IIT Madras

IIT Hyderabad

IIT Bombay

IIT Indore

IIT Gandhinagar

IIT Guwahati

IIT Ropar

Kotak - IIT Madras Save Energy Mission (KISEM)

Indian Institute of Technology Madras

EAR/23-24/KISEM/IITR-06

The subject plant is located in Patauda district of Haryana and falls under NIC Category-22209. This assessment was carried out by the IEAC Center, IIT Ropar, during the course of the year 2023.

General Info

Principal Product

Plastics Spool Manufacturing

Plant Area (Sq.ft)

3,00,000

No. of Employees

300

Production Hours

7,200

Annual Production

Annual Sales

₹50,00,00,000

Assessment Summary

Total Energy Costs(per year)

₹3,72,07,152

Total Recommended Investment(one time)

₹69,60,800

Total Recommended Savings(per year)

₹44,55,354

Energy Costs Calculation
Electricity

Annual Usage

39,63,953

Unit

kWh

Unit Cost

₹8.4

Annual Cost

₹3,32,60,562

Diesel

Annual Usage

43,851

Unit

Ltr

Unit Cost

₹90

Annual Cost

₹39,46,590

Total Energy Costs(per year)

₹3,72,07,152

Observations & Recommendations
BR - Boiler & Steam Line
ObservationRecommendationUnit SavingsAnnual SavingsInvestmentROIStatus
High surface temperature is observed on the barrel and heater section near to material loading hopper in all the Injection moulding Machines (47 Nos.)Provide proper thermal insulation is to the heater section in all Injection moulding Machines57,865₹4,62,919₹1,50,0003.9
CR - Compressor
ObservationRecommendationUnit SavingsAnnual SavingsInvestmentROIStatus
Multiple air leakage points were observedArrest all air leakages regularly in the compressed air lines.31,615₹2,52,920₹25,0001.2
Screw compressor unloading time is highThe screw compressor can be operated with VFD drive29,120₹2,32,960₹75,0003.9
CT - Cooling Tower
ObservationRecommendationUnit SavingsAnnual SavingsInvestmentROIStatus
It is observed that the cooling tower installed for the plant is of oversizedOperate only one compartment (cell) of the cooling tower (150 TR) for the existing plant load (79.37 TR)47,061₹376,488₹10,0000.3
The process water circulation pump (30 kW) efficiency is 36.6% as the flow is regulated by throttling.VFD drive can be used for flow regulation44,234₹3,53,875₹1,60,0005.4
Hot water flow rate through cooling tower is observed as very high. For balancing both hot and cold water flow, both hot and cold well are interconnected, thus hot and cold water mixBoth hot and cold-water flow rate should be balanced and VFD drive can be used to regulate the flow. Also, separate both hot and cold well to avoid mixing of both hot and cold water75,704₹6,05,632₹1,00,0002
FN - Fans
ObservationRecommendationUnit SavingsAnnual SavingsInvestmentROIStatus
44 number of conventional wall mounted fans of 180 Watts were used in the plant.Conventional energy inefficient fans can be replaced with energy efficient BLDC fans of 100 Watts19,008₹1,52,064₹1,62,80013
45 number of conventional pedestal fans of 180 Watts were used in the plant.Conventional energy inefficient fans can be replaced with energy efficient BLDC fans of 100 Watts19,440₹1,55,520₹1,71,00013
20 number of conventional pedestal and wall mounted fans of 100 Watts were used in the plantConventional energy inefficient fans can be replaced with energy efficient BLDC fans of 35 Watts9,360₹74,880₹76,00012
7 number of conventional pedestal fans of 150 Watts were used in the plant.Conventional energy inefficient fans can be replaced with energy efficient BLDC fans of 100 Watts1,512₹12,096₹21,00021
DM - Demand Management
ObservationRecommendationUnit SavingsAnnual SavingsInvestmentROIStatus
Contract demand with DISCOM is unutilised.Surrender 400 kVA of unutilised excess demand as the billing is based on 100% of the contract demand₹7,92,000₹10,0000.2
ALS - Alternate Source of Power
ObservationRecommendationUnit SavingsAnnual SavingsInvestmentROIStatus
An off-grid 900 kWp solar plant without storage is installed and during the peak solar production plant demand is less than solar production.It is recommended to convert 115 kWp plant capacity to off grid mode with battery storage123,000₹984,000₹6,000,00073.2