Not going to get the most intelegent answers here on on tractor topic. Some know what they are talking about.
A couple of questions.
1) is this on a property with power or would the building need a new meter and service if run from the power co.? I have a remote cabin in Pike Co. Oh 600" from the road. Running a line from the road is not an financially sound option as the wire runs $15/ft ($9,000) to install and then they have a $35/mo min fee for line maintenance. So these also play into cost per Kw/hr.
You need to think of a power system as a Cooler of sweet tea. At one end you have people filling their cups from the spicket and at the other you have the party host filling the cooler. 1st. is to estimate how big a cooler is needed. i.e the batteries.
When you say 800 to 1000W is that peek wattage? or a constant draw. at 800W that is ~600kw/hr per month = house usage.
You need to calculate your AH requirements. So take what you want to run and devide by 12. i.e. a 24W compact Florecent bulb will draw 24W/12= 2 amps. How long per day will this run. 5 hr. per day perhaps = 10 amp hours. if you have 10 of these that would be 100AH.
Two L11 golf cart Batteries will hold 225AH (50% drain) Thus these will supply all the lights for two days with out recharging.
Now look at how much time is available to fill the cooler. There are charts for this but in mid ohio in the summer you can assume 10 hours. Ludwig discussed 180W panels/ 180/12= 15 amp thus 1 panel would provide 15 amp hours (for 10 hr) solor day. That is how fast the bucket is being filled. thus in over 7 days =~100 AH. Thus two panels would fully charge the battries from a full drain in a week.
Most stand alone systems also rely on a small wind turbine which can produce 800W or 67A/hr in 10mph winds.
There are many options and going grid is not always the answer.
My opinion is use solor/wind for lighting/radio and small short use of tools and get a 3KW portable gas generator for the power hog appliances that run a short time.
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