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Small Scale Grid-Tied Solar Systems in Pakistan: Their Requirement and Impact on the Economy

This presentation discusses the potential of solar energy in Pakistan, the technical details of grid-tied solar systems, and their impact on the economy. It also covers the benefits, fill factor considerations, budgetary calculations, and feasibility of implementing such systems. The focus is on reducing fuel import bills, creating jobs, and promoting clean energy.

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Small Scale Grid-Tied Solar Systems in Pakistan: Their Requirement and Impact on the Economy

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  1. Assalamualikum • Muhammad Zeeshan AftabAlam - B E Electrical (NEDUET), MBA (SZABIST) – 16 Years in Power Generation - Currently Deputy General Manager Orient Energy Systems Pvt. Ltd.

  2. SMALL SCALE GRID-TIED SOLAR SYSTEMS IN PAKISTAN THEIR REQUIRMENT AND IMPACT ON THE ECONOMY Presented at: IEEEP Karachi 34th Multi Topic Symposium, 2019.

  3. INDEX • Introduction (Energy Mix in Pakistan) • Potential of Solar Energy in Pakistan • Technical Details of Pakistan • Test case PV-Grid Hybrid System • Plant Design parameters • Financial Details • Conclusion

  4. AVERAGE ENERGY GLIMPSE! PAKISTAN

  5. ENERGY MIX

  6. ENERGY SUPPLY

  7. Energy Comparisons

  8. MANAGING SUPPLY & DEMAND GAP • Pakistan needs electricity – quickly • Choices: • Diesel Power Plants - Expensive • Wind Power Plants – Required to be installed in specific area and infrastructure. • Coal and Hydro Power Plants are usually many times bigger but take a lot longer to setup • The Solution: • Setup and erect small renewable (Solar) energy power plants at number of locations to meet the current demand and reducing import bill

  9. INTRODUCTION • Sun is our most powerful source of free renewable energy. • Pakistan is blessed with a total estimated power potential of 1,200 GW. • But too often we don’t optimize its potential as it relates to our daily life and energy needs. • May be we could be smarter about designing and managing our system to harness this free source of energy.

  10. Renewable energy country attractiveness index • USA • CHINA • INDIA • GERMANY • JAPAN • CANADA • FRANCE • BRAZIL • Chille • Nether lands • UK • South Africa • Australia • Belgium • Turkey • South Korea • Italy • Denmark • Mexico • Sweden • Portugal • Thailand • Moroco • Taiwan • Spain • Poland • Peru • Ireland • Austria • Israel • Kenya • Phillipines • Norway • Romania • Egypt • Saudia Arabia • Finland • Indonesia • Russia • Greece

  11. Solar Pricing Index

  12. RENEWABLE POTENTIAL IN PAKISTAN Solar Potential (MW) Infinity Wind Potential 50,000

  13. GRID-TIED SOLAR SYSTEM

  14. BENEFITS:

  15. Mono Vs Poly Crystalline Vs Thin Film Panels

  16. Fill Factor Consideration The short-circuit current and the open-circuit voltage are the maximum current and voltage respectively from a solar cell. The "fill factor", more commonly known by its abbreviation "FF", is a parameter which, in conjunction with Vocand Isc, determines the maximum power from a Solar cell. The FF is defined as the ratio of the maximum power from the solar cell to the product of Vocand Isci.e. The higher the value the better it is, therefore the closer this value is to unity; means there is very minimal internal resistance in the solar panel. FILL FACTOR SAMPLE: FF = 36.312 x 8.412 = 0.7447 or 74.47% 45.372 x 9.041

  17. GRID-TIED SOLAR SYSTEM IN PAKISTAN

  18. Standard Budgetary Calculations for On Grid Solar PowerInitialcost of 100kWp = PKR 8MILLION------------Rs. 80/ Per Watt Area requiredfor 100kwp = 1,500m2 = 16,145 ft2= 1,793 yard2 = 0.37 AcresEnergy Generation for 100kWp = 150,000 kWhr / Year (Reduced by 0.7% per year)Warranty for PV Panels- 10 Years, Inverters – 5 YearsGreen / Clean Energy per Year: Kilograms of carbon dioxide equivalent ----- 99,001Pounds of carbon dioxide equivalent ----- 218,260Equivalent Passenger vehicles driven for year ----- 21Equivalent Trees Seedling grown for 10 years ----- 1,637Savings:Units Generated by Solar x Current Unit Rate = 150,000 x 15 = Rs2.25M Savings / YearPayback: Total Investment / Savings = Rs. 8M / 2.25M = 3.56 Years

  19. CASE: TECHNO_COMMERCIAL FEASIBILITY OF 151.2KWp GRID_TIEDPHILLIP MORRIS PVT Ltd., SAHIWAL

  20. PURPOSE:

  21. STEP-1: SITE ASSESSMENT

  22. The meteorological data of the site has been obtained considering the latitude & longitude (coordinates) • Following parameters are used to analyze the site conditions: • Monthly Averaged Insolation Incident On A Horizontal Surface (kWh/m2/day) • Monthly Averaged Radiation Incident On An Equator-Pointed Tilted Surface (kWh/m2/day) • Monthly Averaged Air Temperature At 10 m Above The Surface Of The Earth (°C) STEP-2: SIMULATION(Helioscope)

  23. Monthly Averaged Insolation Incident On A Horizontal Surface (kWh/m2/day)

  24. Monthly Averaged Radiation Incident On An Equator-Pointed Tilted Surface (kWh/m2/day)

  25. Monthly Averaged Air Temperature At Altitude Above The Surface Of The Earth (°C)

  26. Forecasted Energy Simulation

  27. STEP-3: ACTUAL ENERGY SIMULATION

  28. MATHEMATICAL EQUATIONS

  29. PARAMETERS OF SIMULATED GENERATION

  30. PARAMETERS OF ACTUAL GENERATION

  31. FORCAST VS ACTUAL

  32. PARAMETERS OF FEASIBILITY

  33. Feasibility of 151.2 kWpGrid Tied Solar system

  34. Key parameters of Feasibility

  35. CONCLUSION • Clean Energy • Carbon Credits • Easy Availability • Cost Effective • Operation And Maintenance • Fast Payback Of Initial Capital • 25 Years Life • LCOE – Levelized Cost Of Energy • High IRR • Theft Risk of Fuel

  36. Impact on Economy • Reducing Fuel Import Bills • Creating Jobs • Grid Cost Savings • Lower your electric bills • Net metering (Small Business) • Increase your home's resale value • Local Industry may be promoted

  37. Acknowledgement I would like to thank IEEEP Karachi for providing an opportunity to present my work in the 34th Symposium at Karachi.

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