and helping to balance electric grids, the efficiency advancements of next-generation ASICs like the Antminer S21 reduce miners’ energy consumption while also allowing them to boost their profits.
Cryptocurrency
Ethereum Foundation, Whales, and Hackers: What’s Driving the ETH Sell-Off?

TL;DR
- Whales, hackers, and the Ethereum Foundation wallets moved over $500M in ETH through large sales and withdrawals.
- Ethereum transfers rose to 4.6M ETH, nearing the monthly high of 5.2M recorded in July.
- Staking inflows hit 247,900 ETH, the highest in a month, locking more supply from trading.
Large Withdrawals and Whale Activity
Ethereum (ETH) has seen heavy movement from major wallets over the past few days. On-chain data from Lookonchain shows a newly created wallet pulled 17,591 ETH, worth $81.62 million, from Kraken in just two hours.
Over three days, two new wallets withdrew a combined 71,025 ETH, valued at $330 million, from the exchange.
One of these wallets, address 0x2A92, has withdrawn 53,434 ETH, worth $242.34 million, in two days. This includes a recent purchase of 30,069 ETH, valued at $138.46 million, during a market drop.
Major ETH Holders Offload Millions Amid Price Rally
In contrast, several separate entities have been disposing of some ETH holdings. A wallet tied to a hacker address 0x17E0 sold 4,958 ETH for $22.13 million at $4,463, securing a profit of $9.75 million. Earlier this year, the same address sold 12,282 ETH at $1,932 and later bought back part of the amount at higher prices.
A different whale sold 20,600 ETH for $96.55 million over the past two days, generating a profit of more than $26 million after holding the position for nine months.
Meanwhile, an Ethereum Foundation-linked wallet, 0xF39d, sold 6,194 ETH worth $28.36 million in the last three days at an average price of $4,578.
Recent sales from the same wallet included an additional 1,100 ETH and 1,695 ETH for over $12.7 million combined.
The #EthereumFoundation-linked wallet(0xF39d) sold another 1,300 $ETH($5.87M) at $4,518 ~11 hours ago.
Over the past 3 days, this wallet has sold a total of 6,194 $ETH($28.36M) at an average price of $4,578.https://t.co/4hfCWymHVG pic.twitter.com/ErUyEY8SJy
— Lookonchain (@lookonchain) August 15, 2025
Network Activity on the Rise
CryptoQuant data shows Ethereum’s total tokens transferred have been climbing since August 9. After ranging between 1 million and 3 million ETH through late July and early August, transfers have risen to 4.6 million ETH, approaching the monthly high of 5.2 million recorded in mid-July. This increase has occurred alongside a price rally from about $3,400 to $4,600.
Interestingly, staking inflows generally stayed between 20,000 and 80,000 ETH per day over the past month. On August 14, inflows jumped to 247,900 ETH, the highest in the period.
At the time, ETH was trading near $4,600. Large staking deposits reduce the amount of ETH available for immediate trading, as staked coins are locked for a set period.
In the meantime, ETH trades at $4,647 with a 24-hour volume of $68.25 billion, down 2% on the day but up 19% over the week.
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Cryptocurrency
Massive DOGE Whale Activity Hints at $1 Breakout

TL;DR
- Whales bought two billion DOGE this week, lifting their combined holdings to 27.6 billion coins.
- A single 900M DOGE transfer worth $208M to Binance drew attention to large exchange movements.
- DOGE broke key resistance, with momentum building for a possible push toward the $1 price mark.
Price and Market Moves
Dogecoin (DOGE) traded at $0.23 at press time, slipping 4% over the past day but still showing a 2% gain for the week. Daily turnover came in at about $6.18 billion.
Meanwhile, the broader crypto market saw over $1 billion in liquidations. Hotter-than-expected US Producer Price Index data pushed traders to scale back expectations of a near-term Federal Reserve rate cut. DOGE had roughly 290,500 coins liquidated during the sell-off.
On the two-week chart, analyst Trader Tardigrade notes that DOGE has cleared a downward-sloping resistance line after completing what appears to be a “wave V” in an Elliott Wave sequence. Similar setups in the past, where prolonged declines stayed within falling channels before breaking higher, have been followed by sharp rallies.
$Doge/2-week#Dogecoin is gaining strong momentum to surge above $1 pic.twitter.com/TuSEKr19nv
— Trader Tardigrade (@TATrader_Alan) August 15, 2025
Momentum gauges are also turning up. The Stochastic RSI, which had dropped into oversold territory, is now heading higher. Previous reversals from this zone have coincided with sustained upward moves. The current formation points to a possible run that could carry DOGE past the $1 mark.
Heavy Whale Buying and Large Transfers
As reported by CryptoPotato, blockchain data shows large investors have added two billion DOGE in the past week, spending just under $500 million. That brings their holdings to about 27.6 billion coins, or 18% of the supply. The buying streak has prompted speculation within the community.
Recently, Whale Alert flagged a 900 million DOGE transfer worth about $208 million into Binance. The tracking indicates that it originated from a wallet connected to the exchange, likely as an internal activity. The address involved holds 2.88 billion DOGE, one of the largest balances on the network.
Ali Martinez also reports that transactions above $1 million reached a one-month high, with activity building since early August and peaking as DOGE traded at $0.25.
Whales are back! Dogecoin $DOGE activity at a 1-month high. pic.twitter.com/C83Pv68mCt
— Ali (@ali_charts) August 14, 2025
Sentiment Building
Analyst Gordon described the current setup as “a nice bit of consolidation” before a potential breakout, adding,
“This will be one of the first coins normies FLOCK to & the pump will be MASSIVE.”
With whale accumulation rising, high-value transfers increasing, and a bullish technical pattern in play, DOGE is positioned for a potential push toward $1 if momentum holds.
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Cryptocurrency
Ripple Price Analysis: XRP at Risk as Key Support Levels Could Trigger Sharp Drop

XRP has recently entered a consolidation phase after a strong rally earlier this summer, with the price action now hovering around key resistance levels on both its USDT and BTC pairs. Yet, while momentum has slowed, the charts still indicate a generally bullish structure, with multiple key support levels remaining firmly in place.
Technical Analysis
By ShayanMarkets
The USDT Pair
On the XRP/USDT daily chart, the price is currently trading near the $3.10 mark, facing a strong resistance zone around $3.40. This follows a breakout above the $2.70 range in July, which has now flipped into a support area.
Both the 100-day and 200-day moving averages are also trending upward and recently formed a bullish crossover around $2.45, reinforcing the medium-term bullish sentiment. If the $3.40 resistance breaks, a push toward the critical $4.00 range becomes likely.
However, the RSI hovering near the neutral 50 level suggests a lack of strong momentum for now, meaning a short-term pullback into the $2.80 support zone is still possible.
This zone will be key for maintaining the bullish structure. Losing it could open the door for a deeper correction toward the 200-day moving average located around the $2.40 mark. Yet, as long as the price stays above the moving averages, the broader trend remains bullish.
The BTC Pair
Looking at the XRP/BTC chart, the pair has recently pulled back after hitting the 3,000 SAT resistance, with the price currently around 2,600 SAT.
This follows a clean breakout above the long-term descending channel and a successful retest of its upper boundary, which coincided with the 200-day moving average and the 2,400 SAT support zone. This confluence remains a key bullish technical factor, as holding above it could attract renewed buying pressure.
That said, RSI levels around 48 show that momentum has cooled after the sharp July rally, meaning XRP may continue ranging between 2,400 SAT and 3,000 SAT in the near term. A decisive close above 3,000 SAT would likely open the path to the 3,400 SAT zone, while losing 2,400 SAT could shift the bias back toward 2,000 SAT support. For now, the structure still favors the bulls as long as higher lows remain intact.
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Disclaimer: Information found on CryptoPotato is those of writers quoted. It does not represent the opinions of CryptoPotato on whether to buy, sell, or hold any investments. You are advised to conduct your own research before making any investment decisions. Use provided information at your own risk. See Disclaimer for more information.
Cryptocurrency charts by TradingView.
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