Quote from: philipma1957 on June 03, 2018, 06:37:13 PM

the word may covers a lot of bases.

My device won't be doing that.

It would involve panels and dc to dc invertors .

Most of all it would be a pay one price getting you panels ,invertors, and you use a miner on the market now.

DC to DC inverters?

Frankly, what you wrote isn't even sounding sane.

Trying to come up with a workable explanation:

1) DC to AC inverters
2) haul power off the field to some shed in a shade
3) rectify AC and regulate DC
4) feed miners short distance in the shed

could probably work if you buy recycled/re-manufactured/B-stock parts and still somehow manage to get politically-motivated subsidies for the cost.

I understand that not mounting on the roof would greatly simplify inspection for fire and electrical safety. But you would still require some inspection if planning on connecting to the grid or use the power in the residence/business abutting the field where all that is installed.

On a second thought I even don't think that the inspection would be easier to pass. Fire safety definitely easier; but the electrical safety would be worse: the field mounted electrical stuff would need to be made child-safe. I heard second-hand stories about that type of safety inspections and various lawsuits related to leaving dangerous equipment unattended.

Edit: Additional posts preserved for further reference.

Quote from: philipma1957 on June 03, 2018, 09:24:17 PM

No dc to dc not dc to ac. They exist and you would end up feeding 24 dc into 12 dc output.

They have one that can tie to the grid so it is techniqucally an inverter / converter.

Or a 12 volt output power supply that can use dc or ac.

It is more costly then the straight dc to dc converter. Which would only run in daylight.

You need to understand the value is getting. Up to 20 years of power with no additional cost.

And that it is not for an apartment dweller . But it is for a person with some land,

If you are concerned about kids fucking with it then fence it like a dog run. After all the miner will be sitting in a doghouse Cheesy

I will be starting a new thread on this soon. I brought it up here as we will be testing it the next few weeks.

Avalon says they want newer ways of using chips when they make the 7nm well a 400 500 600 watt miner would be good for this idea.

new thread link

https://bitcointalk.org/index.php?topic=4415357.0

Quote from: philipma1957 on June 09, 2018, 06:39:39 PM

Quote from: andresrp on June 08, 2018, 09:10:50 PM

Phil, i met Sky at the training at Canaan in Beijing last April. I believe solar is a very powerful and possible idea for south american and central american countries. Excited to see the develop of this, and if you need to test this here just let me know

Sky has my contact info

I do have a prototype that can hold 2 L3+ or 1 S9i

It is outdoors a doghouse available at Amazon.com

I am going to take a photo or two of it now.

about 28 inches long

https://i.imgur.com/Q5PMo2x.jpg

about 25 inches high note air intake

https://i.imgur.com/Jgo42qb.jpg

note air leaving
https://i.imgur.com/th1HHmF.jpg

pair of L3+
https://i.imgur.com/vERn9pS.jpg

could use 1 s9i I am waiting to get some to check how well it cools.

2 L3+ doing voltage mod pull 1360 watts and run cool

https://i.imgur.com/CB8Phmg.png

Note to mods this is not about L3+ As my goal is to build this with s9i

s9i is cheap my tests show power and heat can be managed for L3+
the s9i come soon will show tests for it when it comes.

Sky has inverter/converter power source on order.

If we can build a solar power source with this in the 1500 watt range doing 5 hours per day in NJ where 13.7 to 16.7 cent power is common the source gives 7.5 kwatts a day that is 1.03 to 1.23 usd a day in power or 375 to 457 usd in power in a year.

The power source should have a long life no batteries involved
Easy to setup no grid connection.

the panels rate 20 years
the inverter/converter is 5 or 7 years.

So if we can sell it cheap enough it could work out.

Of course practicalities come in
maybe the ratings are too high .

maybe it does not last the timespan it should

we won't know till we rest a bit.