I was offered a job there in Juneau area and i was looking to retire there in the future ..It going to be about 45 miles south of Juneau on a small 1/2 half sized lot .. The land has great view of the sun in the southern sky as it pass overhead along with the area is also great for a small wind turbine for there is a breeze comeing off the ocean dureing the day and it strong enough to run a small turbine system as the day i wa there the wind was going like crazy at a good clip ..The place is going to be a weekend getway starting out at first then after retirement it going to be a full time place there
I have done the home work for the Amp hours that i'm going to use in the cabin with all the appliance's i have chose for the place ..Everything i chose for the place is 12.volt or enegry star rated type appliances to squeeze out the lowest wattage i can out of the 120.volt items i have bought for use at the place ..
My biggest problem is trying to figure out the winter months from Oct To Feb time frame and how many actul hours of sun i will get dureing the days along with the small wind turbine system for i need to make the solar panel to get the max amount of sun light to make power for the place..
My system design calls for the panels -x-six Kyocea KD135GX 12.volt panel's on a pole system with a Air X 200.watt air tubine on a 15.ft tall pole system to recharge the battery bank and wire as they are need for use to charge the bank unit as it need
As part of the planed system is to use a Outback VFX3648 Flexpowe all in one system for the inverter along with dc and ac fuse boxs and multi other units put into one unit for makeing it easy to wire up and mount on the mud room wall where the battie rack is going to be at
The batties are Sun Xtended 12,volt PVX 2580L AGM sealed Batties -each batties has a 255 amp hours over a 20 hour time frame ..
The system i have design for the cabin is design to use a two battery bank set up of 10-.battery's each with the system working as follows
1-bank 1-is online running the cabin and provideing all the power as it need to all the units that are on and running at the time from the tv to laptop computer to the rv water pump for the sinks and shower ..
2-bank-2-is off line and beening charged with the solar and wind combo system and the reason why for a week long charge time i was told this alot better for the battery bank to allow it to be charged up over time than to try and force the charge on the bank like a gen set does when it chargeing the system ..
The bank's are design to last seven day with a five day back up in the bank system for a total of 12 days if the sun is not shineing and the other bank is not ready to go right on the seven day mark for switch over to the freshly charged bank ..
The heavyest loads on the system are done on diff days to allow the bank not to over taxed the battery bank it self and make them last for a long time intill ..
The laundry is handle on a Sat morning and all the bakeing for the week is done on a Wed dureing the week and the rest of the week is the basic everyday items like dvd player and tv or laptop computer with sat internet set up for use ..The lights are all led low power type and the water pump for the washer unit and shower system is rv high pressure 12.volt unit to handle those chores for pumping of the water from the water stowage tank into the sinks and shower and washer unit
So what do you think of the off grid system i have design for a small off grid cabin there for future use there in Alaska