This is a presentation of summer internship of 8 weeks done in Reliance Infrastructure on the topic of EPC + energy audit of buildings + energy conservation application award nomination

1. Project on :1.EPC2.Energy Audit3.Energy Conservation Awardreliance infrastructure limited, noida Presented by : NISHEETH SRIVASTAVA MBA-ENERGY 50803023

2. Company profile RELIANCE INFRASTRUCTURE LIMITED The division of Reliance Energy was set up in 1966 . Involvement in generation, transmission, distribution and trading of electricity and constructing power plants. Significant presence in the field of execution of the power projects on EPC basis.

3. 1.EPC Engineering Procurement Construction Commonly adopted by private companies Turnkey contract EPC provides: A single point responsibility A fixed contract price A fixed completion date Performance guarantees

4. Why EPC ..? Competency Control Marketplace Priorities 1. Maintaining budget 2. Maintaining schedule 3. Establishing and maintaining quality In EPC contract both parties agrees on the standards with regards to the design and engineering, construction, procurement, testing, commissioning, check and acceptance of which details of the specification from an integral part of the contract.

5. EPC contracts in power sector EPC contracting Split EPC Multi Contracting

6. EPC Contracting Single point responsibility. A fixed programme with a date certain for delivery A fixed price Guaranteed performance and reliability level. Tripartite (or direct) agreement between the funder and each member of the supply chain. Example : BTG ( Boiler Turbine Generator )

7. epc contractual matrix

8. Key conditions for epc contract Identifying the risk profile and allocating risk. Price and payment Time and delay LDs. Performance guarantees and performance LDs. Variations to the works. Defects in the works. Caps on liabilities.

10. Drawback

12. Energy Audit An inspection, survey and analysis of energy flows in a building, process or system with the objective of understanding the energy dynamics of the system under study. TYPES OF ENERGY AUDITS 1. Preliminary Audit 2. Investment-Grade Audit

13. Energy audit methodology Visual inspection and data collection Observations on the general condition of the facility and equipment and quantification Identification / verification of energy consumption and other parameters by measurements Detailed calculations, analyses and assumptions Validation Potential energy saving opportunities Implementation

14. Data collection Walk through survey of all the four Reliance Energy building and collection of data regarding 1. Lighting System 2. Air conditioning System 3. DG Set

15. Lighting system – 1st building

16. AC LOAD -1stbuilding

17. Lighting system – 2ndbuilding

18. AC LOAD -2ndbuilding

19. Lighting system – 3rdbuilding

20. AC LOAD -3rdbuilding

21. Lighting system – 4thbuilding

22. AC LOAD -4thbuilding

23. Time of Day Tariff as per PaschimanchalVidyutVitranNigam Limited

24. Maximum billable demand graph

25. Proposals for energy reduction Zero Investment Required Medium Investment Required High Investment Required

26. Zero investment required SAVINGS INCASE OF COMPUTERS PERIPHERALS Power consumed by 1 systems ( LCD's ) = .31 units / hr Power consumed by 1 system( CRT ) = .376 units / hr

27. Savings It was observed that during lunch break from 1:00 pm to 2:00 pm if the systems are switched off then there is a scope of lot of power saving Let us take 200 CRT and 100 LCDs are switched off by the employees while going for lunch Then Savings = ( .31 * 100 + .376 * 200 ) * 4 = Rs 531 per day Savings per month = Rs 531 * 28 = Rs 14,868.

28. Savings in case of CPU If 300 CPU are switched off for an hour from 1:00 pm to 2 :00 pm Then Power saved for 300 CPU’s = 300* .627 = 188.1 units Saving in cost = Rs 5. * 188.1 = Rs 940.50 / day Monthly saving = Rs 940.50 * 28 = Rs 26334 Net saving = 26334 + 14868 = Rs 41202 / month While in power saving mode the system uses 15 % of the real power So real savings = 15 * 41202 /100 = Rs 6180.30 /month/ building

29. AC savings In canteen it was observed that all the four 2 TR split AC of sector 24 building works from 9 am to 6 pm while mainly it is need for only lunch hour, so making the working of AC in canteen from 12 pm to 3 pm Savings per day = 1.35 * 4* 2*4 = 43.2 units Saving per month = 43.2 * 4 * 28= Rs 4838/month (The multification factor for converting in electrical power is 1.35KW/1 TR )

30. Other factors that can considered The current working temperature of A.C = 24 degree Celsius According to ECBC (energy conservation building code) , the ambient working temperature of Air Conditioning should be between 26-27 degree Celsius. Each 1 degree C temperature rise will lead to saving of 2% to 3% energy .

31. Other factors that can considered Proper use of blinds (chicks) through windows to utilize natural light. Encourage people not to use lift especially for one or two floors. Replacing air conditioners after every 7 years. Considering the annual operating cost and the deterioration in performance.

32. Medium investment required Use of electronic ballast Change of 36 W T-8 tubes with 28 W T-5 tubes.

33. Use of electronic ballast Total working hours per year = 3720 hrs Units consumed by normal choke = 3720 / 18 = 206.67 units Total Cost = 206.67 * 4= Rs 826.68 per year Units consumed by Electronic choke = 3720 / 33 = 112.72 Total Cost = 112.72 * 4 = Rs 450.88 per year. Difference = Rs (826.68 – 450.88) = Rs 375.80 ( Normal choke consumes about 1 unit of electricity when used for 18 hours. While Electronic Choke consumes same 1 unit of electricity when used for 33 hours. )

34. Use of electronic ballast Using 612 electronic chokes can save =Rs 375*612 per year. = Rs 2.29,989.60 Cost of 1 T-5 28 W Electronic choke of Philips = Rs 500 = 500 * 612 = Rs 306000 Payback period = 30600 / 222989.60 = 1.3722 years

35. Change of 36 W T-8 tubes with 28 W T-5 tubes.

36. Change of 36 W T-8 tubes with 28 W T-5 tubes. T-8 36 W initial rated output = 2950 lumens T-5 28 W initial rated output = 2900 lumens Total no. of tubes in sector- 24 = 612 System usage per day = 9 hrs System usage per year (310 days) = 2790 hrs Total energy consumption for 36 W tube per year = (36*27900*612) / 1000 = 614692.8 Kw hr

37. Change of 36 W T-8 tubes with 28 W T-5 tubes. Cost per unit = Rs 4. Total cost = Rs 61462.8 * 4 = Rs 2458771.2 Total energy consumption for 28 W tube per year = (28*27900*612)/1000 = 478094.4 Kw hr Cost per unit = Rs 4 Total cost = Rs 4 * 478094.4= Rs 1912377.60 Difference (Rs) = (2458771.20-1912377.60) = Rs 546393.60 per year

38. Calculation of Pay Back period by replacing of T-8 tubes by T-5 No. of tubes to be changed = 612 Cost of each tube with fittings comes out to be Rs 600 So total Investment = Rs 600 * 612 = Rs 367200 Saving per year = Rs 546393.60 Payback Period = 1.4879 years

39. HIGH INVESTMENT COST 1. TERRACE GARDEN A well-designed rooftop garden can provide several benefits, including reduced energy use, reduced urban heat effect, reduced storm water runoff, better air quality and increased green space In summers the terrace garden can reduce the Air conditioning bill of top by approximately 20 %.

40. TERRACE GARDEN Estimated Area of the terrace of sector – 24 building , Noida = 900 square metre Estimated cost of building terrace garden = Rs 100 per square foot (Source:http://money.outlookindia.com/article.aspx?87109.) Roof top area = 900 sq. metre = 900 * 10.763 911 square = 9687.5199 sq. feet Total cost of building a terrace garden = Rs 9687.5199 * 100 = Rs 968751.99

41. TERRACE GARDEN Air conditioning systems at 6th floor of sector 24 building Noida 2 * 7.5 TR + 4 TR= 19 TR Now working of these ACs from 9 am to 6 pm will consume total unit in a month = 19 * 1.35 * 9 * 28 = 6463.8 units Total cost = 6463.8 * 4 = Rs 25855.2 If 20 % of reduction is achieved from terrace gardening through ACs bill Then saving per month = Rs .20 * 25855.2 = Rs 5171 per month Suppose ACs work for 6 month in a year So total cost saved = Rs 6 * 5171 = Rs 31026 / year.

42. Energy conservation application

43. Energy conservation application