 Now you've done the initial shading analysis or shading plotting, right? We're going to use the example of the wing wall that we started with. So imagine that we had a Photovoltaic array that for some reason the client wanted mounted vertically on their south-facing wall and there was a Wing wall off to the west and this is off to the west here that they're seeing And we're trying to identify how many hours with that shade when would that shading occur and Can then can we interpret that those hours of shading and input that into something of our energy System modeler Sam. So look at this. We see that we've got a plot here of different times When shading is going to occur during the June months the summer months and During the winter months and we know that a lot of shading is going to occur in the afternoon So now we go over and I've actually collected These dates and times for each of these months together for January through December and so I'm roughly saying that you know in January We're getting hours of shading from about four o'clock remember this four o'clock line Travels all the way down here. So from four o'clock on We're going to get No sunlight. So we give it a value of zero in the month of March For example, I look on the March line. This is the late March But so if I go up to here to the middle of March or the beginning of March, excuse me, I'm going to find that Excuse me, this would be the end of March, I'm going to find that from about 230 And if I look up at the top of the line, I can see this is about 230 on through the rest of the day I'm going to have Shading and so maybe in this one hour. I might sign it a half value And I say the half hour is going to be shaded and then the rest of the hours are going to be zero, right? Okay, and I do this all the way through So I've kind of made notation of where the hours the shading starts for that first hour and whether or not it's a half hour For the course of modeling now if I bring up Sam system advisor model, you're seeing the launching of that and We've got I'm going to resize this So that it will fit and this is going to be your first exposure to Sam. So Sam has an interesting Launch page. It's got a lot of information News in terms of what's happening in Sam the webinar is coming up I guess in May and One thing I do not want you to do is to start the solar wizard that is not for you We are going to do it Directly by choosing projects and the types of technologies that we're interested in and the financing project that we're interested in So let's just call this one shading one. It's just going to name the file and we're going to create that new file It's going to give us a choice You're going to see in one column select a technology photovoltax Concentrating solar power or solar water heating are going to be the solar ones that we would be interested in you're going to choose photovoltax There's a submenu PV watts is what you do not want PV watts is is relatively simplistic Modeling we want component based modeling that we get with either flat plate PV or concentrating PV So once I've chosen flat plate PV modeling, I'm going to go over and I'm going to select a residential financing option And we're doing this just as our first example in the future. We can look at residential commercial power purchase agreement and Utility options, so let's just click okay, and it automatically creates a default case photovoltax and You'll notice that all along here. I've got a list a list of tabs right up at the top here. It's listed shading My technology and market flat plate PV for residential is listed up here the location of the resource is here So I can go in here and I can type in Let's see state colleges are going to be listed. So I'm going to list Pittsburgh. Yes So I click Pittsburgh and it inputs all the solar data for Pittsburgh But we're interested in in the shading part of this. So we're just going to select out the tab on performance adjustments In which case, I'm going to move this guy over and expand it You're going to see that we have a table here. This is a very convenient table that we can use Alongside of our little note noted values of shading in January February March and so on so I can go in here and this is basically Saying that when are you thinking that shading is going to? Stop your system from performing and shading is a clear example of stopping your system from performing in photovoltaics so I'm going to look at January. I'm going to say January from four to five on is going to be zero So I can actually go right here Select these cells Apply zero to those cells and they are red it out, right? I can go for to February three to four Same type of process. I could either type zero and then progress along or I could just apply Zero to all of these selected cells So similarly, I'm just going to progress along here and Finally, I'm at March March from the two to three hour. I had given it a value of 0.5 so basically just a half hour and notice how it's about half the value of color otherwise I'm just going to make everything red and so I'm just going to progress through this Three to four Zeroes may is three thirty to four. So here we've got another deviation Point five These guys are gonna get Zeroes grab those cells there we go Keep on going through here and you see that I'm just methodically Notating all of these guys down and ultimately I'm going to be converting a lot of these cells to zeros In which case I can have all this information So you say that maybe some of these guys aren't as bad actually those are four o'clock But all of these guys are going to be times when if the Sun is in the sky and Sam knows when the Sun is in the sky if the Sun is in the sky then There's not going to be output to your photovoltaic panels based on this input very useful Ultimately what we would do Resize this Ultimately what we would do is Click the green button down here it's going to compile your simulation and it gives you monthly output of Power cash flow of things like this, but what it's done is it's incorporated All of your performance adjustments into that system so that in the case of our answers here where The annual energy was four point one six nine Kilowatt hours I believe yep For this case if I were to take that performance adjustment out Just take all of these guys that I've selected Instead of that apply them as ones Right, let's put that die again and instead of four point six one. I have four point six six Or four thousand six hundred sixty six kilowatt hours, so I've increased things dramatically and notice how that edge in the winter months Is a lot higher now, and that's because that shading is correct So this is a way for your tool for your to be used in Sam to So all this work that you put together to do shading analysis to understand angles that ultimately lead to shading analysis is directly relevant to simulations inside of a tool like Sam where if I do if I add shadows into a scenario, I'm going to decrease My annual energy output and I can calculate that so I'm using this entire lesson to get to the point where I can use this Inside of Sam this connects us directly to our ultimate project goals at the end of the Semester all right great