Download - EPC+Energy audit of reliance infrastructure
PROJECT ON :
1.EPC
2.ENERGY AUDIT
3.ENERGY CONSERVATION AWARD
RELIANCE INFRASTRUCTURE
LIMITED, NOIDA
Presented by :
NISHEETH SRIVASTAVA
MBA-ENERGY
50803023
COMPANY PROFILE
RELIANCE INFRASTRUCTURE LIMITED
1. The division of Reliance Energy was set up in 1966 .
2. Involvement in generation, transmission, distribution
and trading of electricity and constructing power plants.
3. Significant presence in the field of execution of the
power projects on EPC basis.
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
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.
EPC CONTRACTS IN POWER SECTOR
EPC contracting
Split EPC
Multi Contracting
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 )
EPC CONTRACTUAL MATRIX
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.
SPLIT EPC
Split an EPC contract into two or more separate
contracts.
Advantages for split EPC contracts
• Create a tax effective structure.
(onshore and offshore projects )
• Reflect a different risk profile.
o Drawback
• No single point of responsibility.
SPLIT EPC MATRIX
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
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
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
LIGHTING SYSTEM – 1ST BUILDING
AC LOAD -1ST BUILDING
LIGHTING SYSTEM – 2ND BUILDING
AC LOAD -2ND BUILDING
LIGHTING SYSTEM – 3RD BUILDING
AC LOAD -3RD BUILDING
LIGHTING SYSTEM – 4TH BUILDING
AC LOAD -4TH BUILDING
TIME OF DAY TARIFF AS PER PASCHIMANCHAL
VIDYUT VITRAN NIGAM LIMITED
MAXIMUM BILLABLE DEMAND GRAPH
PROPOSALS FOR ENERGY REDUCTION
Zero Investment Required
Medium Investment Required
High Investment Required
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
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.
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
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 )
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 .
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.
MEDIUM INVESTMENT REQUIRED
Use of electronic ballast
Change of 36 W T-8 tubes with 28 W T-5 tubes.
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. )
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
CHANGE OF 36 W T-8 TUBES WITH 28 W T-5
TUBES.
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
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
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
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 %.
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?8
7109.)
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
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.
ENERGY CONSERVATION APPLICATION
ENERGY CONSERVATION APPLICATION