New Solar Design. Need help with figuring out how the KW system works??

[Sunking]

but I still don't understand how much energy a 300w solar panel takes in. I've been trying to research it and come to realized that it takes in 300w DC which is higher once it is converted into AC. But I'm not completely sure

on a good day at solar noon around 80% of it rated power for a few minutes per day, then it looses some when converted to AC..

What I will tell you and you will not like it at first, but once you realize what I am telling you is the truth you will thank me later.

FORGET ABOUT GOING OFF-GRID BATTERY. You are already connected to the grid, stay connected and praise the Lord it is there and dirt cheap. If you are a biz man like myself then you will understand if you have to pay 20 times more for electricity than you do right now for the rest of your life, you will not be in biz any longer and be bankrupt. You would be looking at $300K right now in cash to go off-grid, and $100K every 5 years replacing batteries. You do not need your accountant to figure that one out.

If you use 1700 Kwh/month your bill is around $200/month more or less depending on your location. Now figure out how much $300K will earn you in 5 years if invested. Put it another way You will spend $300K up front in cash for your electricity bill for the first 5 years or $5000 a month for electricity. So do you want t pay $5000/month or $200/month for electricity. Your choice. Invest that same $300K in a good Fund that pays 10% and it will pay you $2500/month. More than enough to cover your electric bill.

[LemonChips]

on a good day at solar noon around 80% of it rated power for a few minutes per day, then it looses some when converted to AC..

What I will tell you and you will not like it at first, but once you realize what I am telling you is the truth you will thank me later.

FORGET ABOUT GOING OFF-GRID BATTERY. You are already connected to the grid, stay connected and praise the Lord it is there and dirt cheap. If you are a biz man like myself then you will understand if you have to pay 20 times more for electricity than you do right now for the rest of your life, you will not be in biz any longer and be bankrupt. You would be looking at $300K right now in cash to go off-grid, and $100K every 5 years replacing batteries. You do not need your accountant to figure that one out.

If you use 1700 Kwh/month your bill is around $200/month more or less depending on your location. Now figure out how much $300K will earn you in 5 years if invested. Put it another way You will spend $300K up front in cash for your electricity bill for the first 5 years or $5000 a month for electricity. So do you want t pay $5000/month or $200/month for electricity. Your choice. Invest that same $300K in a good Fund that pays 10% and it will pay you $2500/month. More than enough to cover your electric bill.

Ya I've made my peace with that. I just want to understand how it works

[Sunking]

Ya I've made my peace with that. I just want to understand how it works

OK what you can consider is a Grid Tied System. But don't let the supporters fool you into thinking it will save you big bucks because it may not as many are finding out, especially those who cannot pay cash up front for it and have to take a loan. You will know who they are when they cry when they read this.

For a GTI system you look at your electric usage for as many years back as possible to get a good data base on average monthly usage. You then decide what percentage of that power you want to replace with solar. Anywhere from 10 to 100%. To make things easy let's say you use 1000 Kwh /month, your electric rates is $0.10/Kwh for a $100/month bill. Your location has a 4 Sun Hour average day year round and you want to replace 100% with Solar so you net 0 NET usage averaged over 12 months.

OK if you use 1000 Kwh month then you use 33 Kwh/day. A GTI system is 77% efficient. That means your panels need to generate 33 Kwh / .77 = 42.9 Kwh/day. To find the panel wattage you take the Kwh/Sun Hours. So you would need 42,900 Kwh / 4 Sun Hours = 10.725 Kw or 10,725 watt solar panel to meet your goal.

Now take it one step further. Let's say after all rebates and incentives it cost you $4/watt to install and you have to take out a loan for 10 years @ 6%. Your initial up front cost is $4 x 10725 = $42,900. Your monthly loan payment on a 10 year note at 6% is $426/month. Plus your utility will charge you a monthly service and transmission charges of $15 to $25 month. So you go from paying $100/month to the mean ole greedy electric company every month to paying your friendly banker $426/month plus a electric company service charge of $15/month. You just saved $85/month according to your solar sales rep. That smiley face is your solar sales rep dancing all the way to the bank with your check you borrowed from the bank. You really showed the Electric Company who is boss huh?