1. AT REPEATER STATIONS OF PIPELINE
20 KWp PV SOLAR POWER PLANT
AT REPEATER STATIONS OF PIPELINE

2. REPEATER STATION OF OIL PIPELINE
A REPEATER STATION IS AN INTERMMEDIATE INTALLATION BETWEEN TWO PUMPING STATIONS NORMALLY SITUATED AT A DISTANCE OF ABOUT 50 KM FROM UPSTREAM OR DOWNSTREAM OF A PUMPING STATION.
THERE IS ONE OR TWO REPEATER STATION(S) BETWEEN TWO STATIONS.
O & M MANAGED JOINTLY BY CONCERNED STATION & MAINTENANCE BASES..
MANNED BY WCL CHOKIDER ON SHIFT BASIS ONLY.
IT IS USED FOR PIGGING OF CRUDE TRUNK LINE AND SECTIONALIZTION OF CRUDE TRUNK AND NUMALIGARH SILIGURI PRODUCT PIPELINES,CATHODIC PROTECTION OF OIL;S LINES AS WELL AS GSPL OF IOC & DNPL,PARAMETER MEASURING/MONITORING THROUGH TELEMETRY, VARIOUS TELECONNUICATION DEVICES OF OIL AND OTHER OPERATORS AND GENERATION OF POWER FOR ABOVE ACTIIVITIES.
THERE ARE 15 FUNCTIONAL REPEATER STATIONS, 8 OF WHICH FUNCTION AS SV STATIONS FOR NSPL ALSO.

3. PICTORIAL VIEW

4. POWER GENERATION
PRESENTLY POWER GENERATED THROUGH 3X 25 KVA DG SETS, 1DUTY AND 2 STANDBY.
DG SET OPERATED ON 7X24 BASIS.
FUEL CONSUMPTION 2.6 TO 4 LITRES /HOUR.
Electrical power used for of Motorized Isolation Valves and other Motorized valves ,Cathodic Protection of PIPELINES, Telemetry and communication equipments of OIL & other operators,OFC equipment,security lights, building lighting and air conditioning.
AN AVERAGE LOAD DEMAND IS 3 TO 5 KW.

5. POWER SCHEMATIC

6. POWER GENERATION ECONOMICS
COST OF GENERATION IS HIGH(INR 61 TO 71 APPROXIMATELY)
CO2 EMISSION IS ABOUT 2.O KG/KWH.
ELECTRICAL & MECHANICAL SPARES ARE NOT READILY AVAILABLE AND VERY COSTLY TOO.
GRID POWER IS NOT AVAILABLE IN MOST OF LOCATIONS,WHEREEVER AVIALABLE IS NOT RELIABLE.

7. ONLY VIABLE ALTERNATIVE IS RENEWABLE ENERGY.
AND OF COURSE P V SOLAR POWER IS THE BEST SOLUTION

8. CHRONOLOGICAL EVENTS
FEASIBILITY STUDIES TO HARNESS SOLAR POWER WAS DONE IN FEBRUARY,2011 IN THREE LOCATIONS.
B G HILL(RS6&7) WAS TAKEN AS SITE FOR PILOT PROJECT. HOWEVER,SCENERIO CHANGED,BG HILL BECOMES OPERATIONALLY REDUNDANT.
RS5,JAGIROAD WAS TAKEN NEW SITE FOR PILOT PROJECT IN MARCH,2013.

9. EXECUTION
M/S MOSER BAER SOLAR LIMITED WAS QUALIFIED FOR THE PROJECT EXECUTION THROUGH OPEN BIDDING.
FIRM ORDER WAS ISSUED IN JULY,2014.
INSTALLATION COMPLETED ON 28/10/2014 AND CHARGED FOR TEST RUN.
PLANT PUT ON CONTINUOUS OPERATION FROM 01/11/2014.
INAUGURATED AND DEDICATED TO THE SERVICE ON 19/11/2014.

10. PLANT DESIGN LOCATION: JAGIROAD, LONGITUDE: 91.7 E LATITUDE : 26.1 N.
ALTITUDE : 167 M
PLANT CAPACITY : 20 KWp(STC)
MODULE NOM. POWER: 250 Wp
NUMBER OF MODULE: 80
NUMBER OF STRING : 4
MODULE AREA: 129 M2
CELL AREA : 117 M2.
COLLECTOR PLANE TILT- 15 deg.
Average Annual GHI: KWh/m2
SPECIFIC YIELD: 1515 KWH/KWp/YEAR(STC)
EXPECTED YIELD: KWH/YEAR(STC).

11. ENERGY BALANCE Expected Average daily Yield is 85 units .
Day Time requirement 28 to 40 kwh.
Night Time Consumption 51 to 62 kwh.
Average Monthly DG run 36 to 90 hours.

12. PLANT CONFIGURATION 80x250KWp Modules. GRID TIED PCU
A standalone (virtual) grid created by 3x SMA Make Sunny Island SI 6.0 Battery Charger/Inverter.
Battery Bank(3x 1500 AH, 48.0 V FLA Tubular).
Web Box.
Temparatures,wind speed& radiation sensors.

13. PLANT OPERATION Default day Power Source: Solar
Night time Source Battery up to DOD=> 50%.
DG set run upto the Battery SoC =<70%.
Automatic DG Set start & stop.
Manual DG Set Run through system or externally with load or no-load.
Interlocked system bypassing to run DG set only.
Web based Monitoring.
Optimal load on DG Set when run.
Stable & conditioned power supply only.
Automatic weekly I hour DG Test run.

14. PLANT SCHEMATIC

15. FLOWCHART

16. PLANT SL DIAGRAM

17. INSTALLED MODULES VIEW

18. SUNNY ISLAND AND BATTERY BANK

19. ECONOMIC BENEFIT FUEL SAVING 21,600 to28,800 Litres.
ANNUAL CO2 AVOIDANCE: Kgs.
REDUCTION IN OTHER O&M COSTS .
EXPECTED ANNUAL YIELD: Kwh.
Payback – 2 years with accelerated Depreciation Benefit.
No pollution & happy neighbours.

20. Monthly Redemption of Expected Yield
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Total %
6.99
7.33
8.97
9.14
9.41
9.01
9.34
9.35
8.76
8.19
6.94
6.57
100
KWh
1957
2052
2512
2559
2635
2523
2615
2618
2453
2293
1943
1840
28000

21. ACTUAL VS EXPECTATION
MONTHLY GENERATION-1756kwh
EXPECTED YEARLY YIELD

22. HOW NATURE CAN HELP Good day vs Bad day Insolation

23. POWER VARIATION

24. One Month Operation & Accrued Benefit
Generation-1756 KWh.
Fuel saved-2076 litres
Money saved INR for fuel.
DG Run 28 hours.
CO2 avoided 3.5 ton
Reduction in O &M Costs.
Reduction in manpower cost
Smooth operation
Peaceful Environment.
No run required for operation in normal condition.

25. WAY FORWARD
Next one at Repeater Station No. 14, Kishanganj, Bihar in current fiscal.
Five more such plant in locations Assam, West Bengal and Bihar in next fiscal.

26. Thank you