0 1 00:00:04,080 --> 00:00:08,410 Hi everyone welcome back to PV Solar Energy of course. 1 2 00:00:08,570 --> 00:00:17,770 Today I'm going to give you in this section the different types of PV system the PVsystem can be divided 2 3 00:00:17,860 --> 00:00:20,040 in two main category. 3 4 00:00:20,110 --> 00:00:30,870 The grid connected PV system and the stand alone PV system first the grid connected PV system can be 4 5 00:00:30,870 --> 00:00:40,600 divided into two categories. First category it would be without a storage system mean it is without 5 6 00:00:40,620 --> 00:00:41,870 batteries. 6 7 00:00:42,130 --> 00:00:51,550 In the next type or bimodal PV the system we are using storage system which is this case is battery 7 8 00:00:52,670 --> 00:00:53,980 the stand alone. 8 9 00:00:53,990 --> 00:00:57,950 PV system can be divided into all main categories. 9 10 00:00:59,080 --> 00:01:09,890 Hybrid category and a standalone category first stand alone or off grid category can be divided in two 10 11 00:01:09,890 --> 00:01:13,230 main category first category. 11 12 00:01:13,250 --> 00:01:15,040 It would be without battery. 12 13 00:01:16,430 --> 00:01:22,220 Like the water pump the second type is with battery. 13 14 00:01:22,430 --> 00:01:25,390 It would be for residential applications. 14 15 00:01:28,300 --> 00:01:39,170 The last type of the stand alone PV system is hybrid PV system mean we are using PV power with another 15 16 00:01:39,210 --> 00:01:40,390 type of power. 16 17 00:01:40,450 --> 00:01:48,730 It could be wind turbine, hydro turbine or diesel generator or even solar cell. 17 18 00:01:50,570 --> 00:02:02,120 Let's start with stand alone PV system on the stand alone or off grid systems work in general without 18 19 00:02:02,150 --> 00:02:13,520 the utility grid as shown in this figures it can been seen that we expect a perfect match between 19 20 00:02:13,590 --> 00:02:22,120 the supply and demand or in other word, between the PV system size and load requirement 20 21 00:02:24,320 --> 00:02:29,400 when this match is done perfectly for a single load. 21 22 00:02:29,570 --> 00:02:37,630 The PV system in this case can be called a direct Coupled PV system and very minimal 22 23 00:02:38,600 --> 00:02:42,610 components are needed without the need storage. 23 24 00:02:43,620 --> 00:02:53,690 Like battery another type of stand alone requires the storage system to allows excess energy to be stored 24 25 00:02:53,750 --> 00:02:56,350 when it isn't needed 25 26 00:02:56,420 --> 00:03:02,080 by the load and can later be drawn when the sun isn't available. 26 27 00:03:02,500 --> 00:03:13,170 This type can be connected directly to DC load or AC loads through an additional power component called inverter. 27 28 00:03:13,390 --> 00:03:16,120 We already describe in the last section 28 29 00:03:22,170 --> 00:03:25,300 the other common type of stand alone system. 29 30 00:03:25,300 --> 00:03:35,540 It is a hybrid PV power as shown in this figure which uses other energy source in parallel to 30 31 00:03:35,870 --> 00:03:38,280 the PV array to supply the loads 31 32 00:03:39,640 --> 00:03:49,180 This energy source can be wind turbine, hydro Turbine, diesel generator or even fuel cell. Hybrid 32 33 00:03:49,220 --> 00:03:53,460 PV system can also use battery for energy storage 33 34 00:03:57,240 --> 00:03:58,930 the grid connected system. 34 35 00:03:58,950 --> 00:04:05,640 This type of configuration is the most common type for application where the clients want to 35 36 00:04:05,640 --> 00:04:08,360 save energy on their utility bill. 36 37 00:04:09,330 --> 00:04:21,050 And while the utility grid exists for use when the PV array is not generating any energy. The PV array 37 38 00:04:21,060 --> 00:04:27,700 can be directly coupled to the grid without any storage system. 38 39 00:04:27,720 --> 00:04:38,580 It's called utility interactive PV system or grid tied PV system as shown in this figure. 39 40 00:04:41,550 --> 00:04:51,900 Or in other case it can store the excess energy into a battery banks for later use and in this case 40 41 00:04:52,320 --> 00:05:01,190 it's called bimodal PV system or battery backup PV system as shown in this figure. 41 42 00:05:01,190 --> 00:05:11,010 We are using battery for energy storage so we can summarize that we had two main categories. 42 43 00:05:11,030 --> 00:05:14,490 First category is the grid connected 43 44 00:05:14,600 --> 00:05:20,060 The second category is a stand alone in the Next section and is the last one. 44 45 00:05:20,480 --> 00:05:35,310 We are going to form a complete calculation for PV system sizing for stand alone system so see you in 45 46 00:05:35,340 --> 00:05:38,560 the final project. 46 47 00:05:38,660 --> 00:05:39,170 See you.