Scammers use data from the shipping addresses. I conclude this from the fact that they use my friend's name when greeting me in email.      

With BM i use a shipping address to my friend's location, for some reason.  So scammers don't have access to the inner BM database, where my real name is mentioned.

New bitcoin miner from Japan company GMO which is on 7nm tech process, and it produces only 24Th/s with nearly 2000 Watts consumption - which is about 15% more efficient that S9.    So yes, the NEW technology will NOT be very exciting.

Some people say Bitmain has sold our contact information to the scammers, which i personally don't believe in        More possible is that some of BM employeers has sold it.   

Here is a discussion on bitcointalk about this scam :

https://bitcointalk.org/index.php?topic=4447376.20

Anybody knows how do scammers achieve sending email from Bitmain domain?

Bitmain sent emails a few days ago to his customers telling about this:

It's not quite fair to say they steal the rigs, but you have the right of course.  They just don't deploy the rigs due to costruction delays, but you can always ask them to send the rigs elsewhere - to your home for example.

Pangborn Update from GW - 8 June 2018

 - Nepel Electric along with our staff was onsite this week to ensure that all aspects of our testing will pass without question. PSE(Puget Sound Energy) moved our testing and rescheduled for the UL inspection tentative Monday, Wednesday and Thursday(6/11, 6/13-14) and L&I will be doing their final testing on Thursday 6/14. We are working with the Sr Field Engineer at the PUD to get both an operator and a mobile substation. We have found a company that can provide a low side breaker for the mobile substation from Snohomish PUD and the Douglas county PUD has also found a few options that could possibly work for our site. We should be able to move forward with both a operator and mobile sub next week. Once approved the mobile substation can arrive within one day and the low side breakers can be onsite within 3-5 days coming from the east coast.

By the way,  BTC address they put on email - already received more than 2 bitcoins (!)   

Be very cautious.

Beaware of S11 SCAM!!    These days many people received such email :



In attachmed "description" scammers offer :

Hash Rate: 79.5TH +-5%
Power Consumption: 1400w using Bitmain APW3 1600W
 for $2300

and ask for BTC?LTC payments

Wow, just got same email - but from info@am-airbrush-design.de and with 79 Th (not 74 )   

Email looks quite convincing though...   It is not mentioned on Bitmai web site.    Here was attached description to email :

GMO designed the machine in Japan, which is known for high quality. This means their rigs may outperform the china competitors in terms of quality.

Designed in Japan, produced in Taiwan



I would not be surprised if they offer 1 year warranty. This can be a big advantage.

Pity, this is really a bad situation.  Their biggest fault is that they stated definite deployment terms in White Paper.  It was better to mention in every promise that they don't take responsibility for the officials' actions, so people would clearly uderstand the risks.

Rent-free means that the token's holder does not pay a rent to GW , which varies from 5.7c to 8.4c per kW/h.   But you have to pay maintenance fee of 0.5c and electricity - which is 2.8c now - but may raise in future, if electro-generating company raises it .

They still did not build all facilities, so many customers are still waiting for monthes for deployment of their rigs.  They promise that 100% of WTT will be used after final building in Pangborn which is currently under way, and which was expected to finish in April, then May, and now June....

We can simply use calculator to compare profitability, and can see that ROI for B2 is 100 days more than with S9i :



That is, while efficiency of B2 is 15% more than of S9i,  but high price makes it 30% less attractive for ROI.

Are you sure we have bought electric upfront??    I doubt GW has so much money for this purchase.   GW has an agreement with local authorities, for sure, but I have not seen they guarantee our price for future...

I would agree, because BM price is 4 times less now, for S9i  -  and  taking $100 coupon in account, which I have a few, I would better order S9s for delivery in a few weeks.

---

By the way, this miners would need a 2,200 Watt PSU - which can cost much more than Bitmain's atandart APW3++.

Does anybody know how much a good PSU of 2200 Watts costs?

---

JUST RELEASED !!!  



GMO has just made a public presentation of their 7NM miner!


https://www.ccn.com/gmo-unveils-japans-first-ever-bitcoin-mining-rig/

Interesting:
the B2’s 7nm chips were produced in Taiwan, most likely by TSMC, which also supplies China-based mining giant Bitmain with most of its chips.  
They are planning to supplant Bitmain, using the same manufacturer as Bitmain uses  

By the way, local residents are not very happy of Bitcoin mining in their territory. They are afraid that electricity rates will go up ...

Article   Bitcoin backlash as ‘miners’ suck up electricity, stress power grids in Central Washington

"Public hearings for rural electric utilities are rarely sellout events. But the crowd that showed up in Wenatchee two weeks ago for a hearing about Bitcoin mining in Chelan County was so large that utility staff had to open a second room with a video feed for the overflow."

https://www.seattletimes.com/business/bitcoin-backlash-as-miners-suck-up-electricity-stress-power-grids-in-central-washington/

Pangborn June 1st update

Pangborn Development Site VI
Work continues building out the Giga Watt facilities at Pangborn
JUNE 1

Today we entered the testing phase of our site. SigmaSix was testing all breakers, transformers, and connections from the substation switchgear to each pod. The electricians were also on-site repairing all of the troubled areas that were discovered during testing, and preparing for our L&I inspection that should be happening next week.

PSE will be at Pangborn doing the UL field certification on all of the equipment deployed in the pods starting next week. All equipment including assembly of all the miners, PSU, fans, and control panels will need to be certified. At the request of the PUD we are halting assembly of the substation. This is for the event that when they take control they would like to make any changes for operating and maintaining it.

This does not however halt the progress of the mobile substation. This was approved by the PUD and we are working with Snohomish PUD on their unit that we have been looking to move to Pangborn. The Douglas County PUD has requested that they install low side breakers to the unit. Regarding the operation of the permanent substation the PUD has agreed to supervise a company or operator that is comfortable doing so. We will work with them as well as our engineering company, CTC, to select a suitable candidate for this. The remaining pieces of the H-Frame will be brought in by the PUD next week and installed. These pieces are on the lower side bringing the lines to the metering cabinet.

When does dupport promise to deploy your rigs?