HomeAboutMailing ListList Chatter /0/0 34.228.30.69

OT: Solar

2018-11-28 by: Nick Smith
From: Nick Smith 
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Quiet around here lately.

I know nothing about solar yet, but wanted to see if anyone on the list has
experience with it.  I have a rack of servers that i want to see if its
even possible to power with solar and what the cost would be.  Its costing
me an arm and a leg.  I know it was expensive last i heard about it but im
hoping the tech has improved and the cost has come down.  Im mainly looking
for suggestions on the best bang for my buck.  I still need to calculate
the power im going to need for the rack as well, just trying to figure out
the cost per, i guess, watt?  Then i guess ill need some massive batteries
if its going to stay running all night?  Is that even possible or is it
just wishful thinking?  Im gonna guess and say i need at least 2000 watts.

Thanks guys, hope everyone had a great turkey day.

-- 
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Nick Smith
nick at nicksmith dot us
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=============================================================== From: Aaron welch ------------------------------------------------------ A constant 2KW solar install would be prohibitively expensive. According to this calculator you would need a minimum 15KW system to run that power load using 300W panels (you would need 52 panels). https://www.wholesalesolar.com/solar-information/start-here/offgrid-calculator -Aaron

=============================================================== From: Stephen Kraus ------------------------------------------------------ And you need batteries. Solar alone is nothing without storage. Solar is good on volts, but doesn't put out much in the way of amperage, which batteries have. On Wed, Nov 28, 2018, 10:07 AM Aaron welch A constant 2KW solar install would be prohibitively expensive. According

=============================================================== From: Lynn Dixon ------------------------------------------------------ I have looked into solar for my house twice. The first time was about 4 years ago, and the second time was about 8 months ago. It is insanely expensive at this point, even with the price drops and government incentives. We are pretty power efficient here at home, and after running all the numbers, it was something like an 8-10 year ROI. In todays market, solar doesn't really add much value to a home for purchasers, so unless you plan on keeping your home for longer than a decade or so, its very hard to justify on cost alone. That changes of course, if you have a large enough yard to install a solar farm, my quotes were for roof mounted. On Wed, Nov 28, 2018 at 11:13 AM Stephen Kraus wrote:

=============================================================== From: Michael Scholten ------------------------------------------------------ Has anyone looked at Project Sunroof by Google? https://www.google.com/get/sunroof#p=0

=============================================================== From: Nick Smith ------------------------------------------------------ Well so much for that idea.

=============================================================== From: Aaron welch ------------------------------------------------------ =46rom someone who spent 2 1/2 years trying to build data centers all around= the world, the only place you=E2=80=99re going to get cheaper power then ri= ght here in Tennessee is stealing it in China. There are other clients and g= eographies that make it cheaper to operate the data center, but the power is= still cheaper here. -Aaron This was sent from my iPhone, so I apologize for any brevity or spelling err= ors. Siri also hates the southern accent and autocorrect is on a mission to g= ive me an aneurysm. e: o this calculator you would need a minimum 15KW system to run that power loa= d using 300W panels (you would need 52 panels). lator as experience with it. I have a rack of servers that i want to see if its e= ven possible to power with solar and what the cost would be. Its costing me= an arm and a leg. I know it was expensive last i heard about it but im hop= ing the tech has improved and the cost has come down. Im mainly looking for= suggestions on the best bang for my buck. I still need to calculate the po= wer im going to need for the rack as well, just trying to figure out the cos= t per, i guess, watt? Then i guess ill need some massive batteries if its g= oing to stay running all night? Is that even possible or is it just wishful= thinking? Im gonna guess and say i need at least 2000 watts.

=============================================================== From: David Rucker ------------------------------------------------------ self you can get it down to about $1 a watt. I have seen instances where people made their own panels and push the cost down to about $0.50 a watt. On rare occasion used panels can be had in the ball park of $0.05~$0.10 a watt. Now those prices are for generation only, not counting inverters or storage. The best bang for buck storage wise is recycling old laptop/drill batteries by harvesting the Li-Ion 18650 cells and building your own bank, just search diy powerwall. If you don't know enough about electrical to do everything your self your ROI is too far out to make it really worth it. Which if any one has any laptop or drill batteries that they are wanting to recycle or part with I'd be happy to assist with that. Thanks, David R. d right here r on r ulator its ing im king e out ies ts.

=============================================================== From: Lynn Dixon ------------------------------------------------------ Better run all that DIY power generation by your homeowners insurance company. You might be surprised if they don=E2=80=99t cover roof damage if= you have diy installed panels...even though you have storm damage done to your roof. Same goes for if one of those diy batteries catch on fire. Lithium batteries burn....hot and quick. On Wed, Nov 28, 2018 at 5:51 PM David Rucker wrote: r d er then ion g er culator t f its ting t im oking te out ries t tts.

=============================================================== From: Stephen Kraus ------------------------------------------------------ Avoid running home made power banks indoors. If you plan to do a deep cycle marine battery band, setup a shed outdoors with good ventilation and smoke/gas monitoring. On Wed, Nov 28, 2018, 6:11 PM Lynn Dixon Better run all that DIY power generation by your homeowners insurance if you r a ld r wer then s e g sion un lculator see Its out it ainly o g to assive ble or 2000

=============================================================== From: David Rucker ------------------------------------------------------ When I get to the panels I'm planning on putting them near the house and not on top of. My roof angles the sun in an odd way that would lower the efficiency. I'm also planning/designing a lot of safety for my battery bank including temperature sensors and fusing every cell, similar to the way Tesla makes their packs. I work for a company that designs and builds industrial equipment. So most of what I'm going to utilize will actually be industrial grade and fire/arc flash rated where appropriate. Once I start making a descent amount of progress I also plans to start posting videos about my plans and processes. Thanks, David R. d if you ur m 0 a ~ old g g : ower then ts he s on run alculator o see Its bout it mainly to ng to massive ible or 2000

=============================================================== From: russell c ------------------------------------------------------ AISO (https://www.aiso.net/ ) = powers their data center with their own solar panels. We used to use = them for email service and VMs at work. They were always friendly and = helpful and would probably share info about their solar setup if asked. = If you map their address on Google Maps satellite view you can see their = solar panel setup. It doesn=E2=80=99t look like that big of an = operation. It=E2=80=99s the shed and panels next to the house on Google = Maps. -Russell list has experience with it. I have a rack of servers that i want to = see if its even possible to power with solar and what the cost would be. = Its costing me an arm and a leg. I know it was expensive last i heard = about it but im hoping the tech has improved and the cost has come down. = Im mainly looking for suggestions on the best bang for my buck. I = still need to calculate the power im going to need for the rack as well, = just trying to figure out the cost per, i guess, watt? Then i guess ill = need some massive batteries if its going to stay running all night? Is = that even possible or is it just wishful thinking? Im gonna guess and = say i need at least 2000 watts.

=============================================================== From: Aaron welch ------------------------------------------------------ I have a line on THOUSANDS of 18650 cells and some of the 26xxx cells BTW. -Aaron This was sent from my iPhone, so I apologize for any brevity or spelling err= ors. Siri also hates the southern accent and autocorrect is on a mission to g= ive me an aneurysm. te: ur self you can get it down to about $1 a watt. I have seen instances where p= eople made their own panels and push the cost down to about $0.50 a watt. On= rare occasion used panels can be had in the ball park of $0.05~$0.10 a watt= . Now those prices are for generation only, not counting inverters or storag= e. The best bang for buck storage wise is recycling old laptop/drill batteri= es by harvesting the Li-Ion 18650 cells and building your own bank, just sea= rch diy powerwall.=20 OI is too far out to make it really worth it.=20 o recycle or part with I'd be happy to assist with that. und the world, the only place you=E2=80=99re going to get cheaper power then= right here in Tennessee is stealing it in China. There are other clients an= d geographies that make it cheaper to operate the data center, but the power= is still cheaper here. rrors. Siri also hates the southern accent and autocorrect is on a mission t= o give me an aneurysm. ote: g to this calculator you would need a minimum 15KW system to run that power l= oad using 300W panels (you would need 52 panels). culator t has experience with it. I have a rack of servers that i want to see if it= s even possible to power with solar and what the cost would be. Its costing= me an arm and a leg. I know it was expensive last i heard about it but im h= oping the tech has improved and the cost has come down. Im mainly looking f= or suggestions on the best bang for my buck. I still need to calculate the p= ower im going to need for the rack as well, just trying to figure out the co= st per, i guess, watt? Then i guess ill need some massive batteries if its g= oing to stay running all night? Is that even possible or is it just wishful= thinking? Im gonna guess and say i need at least 2000 watts.

=============================================================== From: david.dupre@gmail.com ------------------------------------------------------ How much will they cost? Are they used or new? What brand name? What are they rated? =20 =20 Thanks, David =20 From: Chugalug On Behalf Of Aaron welch Sent: Wednesday, November 28, 2018 10:00 PM To: Cha. Unix Gnu Android Linux User Group Subject: Re: [Chugalug] OT: Solar =20 I have a line on THOUSANDS of 18650 cells and some of the 26xxx cells = BTW. =20 -Aaron This was sent from my iPhone, so I apologize for any brevity or spelling = errors. Siri also hates the southern accent and autocorrect is on a = mission to give me an aneurysm. your self you can get it down to about $1 a watt. I have seen instances = where people made their own panels and push the cost down to about $0.50 = a watt. On rare occasion used panels can be had in the ball park of = $0.05~$0.10 a watt. Now those prices are for generation only, not = counting inverters or storage. The best bang for buck storage wise is = recycling old laptop/drill batteries by harvesting the Li-Ion 18650 = cells and building your own bank, just search diy powerwall.=20 =20 If you don't know enough about electrical to do everything your self = your ROI is too far out to make it really worth it.=20 =20 Which if any one has any laptop or drill batteries that they are wanting = to recycle or part with I'd be happy to assist with that. =20 Thanks, David R. =20 around the world, the only place you=E2=80=99re going to get cheaper = power then right here in Tennessee is stealing it in China. There are = other clients and geographies that make it cheaper to operate the data = center, but the power is still cheaper here. =20 =20 -Aaron This was sent from my iPhone, so I apologize for any brevity or spelling = errors. Siri also hates the southern accent and autocorrect is on a = mission to give me an aneurysm. Well so much for that idea. =20 A constant 2KW solar install would be prohibitively expensive. According = to this calculator you would need a minimum 15KW system to run that = power load using 300W panels (you would need 52 panels). =20 https://www.wholesalesolar.com/solar-information/start-here/offgrid-calcu= lator =20 -Aaron =20 Quiet around here lately. =20 I know nothing about solar yet, but wanted to see if anyone on the list = has experience with it. I have a rack of servers that i want to see if = its even possible to power with solar and what the cost would be. Its = costing me an arm and a leg. I know it was expensive last i heard about = it but im hoping the tech has improved and the cost has come down. Im = mainly looking for suggestions on the best bang for my buck. I still = need to calculate the power im going to need for the rack as well, just = trying to figure out the cost per, i guess, watt? Then i guess ill need = some massive batteries if its going to stay running all night? Is that = even possible or is it just wishful thinking? Im gonna guess and say i = need at least 2000 watts. =20 Thanks guys, hope everyone had a great turkey day. =20 --=20 -------------- Nick Smith nick at nicksmith dot us

=============================================================== From: Aaron welch ------------------------------------------------------ I will find out more details tomorrow. How many would you need for your proj= ect? I can prolly get a decent deal on them. -Aaron This was sent from my iPhone, so I apologize for any brevity or spelling err= ors. Siri also hates the southern accent and autocorrect is on a mission to g= ive me an aneurysm. rrors. Siri also hates the southern accent and autocorrect is on a mission t= o give me an aneurysm. te: ur self you can get it down to about $1 a watt. I have seen instances where p= eople made their own panels and push the cost down to about $0.50 a watt. On= rare occasion used panels can be had in the ball park of $0.05~$0.10 a watt= . Now those prices are for generation only, not counting inverters or storag= e. The best bang for buck storage wise is recycling old laptop/drill batteri= es by harvesting the Li-Ion 18650 cells and building your own bank, just sea= rch diy powerwall.=20 OI is too far out to make it really worth it.=20 o recycle or part with I'd be happy to assist with that. nd the world, the only place you=E2=80=99re going to get cheaper power then r= ight here in Tennessee is stealing it in China. There are other clients and g= eographies that make it cheaper to operate the data center, but the power is= still cheaper here. rrors. Siri also hates the southern accent and autocorrect is on a mission t= o give me an aneurysm. : o this calculator you would need a minimum 15KW system to run that power loa= d using 300W panels (you would need 52 panels). ator s experience with it. I have a rack of servers that i want to see if its ev= en possible to power with solar and what the cost would be. Its costing me a= n arm and a leg. I know it was expensive last i heard about it but im hopin= g the tech has improved and the cost has come down. Im mainly looking for s= uggestions on the best bang for my buck. I still need to calculate the powe= r im going to need for the rack as well, just trying to figure out the cost p= er, i guess, watt? Then i guess ill need some massive batteries if its goin= g to stay running all night? Is that even possible or is it just wishful th= inking? Im gonna guess and say i need at least 2000 watts.