Topic: No profit to be made even with 2TH machines? (Read 3422 times)

maybe only for a few months, that there will be cointerra and knc probably and it will be 50% and more for a few periods. I can't see anything profitable in BTC mining unless you have very deep pockets.

Estimated Next Difficulty:    3,103,729,561 (+18.40%)
And last diff jump was 19,5%. Any chance we keep seeing ~20% diff increases? If so the new asics will be pretty profitable. Interesting to see what happens when all the cointerras hit the market.

The worst thing about preorders is that it makes the company lazy. Have you ever been paid for a task in advance and then given 100% effort towards that task?

If parents paid their kids for mowing the lawn before actually doing it, it may never get done!

I can agree to this.
You can profit bigtime if you can get money for preorders, design chips, produce them and mine with them and deliver only when it is not profitable to others. True story made by BFL.

You dont understand how the mining game works based on that sentence. Meteoric rise or crash has nothing to do with whether you profit or not.

Just buy BTC and dont touch for 5 years. Forget mining. Thank me later.

But network hashrate is not just dependent on efficiency on any particular device, its the sum total of all mining devices. Hardware manufacturers are gearing up to produce *many more* waters at current nm, and with much greater power efficiency. Ten devices run at 2TH/s will still add 20TH/s to the overall network hashrate.

People should take into consideration that they can't keep going down in nm, and therefore efficiency forever, or at least quickly.  My speculation is that efficiency will plateau for a bit at around 28-18nm

Not just BFL, but a very simple principle. If you pre-order at a specific price, and the kit is late, your ROI drops by the day because the network hashrate continues to climb. And since most pre-ordered kit (i.e. kit that hasn't been made yet) is normally late ....

some a lots people got scammed by Butterfly labs just because they decided to make pre-orders

Don't get me wrong you can get up to 30kW on most single family detached houses built in the last 10 years its just that most families wouldn't put up with Bitcoin miners plugged in all over the house.

I understand that there are some people out there that have garages and 400A services however this is not the norm.

I am simply trying to illustrate that the average person with a room in their house dedicated for mining isn't going to be able to get more than about 1TH/s.

EXACTLY!  I'm playing roulette with my circuits here, and while I think I've gotten things figured out...for now, I'm having to turn off my Avalon which pulls like 700W for a mere 60 Gh when my defective 1 blade antminer is still pulling 90+ GH off of 240 ish Watts. 

I still have an extra 1500 watts of electricity required for my soon to be built 1st scrypt rig.  Looking at homebuying options because its 36 degrees outside and 89 degrees inside. 

I had a 50 Amp sub panel installed and added a 20A 110v circuit and a 30A 220v. I'd intend to keep the machines running as long as the cost isn't more than I can afford -- I look at it as part of the investment. I imagine what the guys who stopped mining with GPUs cause they couldn't do more than a coin a day would do to go back in time and keep those things running.

Yes agree.

Little bit more East houses have 3x 30A or 3x25A sparks.... average Sauna has 6-8kW electric stove in here.
http://en.wikipedia.org/wiki/Sauna#Electric_stove_sauna
Electricity costs 0.12euro kWh

Here in the 1st World, we have 30A of 240V per ring, and most houses have at least two rings.  That's 7.2kW PER RING.  14.4kW per house, easily just from the sockets.

Can't be sure but I'm guessing the problems with amperage only really apply to those countries running 110v domestic supplies.  So UK Aus. and NZ will probably hang in there a bit longer.  1-2 Kw is pretty average for old fashioned plug in electric heaters in the UK.  The general warning about not having too many appliances in one socket still applied.   UK domestic plugs have built in fuses from 3 - 13amp so your plug fuse should go before the house wiring.

"If this is true there will be a huge shift to centralized mining facilities this year sometime which really worries me.

I really don't see how Bitcoin can survive centralized mining"

Yep i'm looking at quite a bit of second hand stuff people are attempting to dump on TradeMe (NZ Ebay equivalent) most of it being offered at stupid prices that you'd be mad to pay. The price of second hand gear doesn't seem to take into account the fact that you can't make any money out of it. 

It may be that a few enthusiastic soles will keep low cost stuff running at a continual loss. I'll probably keep my butterfly labs 25gh machine running through into winter (southern hemisphere) at which point it might just be a self subsidising room heater for a few months.

What's needed to keep a balance of mining safely neutral is more low cost high efficiency miners and the introduction of transaction charges so even the little guys get enough reward to encourage them to stay plugged in? 

This is real interesting and has me wondering about the future of distributed mining.

For the average person, dedicating a room and a circuit breaker in their home will be the most they could do without starting to look at server room options.

With this in mind, a 15A breaker can generally provide about 1440W of continuous power safely which currently translates to around 800GH/s of hashing power...and this is pushing it.

Assuming your right about the 1W per GH, the maximum hashing power that the average person will be capable of would be around 1.6TH/s which by my estimates will only be earning 1BTC/month by the end of June.

If this is true there will be a huge shift to centralized mining facilities this year sometime which really worries me.

I really don't see how Bitcoin can survive centralized mining.

Yes, and that exponential jump corresponds to a major leap in mining technology from GPUs to ASICs where ASICs are ~1000 times more efficient. I would only expect to see very modest improvements in ASIC tech moving forward. Knc, Bitfury, Cointerra, and Hashfast have all shown that ~1W per GH at the wall is about the best we're going to get from ASIC tech moving forward.

I expect ASICs to continue to get more efficient, but the incremental improvements will be much smaller. I think the difficulty will level out in ~3 months unless the price of BTC explodes again. If the price of BTC explodes again, all bets are off and much more money will flow into mining hardware.

I just checked the historical difficulty, and found that it has been growing exponentially (~10% at first, ~25% later on) every 2016 blocks for like a year. Of course, we shouldn't expect it to keep growing exponentially forever, but it is hard to tell when that trend will stop.

FYI: Difficulty was 6.7M 10 months ago, and will be around 2.6B in a few days.

Great plan, you are a genius. I didn't exactly the same thing as you.  So I am a genius too. 

Most of these mining calculators are way off.

For instance one said that difficulty would be 2,221,000,000,000 by Dec-2014. That's over 1100 times the current network. I did a quick estimate and if the current network were all antminers, it would be worth about $180 million. So 1100 x $180 million is about ~$200 billion. So do you really think $200 billion dollars worth of antminers will be added before December?

Mining always trends towards barely profitable.