5. India’s Energy Balance

6. PV module with a battery connected to load with Converter

7. SPV based Home lighting System (Electrical Engg. Dept.) Solar Panel 12V,37Wp CFLs 12 V DC,9 W Charge Controller Max. charging current - 5 A -Max. Load current - 5 A -Nominal voltage - 12 V -Fuse - 5A Battery Low maintenance JBNS 12V,45 Ah DC Fan Volts – 12 V DC, 14 W,I=1.16A

8. Solar Panel Specifications of Home Lighting System Nominal electrical output @ 25 0 C and STC condition P max =37 Watts;V mp =16.4Volts;V oc =21.0V;I mp =2.2Amps;I sc =2.6Amp Weight of the panel=5.180KG Length of panel=97.10cm Breadth of the Panel=43.2cm Thickness of the panel=3.7cm

14. Solar Radiation on December 18,2010 in W/m 2

15. Bar Chart of Solar Global Insolation(in W/m 2 ) of Nagpur from Dec.10, 2010 to Dec.14, 2010 for the Time 7:00Hrs to 17:00Hrs

16. Bar Chart of Solar Insolation(in W/m 2 ) of Nagpur from Dec.15, 2010 to Dec.20, 2010 for the Time 7:00Hrs to 17:00Hrs

17. Plot of average global solar insolation of Nagpur on December 18, 2010 for the Time 7:00Hrs to 17:00Hrs

18. Plot of average global solar insolation of Nagpur on December 19, 2010 for the Time 7:00Hrs to 17:00Hrs

19. I-V characteristics of 37Wp solar panel of solar home lighting system at a maximum Solar Radiation of 702W/m 2 on December 18,2010(From Graph, Isc=1.68A,Voc=20.71V)

20. P-V characteristics of 37Wp Solar panel of Solar home lighting System in VNIT campus at a maximum Solar Radiation of 702W/m 2 on December 18,2010(From Graph, P mpp =26.262W,V mpp =16.53V,I mpp =1.558A)

21. Plot of battery current of solar home lighting system on December 18, 2010 assuming solar home lighting load is zero throughout the day. Solar Radiation on December 18,2010 Scale X axis, 1 μ S=1Hour In Hours Battery Current in Amperes

24. Plot of battery current of solar home lighting system on December 18, 2010 with full load of 2CFLs and 1 DC fan applied for 24 Hours Solar Radiation on December 18,2010 Scale X axis, 1 μ S=1Hour In Hours Battery Current in Amperes

25. Plot of Energy Cycle of the battery of solar Home lighting system on December 18, 2010 with full load of 2CFLs and 1 DC fan applied for 24 Hours. Solar Radiation on December 18,2010 Scale X axis, 1 μ S=1Hour

27. Plot of Battery Current when load is switched on between 19:00Hrs to 23:00Hrs on December 18, 2010 Load Current=2.66A Solar Radiation on December 18,2010 Scale X axis, 1 μ S=1Hour In Hours Battery Current in Amperes

28. Plot of Load Current when load is switched on between 19:00Hrs to 23:00Hrs Solar Radiation on December 18,2010 Scale X axis, 1 μ S=1Hour In Hours Load Current in Amperes

29. Plot of Battery Energy when load is switched on between 19:00Hrs to 23:00Hrs (Energy gain due to solar power to the battery= 85.463Wh Energy loss due to running of load for 4 hours = - 42.483Wh) Solar Radiation on December 18,2010 Scale X axis, 1 μ S=1Hour In Hours Battery Energy in Wh

31. ENERGY ANALYSIS OF SOLAR HOME LIGHTING SYSTEM CASE III LOAD APPLIED FOR 4 HOURS IN DAY BETWEEN 11:00HRS TO 15:00HRS

32. Plot of Battery Current when load is switched on between 11:00Hrs and 15:00Hrs on December 18, 2010 Solar Radiation on December 18,2010 Scale X axis, 1 μ S=1Hour In Hours Battery Current in Amperes

33. Plot of Load Current when load is switched on between 11:00Hrs to 15:00Hrs on December 18, 2010. Solar Radiation on December 18,2010 Scale X axis, 1 μ S=1Hour In Hours Load Current in Amperes

34. Plot of Battery Energy when load is switched on between 11:00Hrs to 15:00 Hrs December 18, 2010 Energy Gained by the Battery =29.27Wh Energy Loss by the battery at the end of day=-42.4Wh Solar Radiation on December 18,2010 Scale X axis, 1 μ S=1Hour In Hours Battery Energy in Wh

35. Plot of Battery Energy when load is switched on between 11:00Hrs to 15:00Hrs for two consecutive days of December 18, 2010 and December 19, 2010. The Energy Deficit at the end of 1st Day i.e. December 18, 2010 =-42.4Wh The Energy Deficit at the end of 2nd Day i.e. December 19, 2010 =-84.7Wh Solar Radiation on December 18,2010 Solar Radiation on December 19,2010 Scale X axis, 1 μ S=1Hour In Hours Battery Energy in Wh

36. Energy Analysis of Solar Home Lighting System CASE IV LOAD RUN TIME IS REDUCED TO 2 and 1/2 HOURS IN DAY BETWEEN 11:00HRS TO 13:30HRS

37. Plot of Battery Energy when load is switched on between 11:00Hrs and 13:30Hrs for two consecutive days of December 18, 2010 and December 19, 2010 The Energy gain at the end of 1st Day i.e. December 18, 2010 =21.371Wh The Energy gain at the end of 2nd Day i.e. December 19, 2010 =43.002Wh. Solar Radiation on December 18,2010 Solar Radiation on December 19,2010 Scale X axis, 1 μ S=1Hour In Hours Battery Energy in Wh

39. Integration of Solar Global insolation for January month on one particular day PSH of January=4.899Hours (Ref:-Hand book of Solar Radiation data for India 1980, compiled by Anna Mani, Allied Publishers Pvt. Limited. New Delhi, India) In Hours Scale X axis, 1 μ S=1Hour Scale Y axis, 1KV =1KWH/m 2

42. Peak Solar Hours(PSH) of Nagpur Average PSH=5.437Hours (Ref:-Hand book of Solar Radiation data for India ) In Hours

45. Plot of Battery Energy when load is switched on between 11:00Hrs and 15:00Hrs for two consecutive days of December 18, 2010 and December 19, 2010 after addition of 10Wp panel in parallel to 37Wp panel The Energy gain at the end of 1st Day i.e. December 18, 2010 =4.29Wh The Energy gain at the end of 2nd Day i.e. December 19, 2010 =9.001Wh Solar Radiation on December 18,2010 Solar Radiation on December 19,2010 In Hours Scale X axis, 1 μ S=1Hour Battery Energy in Wh

47. Battery Current for Tillted Solar Panel(Latitude+15 deg)

48. Energy Cycle of the Battery for Tilted Surface for 24 hours of Load

49. Energy Cycle of Battery for 4 hours of Run for South facing Tilted surface(Tilt Angle=45 0 C)

53. Thankyou