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Post by kebabremovalunit on Dec 30, 2015 12:01:13 GMT
I hope to be able to help lead the project in bring power to the island as I have experience on 115kV systems alll the way down to 1.8V logic systems. I haven't looked into the island much yet but solar will likely be our main source of power but we can't run it at 12V and be anywhere near efficient for our needs. just wondering how much electricity would we need to power 50 people (estimated size of early colony) and how much might that cost be? It depends on what those 50 people are doing and how we live. If we only use lights at night that are LED and only for work in the day but not if we can help it at one 40 watt equivalent bulb (they draw 6 watts just about) we'd need 3000 watts a day of power which would be fairly manageable with 15 panels and a decent battery bank. It would cost around 6000 USD for the system However if we shacked up in group homes at the start we could cut the power usage in half. My personal recommendation is using solar for lighting and diesel for generators for tools that will run only during the day for a very limited time. As power tools and welders draw way to much power to be used on a solar system of that size. A rough guess would be 10,000 USD min. to get power to us that would allow lights at night and during the day we could use power tools and everything else we wanted while the gen sets were on. I would put it at 25,000 USD for fuel with better gen sets and a slightly larger battery bank so we could live slightly more comfortably at the start. |
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Post by polack on Dec 30, 2015 12:05:02 GMT
just wondering how much electricity would we need to power 50 people (estimated size of early colony) and how much might that cost be? It depends on what those 50 people are doing and how we live. If we only use lights at night that are LED and only for work in the day but not if we can help it at one 40 watt equivalent bulb (they draw 6 watts just about) we'd need 3000 watts a day of power which would be fairly manageable with 15 panels and a decent battery bank. It would cost around 6000 USD for the system However if we shacked up in group homes at the start we could cut the power usage in half. My personal recommendation is using solar for lighting and diesel for generators for tools that will run only during the day for a very limited time. As power tools and welders draw way to much power to be used on a solar system of that size. A rough guess would be 10,000 USD min. to get power to us that would allow lights at night and during the day we could use power tools and everything else we wanted while the gen sets were on. I would put it at 25,000 USD for fuel with better gen sets and a slightly larger battery bank so we could live slightly more comfortably at the start. say each of the 50 has 1 light bulb that is on for 6 hours (thats the minimum usage scenario) |
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Post by kebabremovalunit on Dec 30, 2015 12:10:26 GMT
It depends on what those 50 people are doing and how we live. If we only use lights at night that are LED and only for work in the day but not if we can help it at one 40 watt equivalent bulb (they draw 6 watts just about) we'd need 3000 watts a day of power which would be fairly manageable with 15 panels and a decent battery bank. It would cost around 6000 USD for the system However if we shacked up in group homes at the start we could cut the power usage in half. My personal recommendation is using solar for lighting and diesel for generators for tools that will run only during the day for a very limited time. As power tools and welders draw way to much power to be used on a solar system of that size. A rough guess would be 10,000 USD min. to get power to us that would allow lights at night and during the day we could use power tools and everything else we wanted while the gen sets were on. I would put it at 25,000 USD for fuel with better gen sets and a slightly larger battery bank so we could live slightly more comfortably at the start. say each of the 50 has 1 light bulb that is on for 6 hours (thats the minimum usage scenario) I guessed it to be a 6W draw at 120V which puts an equal amount of light to a standard 40W bulb for 8 hours each night. If we ran them off of 12V we would have to worry about conversion loss from 12VDC to 120VAC which the loss stands around 13% although we'd have line loss at 12V so unless we all lived right around the power inversion station 120V is better. |
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Post by Deleted on Dec 30, 2015 20:43:33 GMT
I hope to be able to help lead the project in bring power to the island as I have experience on 115kV systems alll the way down to 1.8V logic systems. I haven't looked into the island much yet but solar will likely be our main source of power but we can't run it at 12V and be anywhere near efficient for our needs. I was planning on 240V 50hz, type G socket. |
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Post by kebabremovalunit on Jan 1, 2016 4:08:31 GMT
I hope to be able to help lead the project in bring power to the island as I have experience on 115kV systems alll the way down to 1.8V logic systems. I haven't looked into the island much yet but solar will likely be our main source of power but we can't run it at 12V and be anywhere near efficient for our needs. I was planning on 240V 50hz, type G socket. We have a limited budget among other things right now so it doesn't really matter as long as we aren't re-buying whole sets of equipment to suit a 240V/50Hz or a 120/60Hz standard. Later on assuming this goes anywhere we can standardize on plugs and voltages but for now probably the best answer is to buy a set of each if we have enough people using 240V single phase and just make up adapters for the different plug styles. On a side note I think we should be using 240V NEMA L6-20R plugs in the future. |
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Post by Deleted on Jan 1, 2016 4:14:08 GMT
On a side note I think we should be using 240V NEMA L6-20R plugs in the future. What's so special about them? |
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Post by kebabremovalunit on Jan 1, 2016 4:18:59 GMT
On a side note I think we should be using 240V NEMA L6-20R plugs in the future. What's so special about them? They lock in place when you twist them so you can't unplug them by accident, They're rated at 20 amps, Most sockets and plugs are IP67 which means you can bring them under 1 meter of water for 30 minutes and dust does not effect them and they are polarized like most plugs so you can't plug them in backwards. The main feature is the twist lock. |
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Post by aussie1 on Jan 1, 2016 4:19:36 GMT
environmental engineer (pretty multi-skilled in practical applied sciences), worked for myself as a pro fisherman for 12 months as a working holiday, surf lifesaver of 10+ years (surf rescues, first aid but no higher level medical stuff), pretty handy with carpentry, worked as a sheet metal roofer for a while, handy with a chainsaw and tools in general, own a 30ft boat (fibreglass over plywood motor cruiser) and couple of light speed craft, pretty handy with simple diesel engines and 2-stroke outboards, low-voltage electrical systems (could work on 240V in a pinch, but no quals), have a few shipwright skills, decent with weapons and tactics (was in the army for a few years after high school).
This project appeals to my sense of adventure.
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Post by Deleted on Jan 1, 2016 4:33:10 GMT
They lock in place when you twist them so you can't unplug them by accident, They're rated at 20 amps, Most sockets and plugs are IP67 which means you can bring them under 1 meter of water for 30 minutes and dust does not effect them and they are polarized like most plugs so you can't plug them in backwards. The main feature is the twist lock. You can't accidentally unplug type G either and the plugs are flat against the wall so they don't get in the way. |
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Post by kebabremovalunit on Jan 1, 2016 4:51:30 GMT
They lock in place when you twist them so you can't unplug them by accident, They're rated at 20 amps, Most sockets and plugs are IP67 which means you can bring them under 1 meter of water for 30 minutes and dust does not effect them and they are polarized like most plugs so you can't plug them in backwards. The main feature is the twist lock. You can't accidentally unplug type G either and the plugs are flat against the wall so they don't get in the way. I've lived in England before and know from experience they wear out over the years and get loose and can be unpluged by pulling on them fairly hard not as easy as American plugs and not very doable on sockets that aren't worn out with plugs that aren't worn or perhaps my fiancees house just had very very worn plugs in it. But either way I'm not a real fan of fused plugs or shrouded L/N pins although I like how heavy your connectors are. |
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